Editing Horus Heresy (section)

==The Main Book Series==
{{Spoilers}}
For the last decade, [[Black Library]] has been publishing novels that explore the events of the Horus Heresy, looking at the rivalries among the [[Primarchs]] and exploring just why everything went down the tubes. The novels are by a selection of different authors, which is a total pain if you like to organise your books alphabetically by author. The reception to the series has been somewhat... mixed; books generally considered to be good include [[Dan Abnett|the first trilogy]], The First Heretic, Know No Fear, Fear To Tread, [[Aaron Dembski-Bowden|Betrayer]], [[White Scars|Scars]], [[Space Wolves|Wolfsbane]], ([[Skub|''maybe'']]) [[Raven Guard|Deliverance Lost]] , and the short stories [[Alpha Legion|The Serpent Beneath]] and [[The Last Church]].

Of course, like we mentioned, there's some that are... um... Well, let's just say that the worst are a [[skub|matter of much debate]]. And there a couple that are just objectively bad (Battle for the Abyss).

===Books I - X===
*'''''Horus Rising:''''' A prologue story, introducing us to the series and Garviel Loken who will grow into a very significant and popular character, the 'Jim Raynor from Starcraft' of the heresy. Black Library needed a killer opener and they succeeded, Dan Abnett handling it pretty well. An Emperor (not [[Emperor|Him]]) is killed at the beginning and some bugs are killed on a planet called Murder for no reason other than they were there. The [[Interex]] show up and ask "whadya do that for?". Negotiations with them go sour when [[Erebus]] steals the '''MURDER SWORD''' from them. It is worth noting that if the Interex had some goddamn CCTV set up in their museum of awesome and valuable weapons then the whole heresy could possibly have been avoided.
*'''''False Gods:''''' Horus falls at Davin when wounded by the '''MURDER SWORD''' and gets a crash course in the chaos gods from [[Erebus]] & [[Magnus]]. After getting shown a few "truths" that WILL HAPPEN in the future (like the Emperor being worshipped as a god and Horus being reviled and forgotten) he decides to make war on the Imperium to [[FAIL|prevent]] all this from happening. Actually a rather weak and rushed affair when it comes to detailing the Horus Heresy's origin story. Until this point, we've been exploring Horus' character in great detail for 1.5 books, but then he has a nasty fever dream, sees a few bad prophecies and boom, he wakes up as a traitorous Saturday morning cartoon villain, after which point his machinations to create the Isstvan III event and Dropsite Massacre or any other bits of the heresy go completely undetailed and left behind the scenes. The really cool shit in this book is the battle on Davin, as the Sons of Horus and the Imperial Army fights against a massive horde of chaos zombies in a foggy swamp and the wreck of a space ship.
*'''''Galaxy in Flames:''''' Isstvan III happens and the traitors send the loyalists down to the planet without reinforcements and proceed to bomb them to fuck. Things don't go to plan when [[Angron]] decides to invade, turning it into a [[Not as Planned]] drawn out conflict that the Warmaster can't really afford - Loken is presumed dead after a duel with Abaddon. While it's good to have a whole book detailing a key event in the Heresy, there isn't actually any important or interesting dialogue to read that would make you glad you didn't just read a synopsis. There's also an embarrassingly written sequence towards the end, where a large number of loyalists survive an Exterminatus event by fleeing to some magical and super convenient bunkers. They see virus bombs entering the planet's atmosphere with the naked eye and somehow have enough time to run deep enough underground to survive one of the Imperium's most effective superweapons.
*'''''Flight of the Eisenstein:''''' the other side of ''Galaxy in Flames''. Nathaniel Garro escapes and gets marooned in the warp fighting daemons, eventually gets saved (and mega-bitchslapped) by [[Rogal Dorn]], who does not take the news from Isstvan [[Rage|very well]]. The first bit of the novel is so far 'the Death Guard's novel'. There is also the very first canonical appearance of Plague Marines, Euphrati Keeler being all mystical and shit, and Malcador recruiting Garro as the first Knight-Errant.
*'''''Fulgrim:''''' A divisive entry that is either forgettable to some or pretty interesting depending on who you ask - depends how much you like the Emperor's Children. Tells the story of the III Legion from the Great Crusade all the way up to the [[Drop Site Massacre]] in one book. In short Fulgrim finds a sword, gets possessed, kills Ferrus Manus - the end. It is written by Graham McNeill though, and it has an awesome quote from Fulgrim: "My Emperor's Children. What beautiful music they make." The second plot of this book is about some human, but it is so forgettable the writer has it dropped halfway through the book. The human plot also explains where [[Lucius]] get his self-scarring habit from: a painter woman told him it will make his face perfect (ugly) again, because he wouldn't shut up about how Loken ruined his perfect beauty with a sucker punch.
*'''''Descent of Angels:''''' This is the Heresy book that isn't about the Heresy, instead focusing on [[Zahariel]]'s time on [[Caliban]]. It portrays [[Lion El'Jonson]] having to deal with some social awkwardness (he cannot read people at all, so he comes off as 'do what I say or die!') and having Luther to handle the small talk. Hints that the Great Crusade <s>does more harm than good</s> {{BLAM|is bringing the lost colonies of mankind together into a united future!}} Luther gets sent home with Zahariel to hustle up more Dark Angels. Another divisive book, but could definitely have used some more time with the editor. Be aware that this book was published long before GW had decided what to do with the Lion's loyalty and personality, so its descriptions of the Lion are outdated and do not match his current status.
*'''''Legion''''' introduces [[the Cabal]], the [[Perpetual]]s and [[Omegon]]. READ THIS BOOK. Or don't, as this is where those things that would eventually take over the Heresy series and according to many completely ruin it (Cabal, Perpetuals) are introduced. I still would recommend reading it since when the novel introduces these ideas they are very fresh and interesting. Don't blame ''Legion'' when the rest of the novels were what ruined it. The [[Alpha Legion]], along with the Geno Chiliad, a regiment of genetically engineered supermen-yet-not-Astartes lead by anime lolis called ''uxors'' (High Gothic for "wives") is trying to bring some Chaos cultists in <s>space Afghanistan</s>[[Nurth]] into compliance. The cultists activate planetary self-destruct blood sacrifice; as this goes down, the Alpha Legion meets with the [[Cabal]], gets a glimpse of their vision of the future ("the Alpharius gambit"), agrees to work with them, then kills off all non-legion bystanders & ships with "FOR E-MONEY"! This book is still 100% canon, but in later books GW seems to have changed their mind on the Alpha Legion so they abandoned most of the plots from this book.
*'''''Battle for the Abyss:''''' The book is so bad that other authors tried to retcon it out of existence. This book is so bad that you would have thought it was cobbled together from [[Matt Ward|Wardian fluff]] stitched together by [[C. S. Goto]]. Reading this book, in fact, causes mind cancer, which is to say, that it does not create brain tumors, but hurts the ideas of the reader. Everyone dies, so it does not affect much (as in anything). The only thing you need to remember is [[Lorgar]] built a fuckhueg space ship and filled it with Dreadnoughts, and it failed miserably. The book's adherence to canon is an atrocity, but it does contain some decent depictions of ship-to-ship combat as a mildly redeeming quality.
*'''''Mechanicum:''''' Easily one of the best novels in the series, it explores many hidden/forbidden aspects and lore of the Mechanicum. Techpriests turn renegade after Horus tells them they can do whatever they like with technology, so they release forbidden viral scrapcodes and screw everything up. Also turns out that [[Emperor|Big-E]] invented the Machine-God by sealing a C'Tan on Mars back during the Saint George era, giving everyone visions of technology. Also more subtle hints that the Emperor is a god himself as he uses divine golden light to heal machines and instant access super wikipedia. Contains a lot of Titan awesomeness and [[Imperial Knight|Knights]] badassery. And for extra Grimdark, a tech priestess discovers that the Dark Age era humans stored a backup copy of Wikipedia in the warp and <s>with a giant psyker powered terminal accesses said Wikipedia and restores all the knowledge of mankind</s> floods her forge with lava to deny the traitors access. A psyker tech savant meets up with the gaoler of the Void Dragon and takes over his fuck long shift.
*'''''Tales of Heresy:''''' short story collection, including [[The Last Church]]. Has a lot of twist endings.
** '''''Blood Games:''''' An assassin tries to kill the emperor. The Adeptus Custodes go to kill a traitor on Terra. The assassin was a Custodes probing the palace defenses. The traitor was a triple agent working for Dorn. The bodyguard of the triple agent turns out to be an Sons of Horus assassin who detonates a bomb that kills the triple agent and nearly accomplishes a suicide run to destroy a bunch of reactors controlled by the triple agent.
** '''''Wolf at the Door:''''' The Space Wolves kill some Dark Eldar and are the defenders of everyone who does not defy the Emperor. When the liberated planet chooses freedom over the Emperor, the Wolves invade it, of course.
** '''''Scions of the Storm:''''' The Word Bearers destroy a human civilization that has crystal cities, crystal robots, and lots of lightning. They worshiped the Emperor, but Lorgar no longer does. This is also later a chapter of ''The First Heretic'', but they're narrated from a slightly different point of view .
** '''''The Voice:''''' A squad of Sisters of Silence investigate a Black Ship that became derelict in the Warp. Turns out [[Blank|the youngest of the squad]] in the future [[Wat|used sorcery]] to beam back her consciousness through time onto some psykers on the Black Ship. She <s>successfully warns the squad about Horus's Rebellion </s> is executed by a hard-core Sister for breaking her vow of [[Psyker|no funny stuff]].
** '''''Call of the Lion:''''' Half of the Dark Angels are dicks, the other half are not. Totally not foreshadowing.
** '''''[[The Last Church]]:''''' A story about the Emperor destroying one of the churches on Terra during the reunification era in his effort to wipe out religion. The Emperor and the priest of the church have an enlightening conversation about what the Emprah's trying to accomplish. The conversation ends up with the priest accusing the Emperor of being a hypocrite, with him decrying that he's no different from the old warlords who waged crusades and holy wars in the past to push their own agendas on other people. The Emperor reveals himself as the very god the priest was worshiping, and nearly convinces him to stand by his side while his soldiers destroy the church. Priest gets cold feet and walks back into the church while it collapses. An end-times alarm clock starts ringing in the ruins.
** '''''After Desh'ea:''''' The War Hounds meet their Primarch. Angron defeats the War Hounds. More specifically, the Emperor just beamed up Angron away from his last stand (rather than, you know, intervening with his Custodes or his fleet), leaving Angron pretty pissed. [[Kharn]] is a pretty great guy to be around, and pulls his femurs out of his lungs quickly enough to establish himself as Angron's best buddy ''after everyone above him in the War Hounds chain of command calmed Angron down as fleshy squeeze balls''.

===Books XI - XX=== 
*'''''Fallen Angels:''''' this sequel to Descent of Angels is actually two stories rolled into one book that never converge. The Lion heads to a strategically important forge world only to find that the magos has turned traitor, then fights a war to reclaim some Ordinatus devices only to hand them to Perturabo to gain his trust, not realizing that his brother has already turned. He's really spergily awkward with people throughout. Meanwhile, [[Zahariel]] and Luther encounter a daemon cult on Caliban and get into shenanigans with [[Cypher]], setting the stage for the rise of the [[Fallen]] as they reject the Lion and the Emperor due to misplaced patriotism for Caliban and butthurt over feeling abandoned by their primarch.
*'''''A Thousand Sons:''''' Part 1 of the Battle for Prospero. Runs through the Great Crusade where Magnus discovers the webway, but his Father already knew about it. Then the Edict of Nikaea where Magnus gets all passionate about not restricting psychic powers, then to Horus's vision quest where Magnus fails to keep his brother on the right path, then does the WORST thing possible by forcing himself through the palace psychic spam filter, breaking the Golden Throne in the process. Space Wolves come knocking shortly after. Tragedy ensues and the Thousand Sons become a thousand sons all over again. Ahriman starts writing his Rubric.
*'''''Nemesis:''''' [[Malcador the Sigillite]] invents the [[Officio Assassinorum]] Execution Task Force and sends six assassins to kill Horus. They fail because Horus sent a look-a-like, but in the process slay a shapeshifting daemonic counter-assassin sent by Erebus. While it is a decent book and we learn a lot, it didn't contribute much to the overall plot. On the more [[rage|vitriolic side]], the writing is a bit underwhelming in places; highlights include calling a pariah a psyker, another pariah with a contrived possession, and Horus uttering one of the most cliché one liners out there.
*'''''The First Heretic:''''' [[Lorgar]]'s turn to get a backstory and generally considered one of the better books in the series. While you may never sympathize with them, this book really lets you understand why The Word Bearers fell to Chaos, rather then being the "CHAOTIC EVIL MONSTERS" they are portrayed in the rest of the series. Feels less rushed than ''[[Fulgrim]]''. Goes from Monarchia to a bit of soul searching in the Eye of Terror and discovers Cadia. Leads up to Istvaan V and the immediate aftermath. Significant subplots revolve around the inception of Possessed Marines, and what happens to the [[Adeptus Custodes|Custodes]] babysitters watching over the Word Bearers, and how the protagonist [[Argel Tal]] gets into a tragic bromance with the Custodes leader.
** '''''Aurelian:''''' A limited release short story until an ebook was published. The plot bounces around in between a number of moments in Lorgar's history up to the prelude of the Shadow Crusade. One narrative involves how Lorgar's brothers still treat him like shit, especially when he's the only one who sees through Fulgrim's possession, and ends with Horus sending him to fuck up Ultima Segmentum and handing him Angron's (figurative, [[/d/|not literal]]) leash. The other narrative takes place in the 40 year gap in ''The First Heretic'', where Lorgar makes a pilgrimage into the Eye of Terror with a Daemon Princess as his guide. They come to a dead Crone World where he puts a dying [[Avatar of Khaine|Avatar]] out of its misery and he's told that the Eldar panicked rather than embrace Chaos during the birth of Slaanesh, which is what caused them to nearly die out; the daemon prince(ss) tells Lorgar the same thing is happening with humanity during the Heresy, how Chaos really wants a [[A Game of Pretend|symbiotic relationship with humanity rather than to conquer it]]. In the middle of this, Khorne decides he's had enough of this talky wordy shit and sends [[An'ggrath]] to make things more exciting, and Lorgar narrowly beats him. Then Kairos Fateweaver comes and "tells" him about Calth and his relationship with Guilliman and his upcoming war with him in the most confusing as fuck discussion ever. The truth of most of the things told to Lorgar are left ambiguous, because, well, Fateweaver; but also Chaos has a lot riding on the Heresy coming to fruition for reasons left not entirely explored.
*'''''Prospero Burns:''''' Part 2 of the Battle for Prospero. A civilian archaeologist named Kasper Hawser (as typical for GW authors flexing obscuring knowledge, not very subtle given that the real Kaspar Hauser was a liar from 1820s Germany, who thrived on getting public attention and [[Derp|accidentally killed himself]] when public attention faded) hangs out with a company of the Space Wolves, where we learn a lot about their culture and attitudes. Turns out that Chaos infiltrated everything, so the outcome of Nikaea was practically rigged. The civilian himself even turns out to have been an unwitting spy for Chaos, but the Wolves knew anyway and didn't give a shit (they thought he worked for Magnus).
* '''''Age of Darkness:''''' A short story anthology.
** '''''Rules of Engagement:''''' Roboute lets one of his commanders lead in a series of wars that didn't really occur, and we get the best line ever said in regards to the [[Codex Astartes]]: despite the fact it does cover a lot, it's not meant to be followed biblically <s>which is a load of bull given that the Codex lets said commander win all the wars in the most efficient way possible while blindly following it and only failed in the last battle because he was in a war game against Guilliman</s>. (See the quote on the page on the Big Book of Astartes). The Imperium Secundus shows up, making for another bizarre plot element that ruins the series without adding anything.
** '''''Liar's Due:''''' You know those memes on how the [[Alpha Legion]] causes mass paranoia without actually involving any Astartes? Those aren't just memes. An Alpha Legion serf arrives on a agri-world and turns its allegiance to Horus just by hacking all their interplanetary communications.
** '''''Forgotten Sons:''''' A [[Salamanders|Salamander]] and a grumpy ol' [[Ultramarine]] are sent in opposition to one of Horus' iterators to convince an industrial-militant world which side to side with. They almost side with Horus before the Warmaster's agents [[Exterminatus|wreck shit]] for the lulz and to send the message that neutrality will be punished. The [[Iron Warriors]] were doing weird shit on that world for years beforehand and were probably a bigger factor than the lulz.
** '''''The Last Remembrancer:''''' Horus sent the one last remembrancer he had stored up as a gift to Dorn. Instead of in a box (or eight or some shit like that), it was the [[Dan Abnett]] of his day telling Dorn that the grimdark galaxy was grimdark. Also that the Emperor's vision of a galaxy of peace, unity, prosperity, and fluffy bunnies built up without any more grimdark attached than was strictly needed probably wasn't very likely before any shit hit any fan either way. Also, Iacton Qruze makes his first appearance since forever, but nobody gives a shit. Dorn says it's all lies and enemy propaganda before executing said remembrancer and torching all his ramblings.
** '''''Rebirth:''''' Magnus's absent fleet from the Burning of Prospero comes home and shits a brick. The last known surviving squad of Thousand Sons outside of the Planet of the Sorcerers gets beaten up and they slowly figure out it was the Space Wolves who shit on Magnus's <s>parade</s> world and is stalking them. One plot twist later, most of them are dead, the last one decides he's gonna rebuild everything, with a few scant hints that his flesh-change genetic flaw will [[Blood Ravens|shift into kleptomania]].
** '''''The Face of Treachery:''''' The tie-in and conclusion of the audiodrama featuring the Raven Guard after Istvaan and the prequel to Deliverance Lost. After getting fed up with Corax [[troll]]ing Perturabo for a bit too long, Horus sends Angron in to finish the job but Corax's cavalry arrives to troll Angron by getting the loyalists the fuck out of there. We also learn that Corax has a supersekrit psyker ability which lets him roll a natural 20 on stealth checks no matter how ridiculous it would be, and that the Alpha Legion ''once again'' can out-troll everybody when they fuck things up for the World Eaters (they let the World Eater commander think he was in command then blew his brains out when he tried to actually command). Ends with an transitory bit into ''Deliverance Lost''.
** '''''Little Horus:''''' Little Horus Aximand is struggling with the PTSD he got when he killed Loken and Torgaddon with [[Abaddon|Abby]]. Abby and Little Horus have a discussion (we mean Horus Aximand, not when Primarch Horus was sodomizing Abaddon again) about restoring the Mournival. A couple war scenes later, Little Horus learns the hard way that the White Scars are pretty badass, but his PTSD starts acting up again and he gets his face shaved off before the White Scars are driven off. Little Horus realizes the PTSD he has ultimately stems from that time he helped kill Loken and Torgaddon, and gives a diatribe about how things like "change", "mood swings", and "hallucinations" are suited to his melancholic nature, saying things like "it's perfectly natural", "I'm fine, everything's fine. Everything is perfectly, absolutely fine", and "Therapy is for the weak. I'm fine". After the Mongolian shave, he gets his face reattached and ends up looking even more like Big Horus in the deal.
** '''''The Iron Within:''''' Some pretty bro-tier loyalist Iron Warriors build a fortress hanging from a cave over an ocean of promethium in a hellhole of a world (giant cavern system & acidic atmosphere), and one of Perturabo's traitor Grand Companies come knocking to demand that they hand over the house keys. The loyalists give them a fuck-you in the form of a Dreadnought. A few melodramatic and horrific but generic war scenes later, and they get overrun (after a full year of siege thanks to the genius of a certain [[Barabas Dantioch]]), drop the fortress from the ceiling onto a Titan, and get the hell out of there by hijacking one of the Iron Warriors warships via teleportation. An Ultramarine bigwig was there to bring the loyalists home, informing them that [[Skub|Guilliman was fortifying Terra]] and he needed good siege workers to stall the traitors then to fortify Terra. While loyalist Iron Warriors were pretty cool, the story itself was pretty forgettable and left some open questions like whether the continuity errors were the result of "faulty astropathic communications" (see Outcast Dead) or if the Ultramarines were trolling the Iron Warriors to join with the Imperium Secundus; also why the Iron Warriors were determined to take a hellhole at an immense expense of people and materiel, including Titans, while they could have just said "fuck yo shit!" and left a fortress with no space or warp conveyance and arguably little strategic value in itself in the middle of nowhere alone. It mentions a few times that it looks really bad for a rebellion trying to gain initiative when a mere captain of their Legions tells their Primarch "fuck off, imma keeping this fortress & resources for the Emperor!" The message behind it being if you can't even control your own men, maybe this rebellion thing needs a rethinking, because hearing Horus can't even take this shitty outpost in the middle of nowhere might be bad press when he's going to Terra.
** '''''Savage Weapons:''''' A good story written by [[Aaron Dembski-Bowden|ADB]]. Dark Angels are hunting down the Night Lords who are fucking with Forge Worlds, but the Night Lords are staying a step ahead of them, much to [[Rage|the Lion's frustration]]. After being advised by Horus to pass along a message, Curze asks the Lion to meet up face-to-face on Tsagualsa. When they talk, while what they say to each other is offscreen, it's implied Curze told Lion about the Fallen Angels and that Horus knew about their impending betrayal. Lion decides nobody is going to give him shit about being a rumored closet traitor, and the ensuing fight proves that Jonson is a <s>badass among primarchs</s> cheating bitch (he initiated the fight, ending the parlay, by getting in a cheap shot when he plunged his sword into Curze's heart), until Curze, ignoring a terrible wound even by Primarch standards, whoops that ass and goes to his old fallback of strangling a fucker. Their respective honor guards go at it in the meantime, showing [[Sevatar]] is a badass among Space Marines. Things end up in a draw, leaving things open for a new plotline within the Heresy, the ''Prince of Crows'' novella being the next.
*'''''The Outcast Dead:''''' A mess of continuity errors, at least when compared with the rest of the series, the other authors later claimed all the errors were absolutely intentional and a result of the messed-up nature of Warp-based communication. [[derp|''Riggggghhhhtttt.'']] More importantly: shortly after the start of the Heresy an astropath has routine nervous breakdown and is returned to Terra to get [[Witch Hunters|some R&R]]. What really ends up happening is that he gets there in time for [[Magnus]]'s astral body to reach Big E to warn him of Horus' betrayal, and the fuckhueg psychic shock of course dicks with the Astropath HQ compound something mighty. In the confusion and assloads of psychic phenomena that followed, the astropath gets implanted with a message for somebody regarding the war, but his PTSD keeps him from knowing what the hell it is or who it's for. The Custodes come in and tell him ''"[[Anal Circumference|Ve haff vays of making you talk.]]"'' and hand him over to a pair of [[Inquisition|kind counselors]] who torture the poor man half to death. After a time, he gets busted out in the nick of time by some convict Space Marines from the Traitor Legions. Why they do this is explained by the Thousand Son sagely stating "Just because" to the others. They name themselves the eponymous Outcast Dead and try to get the hell off of Terra. Amusingly, none of the escapees is very happy at the prospect of the Heresy but they are all [[rage|slightly miffed]] at being treated like shit by the Custodes just because of the Legion they belong to. Other subplots revolve around a psyker congregant at a slum church near the Imperial palace; a samurai witch hunter (no, really); '''''fucking [[Thunder Warriors]]'''''. Best bits are <s>[[Rip and tear|an unarmed, unarmored World Eater ripping a Custodes' spine out through his chest]]</s> the portrayal of the Emperor playing chess in dreams, revealing that the message is about his upcoming bitchslap from Horus.
*'''''Deliverance Lost:''''' [[Corvus Corax]], having just escaped from Istvaan V, decides to go ask daddy for a handout to get his Legion back on his feet, and gets the mother of all genetech to do it, though he has to do a bit of legwork to get it. Meanwhile, a bunch of faceless Alpha Legionnaires (okay, they do have faces, they just originally belonged to some Raven Guard) infiltrated Corax's Legion at Istvaan and are doing recon and intelligence gathering waiting for [[Omegon]] to give the go-ahead to fuck shit up. Corax, meanwhile sets up new geneseed methods that bring up new recruits to battle-ready marines ''in fucking hours'' with the potential to conscript literally anybody willing to become a Space Marine. The Alphas decide this probably isn't in their interest, and sabotage the new geneseed by tainting it with ''daemon blood'', turning second- and third-batch new Raven Guard into the twisted monsters we know Corax ended up with. In one of the instances of retcon that was actually flavored with [[awesome]] and win, the mutant marines [[Grimdark|were still sapient]] but were left to fight on in the Emperor's name. After staging a mass insurrection on Deliverance's parent world with the help of some old guilders Corax ousted and the Dark Mechanicum, Omegon gets ''more'' Alphas infiltrated into the Raven Guard for the endgame: steal the genetech, kill some Raven Guard, get the fuck out before anybody knows what the fuck just happened in here. A couple cockups along the way leads to the Raven Guard getting wise and isolating out the Alphas. The end of the novel was like a swingers' party at a retirement home: everybody got screwed (even ''Horus''), nobody got what they hoped for (except for [[Omegon|the really deviant bastard]]), and all-around the reproductive material was a waste. Corax shut down his hothousing method and starts fucking with the Traitors even at reduced numbers. The book ends with Alpharius-Omegon deciding that while their plan for saving the galaxy was still good, they decide working with Xenos isn't for them.
*'''''Know No Fear:''''' The book that made the Ultramarines (of all people) cool again. The Ultras are still ignorant about Istvaan and the civil war erupting around the galaxy, and are mustering at Calth with the Word Bearers [[troll|on orders from Horus]] to go kill some Orks together as a conciliatory gesture. They're in for a surprise: the Word Bearers, while happy as hell to get revenge, are really trying to [[Eldrad|dick over]] the Ultramarines to keep them out of the Heresy if not destroy them outright. What happens next is the Word Bearers arrange some "accidents" using sorcery and good ol' fashioned treachery to fake a monumental fuckup in the shipyards that leaves the Ultramarine forces blind, deaf, and crippled. They use the confusion to say that the Ultras are ''still'' fucking them over, and take the chance to open not only a can but entire cases of whoop-ass on the Ultras. Erebus turns Calth's pole into a screaming hellscape to start up a warp storm while Kor Phaeron oversees the systematic extermination of the Ultramarines and also successfully poisons Calth's sun. Guilliman gets jettisoned into space but survives because [[Spiritual Liege]]. He then leads a counterattack on Kor Phaeron, and while Kor comes ''this close'' to getting a Primarch kill with [[Sorcerer (Warhammer 40,000)|Chaos mindbullets]], in a moment of self-aggrandizement he holds back and tries to corrupt Guilliman with his own dagger-sized '''MURDER SWORD'''. Guilliman calmly tells him "The Codex Astartes <s>does</s> will not support this action" (it was really "You made an error" followed by an explanation of that error, and "but while I'm alive, I can do this") and [[Rip and Tear|rips out Kor Phaeron's main heart with an unpowered Power Fist]]. Kor Phaeron's minions run away with his carcass, allowing the Ultras to retake their space station, which in turn allows Mechanicus plot power, aided by a planet's worth of orbital defense batteries, to bring the ground war back into the Ultramarines' favor. The novel ends with Word Bearers getting the hell out of there and the Ultramarines evacuating everyone they can off of Calth and telling everybody they can't to get underground, transitioning into the Underworld War. Special features of this novel include the Ultramarines finally being portrayed as awesome, Guilliman not being a cock, [[Ollanius Pius]] being the special guest star with his very own subplot, and the Word Bearers having athame blades as special issue, one of which will [[Uriel Ventris|come back later]]. You might notice this summary is pretty spoilerific, but if you didn't know the broad strokes already, you're in the wrong place. While not exactly winning awards on the philosophical or psychological side, the book itself is a genuinely thrilling read that really knows how to keep its tension up, as the main framing device is that of the official records of the Ultramarines Legion with a ticking clock, with T=0 marking the begin of the Assault on Calth and the massive confusion that ensues depsite every single Ultramarine being surrounded by more red flags than you could find at a Communist party meeting.
*'''''The Primarchs:''''' A novella anthology. As the name suggests, it contains stories featuring Primarchs.
**'''''The Reflection Crack'd:''''' - <s>[[Lucius]] and friends anally rape [[Fulgrim]]. Yeah.</s> While questionable use of a ''pear of anguish'' is featured during a game of "Stab the Fulgrim," the real story is this: Lucius and his buddies are deep into the [[/d/|sickfuckery]] which will come to characterize their Legion, but begin to suspect that Fulgrim might have a daemon in him when he begins acting like not-Fulgrim and uses sorcery. They ambush him and try to exorcise it with pain, because torturing a Slaaneshi daemon will totally work (though they find out that a Primarch can grow back a foot and just about any other wound). Among everything else: [[Fabius Bile|Fabulous Bill]] is still an arrogant dick; Lucius is still a maniacal and colossally narcissistic sick fuck; Julius Kaesoron is still an angry badass; Marius Vairosean is still a sycophantic cunt; and Eidolon was still a self-important, whiny douche, but Fulgrim throws a tantrum and cuts his head off, and there was much cheering from the readers, and that ''plus'' almost certain off-screen fapping among the Legionaries leads into ''Angel Exterminatus''.
**'''''Feat of Iron''''' - [[Ferrus Manus]]'s Legion is trying to off some Eldar on a desert world, but can't find the major Eldar strategic asset because of Spess Elf warp bullshit. A Farseer thinks he can warn Ferrus about the Heresy, and traps him in the webway or some psychic realm for a spirit quest long enough to fight a [[Fulgrim|giant purple snake]] (which is [[/d/|disturbingly appropriate imagery]] when you think about it); and Ferrus thinks it was the wyrm that he killed and gave him his metal hands, but the snake tells him that he must be mistaking it for somebody else. Ferrus kills it, and meets the Farseer who tries to tell Ferrus that he wasn't just being a dick. Ferrus, having too many experiences with Eldar being dicks, knocks some sense into the Farseer, who manages to run just fast enough to avoid getting killed. Ferrus comes back and helps his Legion fight off the Eldar kill the Webway beacon, or whatever the hell it was. In the background of all of this, the Iron Hands, having lost Ferrus, decide to [[/tg/ gets shit done|get shit done]] rather than bitch about their potentially dead father and work to complete the mission despite being weighed down by Imperial Army who are dying of dehydration and heat stroke. The Eldar figure out a way to use storm clouds that make Iron Hands bionics kill their users, and Ferrus has a bitch of an itch around his neck that he can't get rid of. [[Drop Site Massacre|I wonder if that's important]].
**'''''The Lion:''''' - Dark Angels fight daemons and reinstitute Librarians. The Lion teamkills Nemiel for reminding him about Nikaea, ruining all the buildup from the previous two <s>Dark</s> Fallen Angels Books because [[Gav Thorpe]] wanted to prove he's a big boy author who can kill his characters. Then they steal an intelligent super warp engine (instashifts the Dark Angel fleet into the warp without need for a jump point while teleporting itself and the Lion onto his flagship; Lion is capable of talking politely in front of so much power) from [[Typhus]] then set course for Macragge to sort out Guilliman.
**'''''Serpent Beneath:''''' - Alpharius Omegon plots against himself and destroys a facility built around what looks suspiciously like a Cadian Pylon (and said facility keeping the White Scars out of the war), due to [[Cake|an information leak]], and they can't have that. Except than none of the main players are Alpharius or Omegon. And Alpharius and Omegon can't decide if they're secretly working against each other or not. Also: considered to be one of the better works of the series, not only due to quality, but because of the sheer mindfuckery of the plot, keeping entirely within the rationale of the Alpha Legion without any jumps in logic or canon.

===Books XXI - XXX===
*'''''Fear to Tread:''''' Despite being Black Library's most financially successful book ''ever'' and hitting thirteen(!) on the New York Times bestseller list (without Oprah's recommendation, even), many [[/tg/|fa/tg/uy]]s find it a bit ridiculous. Why? Well, there's planets with giant frowny faces inhabited by garbage monsters, ships getting blown up by city-sized rocks launched from the aforementioned planets, a nearly-stereotypically-gay [[Slaanesh]]i daemon that doesn't actually serve much of a purpose in the story, and a villain named the Red Angel despite the fact [[Angron]] already claimed that as a nickname (although he was first introduced in ''Horus Heresy: Collected Visions'', so it's not [[James Swallow]]'s fault). Oh, and Sanguinius acts like an idiot about [[Chaos]] the whole time, which fits the [[fluff]], but come on, how many freaky supernatural signs do you need to see before you decide it's not just foul xenos? In all fairness, of course, ''Fear to Tread'' does have quite a few good moments, especially when it comes to [[Warp]]-related terror. It also has a priceless bromance between [[Horus]] and [[Sanguinius]], not to mention Sanguinius and his Legion get characterized very well. Sanguiniuns and Co end up reaching Imperium Secundus.
*'''''Shadows of Treachery:''''' Yet another anthology. Most of the stories are tie-togethers or "in-betweens", and some are very short.
**'''''The Crimson Fist''''' - A story about two parallel story lines. The first is set during the [[Battle of Phall]], a space battle between the Iron Warriors' entire fleet, and what was left over after a third of the Imperial Fists' fleet was dispatched to reinforce the loyalists going to Istvaan, got caught in a warpstorm and were run "ashore" leaving them drifting and isolated in the backwater Phall system. The Iron Warriors, having the advantage of knowing what the hell is going on and having the powers of Chaos to guide them through the storm, show up at Phall and wreck shit for some good old fashioned revenge. Despite having the superior numbers, more and bigger guns, suicidal expenditure cohorts, and the power of a raging hateboner, the Iron Warriors were losing to the Imperial Fists's superior maneuverability and [[Alexis Polux|Captain Polux's]] protagonist power. Eventually, the Fists get the order and window to withdraw to Terra, though turning tail would put their fleet at a huge disadvantage. Given the choice between blind obedience to his father or carrying on with the battle they were winning, Polux chooses the former and takes his Fists back to Terra, but ends up in the Imperium Secundus instead. This was also one of the first solid depictions of Perturabo, and clearly the worse of the two as he's shown to be nothing more than an abusive, cold-hearted Saturday morning cartoon villain with rage issues and the depth and complexity of a kiddy pool. The second story line follows [[Sigismund]] as he follows Rogal around the Imperial Palace after deciding to stay home, even though he was ordered to command the same fleet trapped at Phall, but delegated it to Polux's predecessor. The twist is that he met Euphrati Keeler, had a spiritual experience when they spoke, and felt that he would be needed more at Terra instead of as a drifting corpse permanently lost in orbit around some backwater, and so handed off the job of commanding the fleet. When he eventually opened up to Rogal about this, it got him in trouble. See, Rogal was still one of the [[Imperial Truth|stupid atheists]] at this point, so he disowned Sigismund because he thought "serving a higher purpose" was arrogant and got in the way of doing his job. This left Sigismund feeling really sad and pissed off, thus was his start of <s>darkness</s> daddy issues. [[Black Templars|Really pissed off and bad ass daddy issues.]]
**'''''The Dark King''''' - A look into the head and story of Konrad Curze during the events leading up to the Dropsite Massacre. It shows that, even if you buy that Curze was a [[Lawful Evil|murderous paladin of justice and order]] rather than just a [[Chaotic Evil|deranged serial killer]], he's pretty fucked up in the head and lives with the knowledge of his demise haunting him (which isn't that great for what little sanity he has left). It also involves him beating up Rogal Dorn, killing some Imp Fists and Emp's Children terminators <s>with his more advanced suit and built-in vox jammers</s> [[Rip and tear|with his bare fucking hands]], then blowing up Nostramo.
**'''''The Lightning Tower''''' - Basically, 20 pages of Rogal Dorn. The first 10 is him being sad about ruining the Imperial Palace as a grand piece of art by fortifying it into a coldly functional fortress. The next 10 is Rogal having an existential monologue, then a conversation with Malcador all about why he doesn't know why Horus declared war on the Emperor and is afraid to find out why in case it makes sense. Malcador ends up knowing at least a little about Chaos and somehow got his hands on a tarot deck Curze used throughout his life even up to the close of ''The Dark King''. (Don't ask how he got them. Really.) Also that (*Name Drop*) the Lightning Tower is the important card that comes up, signifying [[Siege of Terra|a destruction of fortifications]] and/or [[Imperium of Man|a change of thinking brought about by sacrifice]].
**'''''The Kaban Project''''' - Right before Istvaan, techpriest Pallas Ravachol is working on a top secret "Kaban" robot project on Mars and realizes that the project has achieved sapience, and is in fact a form of full AI. Though he genuinely befriended the Kaban machine, Ravachol complains to boss Magos Chrom that working on an AI is both highly illegal and insanely dangerous. Chrom tells Ravachol not to be such a pussy since Horus himself gave the OK, and after some deliberation has a death squad waiting to escort Ravachol off site the next morning. Ravachol, thinking there were few ways this could end well, makes a break for it and flees for Magos Malevolus's forge, hoping to get somebody with some clout to reveal that his old boss and Horus were up to something bad. On the way, he spends time running away from a latex-clad sadist babe who persistently chases after him; since she's an AdMech equivalent of a Death Cultist assassin, this is a ''much'' better idea than it sounds. When he gets to Malevolus's forge, Malevolus distracts him with a legion of shiny Mk6 suits of Marine Power Armor long enough to drop the bomb to drop that they were for Horus. The latex-clad babe catches up to them both, and the techpriest flees again, only to be puzzled why Malevolus and the assassin are letting him run. As he gets out the door, he meets the Kaban machine, <s>who realizes friendship was most important thing, the Kaban decides to side with the good guys, and the day is saved.</s> Chrom told the Kaban Machine that it and Ravachol simply can't be friends for realsies because of the rules and stuff, and taking up with Horus was a great idea. The Kaban Machine, not understanding how humans work nor '''The Power of Friendship''' didn't know any better than to agree, and kills Ravachol right on the steps of Malevolus's forge. The end. An okay story, somewhat generic feeling prose. More of a who's who of the Dark Mechanicus during ''Mechanicum'' and telling where the hell that Kaban machine from the same book came from, and how they seduced an AI into Chaos worship.
**'''''Raven's Flight''''' - A bridge between Istvaan V and ''Deliverance Lost'', also a companion story to the Raven's Flight audio drama. The story tells how Commander Marcus Valerius of the Imperial Army is stationed on Deliverance and keeps having recurring nightmares which is causing him worry about Corax. Commander Branne of the Raven Guard's garrison on Deliverance, is getting tired of how the Legion's pet human won't stop bitching about it, and decides to take Valerius out on a trip in the battle barge to Istvaan just to show him that everything is just fine. Meanwhile, Corax and a relative handful of surviving Raven Guard are fighting a guerilla war against the traitors, trying to stay one step ahead of the Iron Warriors and then the World Eaters. In between skirmishes Corax spends a few thoughtful moments feeling bad about his Legion and the state of the Imperium now that things have gone to shit.
**'''''Death of a Silversmith''''' - The title says it all. A silversmith attached to the 63rd Expeditionary Fleet is tasked with making four rings for the Mournival, after that he makes tokens (for the warrior-lodge, but he doesn't know that) and then gets his windpipe crushed to make sure word doesn't get out about the tokens. The story is seen from the perspective of the silversmith who describes his life up until the point where he's lying on his own floor slowly suffocating to death. Ultimately it is kind of irrelevant, but the lore nerds or people who have been paying attention might find it interesting. At barely 20 pages long, you might as well read it anyway.
**'''''Prince of Crows''''' - A novella featuring the Thramas Crusade as viewed by First Captain [[Sevatar]] of the Night Lords. With the Night Lords's forces all but shattered by the Dark Angels, Curze in a coma and nearly dead, and the Dark Angels's fleet in pursuit, Sevatar has to knock some heads for the Night Lords to get their shit together to reorganize and rethink strategy. It's essentially about showing the fractures in the Night Lords Legion. As most stories written by [[Aaron Dembski-Bowden]], it's pretty good.
*'''''Angel Exterminatus:''''' [[Perturabo]] just finished [[skub|fucking up (or being fucked by)]] some Fists, and [[Fulgrim]] finds him to polish off a plot hook from ''The Reflection Crack'd'' and recruit Pert for an expedition into the Eye of Terror because a renegade Eldar said he knows where to get ''the good shit'' (the eponymous Angel Exterminatus). Fulgrim wanted to make a show out of delivering exposition, and he had Pert use his skills to build a stadium and went storyteller mode; then the moment was killed when a Shattered Legion detachment composed of Iron Hands and a Raven Guard commando sniped Fulgrim (he got better). Of course, Pert took the moment to remind himself that this is why he can't have and [[Rage|won't ever have]] nice things. Thinking that Fulgrim had the scent of a powerful artifact or a superweapon, and seeing that Fulgrim was becoming the Primarch equivalent of a crack addict member of the Jersey Shore and his legion wasn't looking much better, Pert decided to play it safe by tagging along and making sure Fulgrim wouldn't break anything. On the way, a different Eldar scholar came to the Shattered Legion, telling them that Fulgrim and Pert can't be allowed to get to the Angel Exterminatus, or [[Daemon|Bad Things (Warp-registered trademark)]] will happen. Well into the journey into the Eye, the Iron Hands's resident mad scientist accidentally gives away their location, and the Emperor's Children and Iron Warriors decide to throw a boarding party. After a few pages of pulse-pounding action, Pert says "fuck this" and leaves as the Iron Hands' same mad scientist overloads the engines and does a [[Battlefleet Gothic|mother of a ramming maneuver]] which kills an Emperor's Children ship. (Pert was getting sick of Fulgrim's shit at this point, so he decided not to let them know, leading to the loss of the ship and thousands of casualties for Fulgrim.) When they finally get there, they find a [[Crone World]] covered in ruins and occupied spirit stones being held in orbit around a black hole. Some wraithbone constructs pop up and Pert and Fulgrim have to fight to the heart of the planet to get at the Angel Exterminatus. On the way, Pert kills their renegade Eldar because he was a lyin' bitch. When they ''finally'' get there, surprise! Daemon Primarch Fulgrim is supposed to be the Angel Exterminatus, and he betrays Pert (a bauble Fulgrim gave to Pert at the start of the book was a vitality-leeching thing), and they start the ritual which would sacrifice Pert to turn Fulgrim into a Daemon Prince. Then the Shattered Legion crashes the ceremony and assists the Iron Warriors since it's clear they weren't working with the Emperor's Children anymore. Pert kills Fulgrim but it doesn't count since Fulgrim's mortal essence works just as well as sacrifice. He goes full Daemon Prince despite a generous helping of Thunder Hammer to his [[gay|pretty face]], breaks every spirit stone on the planet, and disappears with every last one of his sick fucks. The Eldar scholar helping the Shattered Legion throws a bitch fit, revealing that both scholars were Dark Eldar who had cut a deal with Fulgrim (help him become a daemon and they get assloads of spirit stones to fuck with), and he had made sure that the Shattered Legions were there to put a wedge in that deal because... reasons. The Shattered Legion gets the hell out and the Iron Warriors try to GTFO as the planet starts to fall into the black hole. The book ends with Pert, [[pretend|being a wise man]], ordering them to reverse course and fly right into that fucker. (It works out for them in the end.) Subplots include a lot of buildup for McNeil's Iron Warriors stories, the Shattered Legions' feelings on trying to unfuck an irreversibly fucked situation, and a tense story of two Imperial Fists as they try to survive Fabius's turning them into mutants (which actually had a poor payoff). Despite being overall good, it's a bit of a skub novel because the depiction of Perturabo is so different from expected; rather than being the bitter [[RAGE|Rage]] machine from every other depiction, he's a quiet [[Neckbeard|nerd who plays with toys as a hobby]] but with muscles. The ghosts of Eldar's Aspect Warriors and Wraith-Constructs inside a planet left inside the Eye of Terror, the first death of Lucius at the hands of a Mary Sue despite previous claims that he was undefeated during the Heresy and his unexplained first resurrection, and an Iron Hands legionnaire somehow being immune to sonic weapons by being deaf is canon rape on par with C.S. Goto. And worst of all, a rotating Shadowsword turret.
*'''''Betrayer:''''' Lorgar and Angron rampage over the Ultramarines' 500 worlds. Lots of references to Angron's past and his Butcher's Nails killing him slowly. Turns out one of the Ultramarine worlds was his own homeworld, so he destroys it and Lorgar makes him into a daemon prince. Also remember the ''Furious Abyss''? Lorgar has two more. When not showing off the two traitor primarchs, the book focuses on Khârn and Argel Tal being totally bro-tier until that bitch Erebus decides to intervene and becomes a team-killing asshole. Why Erebus isn't modeled with a long mustache fit for twirling is beyond us. The guy also resurrects the Word Bearers' waifu, apparently turning her into a perpetual in the process, only for her to be <s>kidnapped</s> rescued by the Cabal soon after. She is never seen again in the rest of the series. Best known for containing Angron's dressing-down speech toward Guilliman having it easy since birth while Angron had a pretty shit life from day one.
*'''''Mark of Calth:''''' Another set of short stories, though all focused on the [[Ultramarines]] or the [[Word Bearers]].
**'''''Shards of Erebus:''''' - We find that [[Erebus]] broke the '''MURDER SWORD''' into eight daggers/athames and shared them with his bros. Also shows how he returned to Davin to learn how to teleport with the '''MURDER SWORD''', then killing the priestess that helped him turn Horus. She somehow wins because she served Chaos before dying which pisses Erebus off.
**'''''Calth That Was''''' - The story focuses on an Ultramarine Captain and Co. and on a Word Bearers commander and his Dark Apostle. Keeps bringing up what Calth used to be like. Longer-than-the-rest-story short, Word Bearers try to Nurgle everyone, and the Ultramarines save the day in the nick of time. After all, THE GREATEST OF THE-{{BLAM}}
**'''''Dark Heart''''' - A young Word Bearer is interrogated by Kor Phaeron after he ended up killing his mentor with dark powers (turned him insta inside out). A kind of nice story that shows the <s>degradation</s> enlightenment of the Legion.
**'''''The Traveller''''' - A spacedock traffic controller survives the destruction of his star fort, and the fatal crash of his escape shuttle before ending up in a small underground arcology with other human survivors. Imperial cultists believe he is blessed, and when he starts hearing whispers and seeing unbelievers they start rounding everybody up for execution. Everybody gets slowly executed till he's the last one left. He learns he's been possessed and reveals to an Ultramarine that he was was infected by the vox from the ''Campanile''.
**'''''A Deeper Darkness''''' - An Ultramarine has a hard-on for a certain Word Bearer trolling him. Hunts down said Word Bearer into a cave system with a team of soldiers and Spess Merheens. Word Bearer trolls them by summoning a Gorgon. Ultramarine wins by tricking the Gorgon into looking at its reflection.
**'''''The Underworld War''''' - A story that has little to do with the actual Underworld War. It features a Gal Vorbak who sees the attack on Calth as a clusterfuck of fail. Has a plot-twist ending... turns out Daemons give visions of the future to potential Gal Vorbak, and said Gal Vorbak was given a vision of him not abandoning his fallen brothers on Calth. The Daemon doesn't have time for that shit so it lets him die during his transformation, much to the distress of the still fairly bro tier [[Argel Tal]] who is soothed by the honeyed words of [[Lorgar|did nothing wrong]].
**'''''Athame''''' - A narrated story of the history of a knife, though not one from the '''MURDER SWORD'''. That's about it... totally... right? Wrong. The small sacrificial knife that Ollanius found was carved on Terra for a benign ritual, stolen by an evil Perpetual who was killed by ''the Emperor'' in medieval times, found in an archeological dig by Kasper Hawser, and went on other crazy murder-adventures, all while having rudimentary sentience.
**'''''Unmarked''''' - Ollanius Pius and friends are traveling through time and space using the athame from the previous story. We learn a lot more about Oll's past, going into detail about his offhand mentions that he was one of the Argonauts and that he served in the First World War and the First Gulf War. It's based as all fuck and written by [[Dan Abnett]], so don't miss it. Also features Ol' Oll's much, much earlier encounters with the [[Emperor|big daddy E]] in flashbacks and kinda proves O.P. Diddy right in his contention against Him that faith has power it not directed [[Lorgar|in the wrong]] [[Chaos|places]] and has in fact protected Terra for fuckawatts worth of millennia, and if He hadn't have been such an aspergated edgelord about atheism, more daemons might have been conquered due to the power of 19th century English hymnody with some of the words altered to refer apparently to the very same edgy atheist. Unmarked also features a traumatized but insightful qt3.14 psyker witch.
*'''''Vulkan Lives:''''' What happened to Vulkan after the Dropsite Massacre? He got made Konrad Curze's torture bitch. Plenty of fun with dining implements and an awesome ending involving a hammer to the face. Not one of the best HH Books though is a somewhat necessary read for continuing the plot arc. Remember the Shattered Legions crew from ''Angel Exterminatus''? Now you get a new group that is far more bland and less distinct. John Grammaticus is up to no good (probably), looking for an artifact infused with the Emperor's groovy god juice and there is a Word Bearer who doesn't seem to be buying into the whole "Chaos is so epic and cool" schtick of his legion. The major problem with the story is that, while it is fun reading Curze taunting Vulkan, not much happens in it and it barely affects the stakes or the overall plot to a great degree, except we now know that Vulkan is a perpetual.
*'''''The Unremembered Empire:''''' [[Perpetual|Matt Damon]] killed Martin Luther King. This happens in the book. Also, unlike the cover and synopsis would imply, it's ''not'' about Sanguinius and Guilliman working together to build a back-up Imperium around Ultramar, which leads to the question of ''why that's on the cover?'' No one knows what it is really about, especially the book's description of itself (which describes its ''sequels''). Several things happen in the book and several unrelated subplots collide as several entities are drawn by the Pharos device to Macragge. There are implications that Guilliman's new backup Imperium is starving resources from Terra.
*'''''Scars:''''' Technically the third book of the Prospero arc. The Khan returns to the Imperium after killing Orks left over from Ullanor and can't decide what side to join. Turns his back on Leman Russ during a fight with the Alpha Legion and goes looking for his best friend Magnus, also gets into a fight with Mortarion on the way, also [[The Fallen|half his legion turns traitor]] but turns out it's no big deal.
** '''''Brotherhood of the Storm:''''' Prequel to Scars, shows the White Scars fighting Orks on Chondax.
*'''''Vengeful Spirit''''' Horus goes looking for power to make him equal to the Emperor and the Chaos Gods give it to him by sending him to the Hyperbolic Time Chamber from Dragon Ball Z (kinda). We learn that the Emperor gained his powers after making a pact with the Chaos Gods where they gave him a fraction of their power, then somehow managed to double-cross them in what is quite possibly the most retarded retcon ever introduced in the entire book series. (In all seriousness though, the Chaos Gods have been claiming this throughout the series. It could be the truth or one of their beautifully crafted lies.) Loken comes back. There's also the Knights of <s>Lannister</s> Molech, who fall to Slaanesh through copious amounts of Twincest. Also, if you have been ignoring the audio books, you will be a bit lost at the start of this one. To rectify that, read '''Garro''' and then '''The Silent War''' books from further down this list, before you read this book.
*'''''The Damnation of Pythos''''' A Lovecraftian Horror story disguised as a Horus Heresy story. Has the most grimdark ending of the series thus far, up there with Dead Men Walking. Adds just about as much to the overall series as ''Furious Abyss'' did, but is actually pretty well written (unlike "Furious Abyss"). To cut a long story short, daemons take over a world in the Pandorax system, capture a starship, and use it to start ferrying cultists from place to place. The book also has some crossover with 40k and the Pandorax Campaign.

===Books XXXI - XL===
*'''''Legacies of Betrayal''''' Another anthology, though this time it's a bit of a cheat; they just consolidated several pre-existing stories and some of the the novellas but also included print versions of audio books.
**'''Brotherhood of the Storm''' - see above
**'''Serpent''' - A really short and out-of-place story about a Davinite Priest.
**'''Hunters Moon''' - Originally an audiobook involving peasant fishermen rescuing a crashed Space Wolf who is running from the Alpha Legion after killing Alpharius. It obviously doesn't end well.
**'''Veritas Ferrum''' - A prequel to "Damnation of Pythos", about an Iron Hands starship escaping (against their better nature) from Isstvan with some survivors.
**'''Riven''' - An Iron Hand from the Crusader Host is sent by Sigismund to look for some of his brothers, scattered after Istvaan V. He finds one suspicious-looking group and discovers that they use forbidden technologies to fight traitors even after death.
**'''Strike and Fade''' - More survivors of Isstvan, though this is about Salamanders just killing time (and Night Lords) whilst they wait to be rescued.
**'''Honour to the Dead''' - An Ultramarine squad fights its way through Calth with a innocent woman and child trying their hardest to follow them to safety, while loyalist and traitor Titans punch each other's faces in the background.
**'''Butcher's Nails''' - A good one to read: Angron & Lorgar go on the Shadow Crusade and come to an understanding whilst fighting Eldar. It is also a prequel to "Betrayer".
**'''Warmaster''' - Horus considers how much of a badass he is while chatting with Ferrus Manus's skull and complains about how all the primarchs that sided with him are [[Perturabo|dickheaded]] [[Mortarion|edgelords]] or [[Konrad Curze|batshit]] [[Angron|lunatics]], while the cool guys like Sanguinius and Guilliman are still loyal to the Emprah.
**'''Kryptos''' - Somewhere in the Galactic East (either Thramas Crusade or Imperium Secundus), Nykona Sharrowkyn and company go kidnap a warp code interpreter that will let them intercept garbled enemy communications. Prequel to "Angel Exterminatus".
**'''Wolf's Claw''' - Bjorn the Fell-Handed needs a replacement arm but the Iron Priests are too busy; he happens to find a nice fancy relic one just lying around.
**'''The Divine Word''' - Marcus Valerius (army commander from Raven Guard story arc) receives some prophetic dreams and subsequently prevents an Alpha Legion diversion. It serves as his final push to join the Imperial Cult.
**'''Thief of Revelations''' - After Prospero, the Thousand Sons need something to stop all their rampant mutation, so Ahriman goes to ask why Magnus has locked himself away. He's got bigger things to worry about and is looking across time and space for key events for future [[Just as Planned]] manipulations.
**'''Lucius the Eternal Warrior''' - After his first death ''(and unexplained resurrection)'' at the hands of Nykona Sharrowkyn, Lucius has somehow abandoned the Heresy and goes to the Planet of Sorcerers to fight a duel with the bestest Thousand Son swordsman (cause he cheats and reads your mind to see what you do next) and ends up meeting Ahriman. [[wat|Uh-huh...]]
**'''The Eightfold Path''' - Kharn and the World Eaters realize that too much rip and tear is leading them [[Khorne|down a damning path]], but they're already too far gone.
**'''Guardian of Order''' - [[Cypher]] and [[Zahariel]] discover that the Ouroboros (banished in Fallen Angels) is coming back.
**'''Heart of the Conqueror''' - Angron's Navigator gets a bit uppity about being made to turn traitor, despite having been picked for the job as the angry man's chauffeur by the Emperor himself. Blams herself during mid-warp transit with not-fun results for flagship.
**'''Censure''' - Aeonid Thiel is killing time and Word Bearers in the Underworld War on Calth, writing notes about it on his armour. Said notes will eventually get written into Guilliman's draft of the [[Codex Astartes|Codex]] on the subject of killing Word Bearers (because it's that damn important to kill Word Bearers). Goes on a buddy cop adventure with an army trooper. Thiel eventually gets bored and goes back to Macragge in the end.
**'''Lone Wolf''' - Bjorn has lost all of his squad, but is now such an awesome badass that he can solo Bloodthirsters.
*'''''Deathfire''''' - "vUlKaN lIvEs" What the Salamanders have been saying since Isstvan is true: Vulkan lives! Well now he does. Basically a bunch of Salamanders take his body from Macragge to Nocturne (with some side help from didn't-ask-for-this Magnus) and throw him into Nocturne's largest volcano, and lo and behold he comes back to life, making that entire plotline pointless. Still has the fucking Fulgurite in his chest, though. TL;DR: https://www.youtube.com/watch?v=M7nzml-zZ9M
*'''''War Without End''''': Anthologies Without End.
**'''The Devine Adoratrice''' - Prequel to "Vengeful Spirit" shows that House Devine was rotten to the core long before the coming of Fulgrim.
**'''Howl of the Hearthworld''' - Space Wolves get sent to Terra to watch over Rogal Dorn so he doesn't start using psykers; it's a pointless task and everyone involved knows it. Also offers insight into the Wolves' naming conventions.
**'''Lord of the Red Sands''' - During Istvaan III, Angron indulges himself in some philosophizing about the nature of his rebellion and what is good cause while butchering his own sons. I swear, I'm telling the truth.
**'''Artefacts''' - On his way to Istvaan V, Vulkan decides that all of his artefacts should be destroyed to prevent them falling into the wrong hands. His forgemaster intervenes and persuades him to keep at least some so Vulkan grants him the right to choose seven items to preserve and give him the title of Forge Father, keeper of these artefacts.
**'''Hands of the Emperor''' - Depicts one typical day of the Adeptus Custodes through eyes of their newly appointed Master of the Watch, including colossal orbital plates invading Imperial Palace and Custodes and the Imperial Fists being stubborn assholes even when facing battle with each other at the heart of the Imperium, never-ceasing Blood Games and bureaucratic and diplomatic hell wrapping all that entanglement.
**'''The Phoenician''' - A dying Morlock witnesses the final duel between Ferrus Manus and Fulgrim.
**'''Sermon of Exodus''' - Another prequel to "Damnation of Pythos", explains the appearance of the huge cultists' fleet from Davin in orbit of Pythos. Provides rare insight on the life on Davin and origins of Chaos cults there. Also features really bizarre description of the first Davinite priest, who spent the last several thousand years in the warp.
**'''By the Lion's Command''' - Prologue to "Angels of Caliban". Corswain is tasked by the Lion to hunt Death Guard ships, but is experiencing a severe lack of manpower. After an uneven engagement with Typhon that nearly costs him his life and fleet, he decides to send Chapter Master Belath to Caliban for recruits.
**'''The Harrowing''' - Some random Alpha Legionnaires take over some random Mechanicus ship. Turns out that they are so god-mode that everyone important is their operative, so they meet no resistance at all. The end.
**'''All That Remains''' - A transport ship full of war orphans and Imperial Army soldiers with severe PTSD is lost in space during warp transit. Fear not though, because in fact they are being stolen by one of Malcador's agents for transfer to Titan and induction into the Grey Knights.
**'''Gunsight''' - The Vindicare Assassin from Nemesis is still alive and on Horus' flagship; it's about him spending years waiting for the opportune moment to get a shot, but he starts going mad while he waits. He finally gives up when Horus plucks his killshot from the air and Horus gives him a chaos rifle for his change in loyalty.
**'''Allegiance''' - Revuel Arvida spends some time on the White Scars flagship trying to understand what to do after losing all his Legion. He reflects on his time on Prospero, attends the Khan's trial for the pro-Horus plotters from "Scars", and tries to escape, but in the end he chooses to spend some more time with the Scars.
**'''Daemonology''' - After his duel with Jaghatai, Mortarion tries to interrogate a daemon, which goes as well as you'd expect. Also shows that Malcador and the Emperor planned Nikaea for almost seventy years before it took place.
**'''Black Oculus''' - A Navigator that serves the IV Legion loses his mind after Perturabo drives his ships into the black hole in the center of the Eye of Terror.
**'''Virtues of the Sons''' - Sanguinius foresees that he will not always be in charge of the Blood Angels, but worries about the Red Thirst causing havoc with his sons' futures, so gets Amit to duel Kharn and Azkaellon to duel Lucius in hopes they'll learn something. Azkaellon learns to let the rage out a bit and Amit learns a modicum of restraint.
**'''The Laurel of Defiance''' - Lucretius Corvo (later founder of the Novamarines) and his squad kill a Traitor Titan using only their wits and one meltagun. 
**'''A Safe and Shadowed Place''' - [[Night Lords]] start stabbing each other in the back as soon as Curze goes missing while solo'ing Macragge. It's about a ship floating in the ruinstorm that has just discovered the [[Imperium Secundus|Pharos]] and foreshadows problems for Ultramar.
**'''Imperfect''' - Daemon-Fulgrim has been getting Fabius to clone Ferrus Manus, because the split personality thing makes him feel guilty about failing to turn his brother to Horus's side, but the clones are never quite right and go mental at each suggestion. Fabius also has his own stuff going on.
**'''Chirurgeon''' - Fabius is dying from the genetic flaw that's been killing Emperor's Children since before they found Fulgrim - or not, since he found a way to distill other Marines into drug that keeps the illness at bay.
**'''Twisted''' - Maloghurst solves some routine troubles on the ''Vengeful Spirit'' like persistent petitioners, lack of water, rogue daemons and the Davinite cult plotting to control Horus.
**'''Wolf Mother''' - Right after events of ''Vengeful Spirit'' Alivia Sureka goes searching for her daughter, who was stolen by a Slaaneshi cult that escaped from Molech, with a little help from Severian The Wolf. No, really, she is so badass that Severian doesn't even look like someone superior.
*'''''Pharos''''': Night Lords fucking up the Pharos Lighthouse on Sotha. Sanguinius eventually grows some balls and starts standing up to Guilliman instead of just being a pantomime Emperor, while the Lion is nowhere to be seen as usual. Warsmith Dantioch bites it while using the Pharos to burn the Night Lords out of his fortress, but inadvertently piques the interest of the [[Tyranids]], causing them to show up 10,000 years later. Skraivok become a prime example of DAEMON SWORDS: NOT EVEN ONCE.
*'''''Eye of Terra''''': Another anthology.
**'''The Wolf of Ash and Fire''' - takes place before Ullanor. Emperor and Horus destroy one really powerful WAAAGH!!!, lead by an exceptionally huge Big Mek. Story consists almost completely of foreshadowing.
**'''Aurelian''' - see "First Heretic"
**'''Massacre''' - A young Night Lords apothecary named [[Talos_(Warhammer_40,000)|Talos]] takes part in the Istvaan V Massacre.
**'''Brotherhood of the Moon''' - After the failed coup from ''Scars'', Torghun Khan is being interrogated and explains why he chose Team Horus.
**'''Inheritor''' - [[Eliphas_The_Inheritor|Eliphas]] The Inheritor (yes, that one from the DoW series) sacrifices the population of a city on a planet Kronos (yes, again from DoW) and a company of Ultramarines to have a nice little chat with Lorgar.
**'''Vorax''' - An unlucky Dark Mechanicum priest falls to a loyalist ambush and subsequently being killed by Vorax-class battle servitor. Really short and forgettable story.
**'''Ironfire''' - Turns out that Idriss Krendl (that arrogant warsmith who had a stronghold dropped on his head by Dantioch) is alive! Really tough bastard, though several months under debris has affected his sanity a little. He now spends his time testing new siege tactics on the Emperor's Children world in preparation for the siege of the Imperial Palace.
**'''Red-Marked''' - Aeonid Thiel starts his band of cliche badass marines and learns about the mysterious Nightfane that threatens Macragge itself.
**'''Master of the First''' - Astelan takes part in a coup to remove Luther from command, but only to prevent it.
**'''Stratagem''' - Guilliman explains to Aeonid Thiel how important it is not to follow military books to the letter and concludes that he'll just have to write a book about it (guess [[Codex_Astartes|what book]] it is). 
**'''The Long Night''' - Jago Sevatarion is chilling in Dark Angels captivity, slowly losing his mind due to his suppressed psyker powers, when some girl from the ship's astropath corps starts to talk to him from boredom. When her superiors find out, they flog her nearly to death because it was obviously forbidden. Sevatar doesn't take it lightly, flees captivity and kills the main astropath and calls it JUSTICE, because a man who skins young girls by the dozens on a daily basis simply to strike fear in a populace is definitely all about justice.
**'''Sins of the Father''' - During his emo-phase Sanguinius contemplates how his legion will fall after his death. He then decides that switching roles between Azkaellon and Amit during ritual combat will probably solve all problems.
**'''The Eagle's Talon''' - While the Battle of Tallarn rages, some Imperial Fists '''covert operatives''' try to take over a huge macro-transporter. They fail and are forced to crash the transporter onto raging battlefield below, blasting everything within 300km and causing nuclear fallout.
**'''Iron Corpses''' - One really tough and stubborn Iron Warriors Warsmith refuses to die despite the nuclear fallout from the previous story, waits for the storm to subside, finds and reanimates Warlord Titan and returns to action.
**'''The Final Compliance of Sixty-Three Fourteen''' - The Imperial governor of some backwater world recollects memories of his long service to the Imperium, while preparing himself to spit in the face of Horus's representatives when they come to demand his surrender.
**'''Herald of Sanguinius''' - Azkaellon invents the Sanguinor to free his gene-father from the burden of being the figurehead of Imperium Secundus.
*'''''The Path Of Heaven''''': Sequel to Scars. The White Scars have been fighting the traitor legions for a few years but are starting to show the strain. They finally decide to head back to Terra, but things don't go as planned. Notable for digging into the Webway storyline and the Navis Nobilite as well as featuring a resurrected and suddenly competent Eidolon. Navigators weren't going to sit around while E-money built their replacement, White Scars use a prototype webway portal to escape their last stand, and Mortarion starts using sorcery to locate Typhon.
*'''The Silent War:''' Guess What?! It's ''another'' anthology of stories that GW have already sold individually as audio-books. So value might be had for those who hadn't listened to them.
**'''The Purge''' - The story consists of two story lines. In the first of them, Sor Talgron purges one of the worlds in Ultramar during the Shadow Crusade, but gets tricked and takes a bombful of exterminatus grade phosphex to the face (he survives nonetheless, though). In second, he undertakes some covert actions on Terra before Istvaan V and leaves a nasty surprise for Dorn in the catacombs beneath the Imperial Palace.
**'''The Sigillite''' - see below, in section "Audio Books" 
**'''Wolf Hunt''' - [[Awesome|Samurai witch hunter]] Yasu Nagasena hunts Severian the Wolf right after the events of Outcast Dead.
**'''Army of One''' - An Eversor assassin is sent out for the routine "kill everyone" mission, but finds out that his main target is not only a stereotypical Stupid Fat Decadent Planetary Governor who turned traitor, but also a jerk from his past. So he kills him. The whole thing is about 4 pages long.
**'''The Gates of Terra''' - Dorn and Malcador have an idea that it will be good for the defenses of Terra if they use some psykers to run some chosen veterans through endless hypno-simulations of ill-fated space battles with the Vengeful Spirit within the boundaries of Sol.
**'''Ghosts Speak Not''' - Amendera Kendel, who had a crisis over her moral values after the events of The Voice and left the Silent Sisterhood, returns to Luna to recruit some of Garro's Death Guard into the Knights Errant. They then are dispatched to a mission to uncover a traitor's plot at Proxima Centauri.
**'''Templar''' - Sigismund purges an asteroid temple of Word Bearers, this being the same temple that was mentioned in The Purge (those cross-references are awesome).
**'''Distant Echoes of Old Night''' - Some Death Guard are drowning Imperial Fists' defenses with bodies on some shithole moon in the middle of nowhere, but it seems they are running out of time. They launch a final assault but fail to coordinate the phosphex bombardment with the assault and actually destroy themselves with little help from a primitive trap built by the Fists. Facepalm on the house to everyone.
**'''Grey Angel''' - Loken, fresh from Istvaan III and accompanied by Iacton Qruze, is sent to Caliban to check Luther's loyalty to Terra. The mission actually fails as Loken gets caught and is interrogated by Luther himself, but Loken is rescued by the Watcher in the Dark and Lord Cypher and subsequently flees the planet.
**'''Lost Sons''' - Tylos Rubio goes to Baal to disband the Blood Angels Legion and recruit their last battle company into Malcador's Knights Errant after Sanguinius and the rest of the legion go missing after Signus. The Angels understandably don't like this news and Rubio nearly gets killed, but is saved by a message from Raldoron announcing that Sanguinius and the IX Legion are alive.
**'''Child of Night''' - it turns out that one of the Night Lord Librarians had fled his Legion and went into hiding on Terra. One of the Knight Errant finds him and recruits him for the Grey Knights.
**'''Luna Mendax''' - After his fail on Caliban, Garviel Loken shuts himself away in a forgotten garden on Luna and spends his time growing flowers and feeling sorry for himself. This is so pathetic that the spirit of the long-dead and eaten by daemons Tarik Torgaddon escapes the warp to return Loken to his senses.
**'''Patience''' - Helig Gallor from Ghosts Speak Not, now acting on his own, is searching for Garro who is too busy killing giant daemons to report to Malcador's office on time.
**'''The Watcher''' - Ison from the Knights Errant finds and saves a horrifyingly mutilated and nearly dead survivor from the Space Wolves squad that was sent to watch over Konrad Curze.
*'''''Angels of Caliban:''''' Two Dark Angels stories in one book again, though this one actually moves the plot forward. In Ultramar, the Lion captures Konrad Curze but only after discreetly nuking a whole region despite Guilliman's ban on orbital weapon use, which results in his disgrace and we find that it is Guilliman who breaks the Lion Sword. Curze reveals that there were Chaos cults on Macragge too and that Guilliman would be a traitor if he had landed a little to the left. On Caliban, the Fallen openly declare their rebellion from the Imperium and ironically steal some starships that were meant to collect them and actually bring them into the war again. [[Zahariel]] kills [[Cypher]] and takes his place.
*'''''Praetorian of Dorn''''' Alpharius tries to invade <s>Terra</s> Pluto. Dorn kills him. Yes, Alpharius is now dead. And not a fake either, but the real Alpharius. Omegon can confirm. Alpha Legions fags blew a gasket. Oh shit believe we did.
*'''''Corax''''' A compilation of all the Corax Stories plus a new one, '''Weregeld''', which manages to undo all the hard work the previous stories have done and turn Corax into a douchebag. Kills all his mutated Raven Guard because he promised to kill warp stuff. Saves Russ though.

===Books XLI - L===
*'''''The Master of Mankind''''': The Emperor is a dick: the book. We all knew this but now it's set in stone. Highlights include the Emperor stating to Arkhan Land that the Primarchs are tools and he views them with a scientific but detached fascination. He refers to them as numbers but seems content to allow the fantasy of being their "father", an interpretation of the character that was fairly divisive to say the least. He actually seems to care more for his Custodians than he does any of his other creations, but they don't consider him their father and see him as just their warlord. Drach'nyen is also revealed to be the daemon created when Cain killed Abel. In the end the Emperor closes the door on the Webway and has to spend the rest of his time sitting in the chair keeping it shut. Despite this, it does show off why the Chaos Gods fear him, as he pretty much rapes an infinite army of Daemons; the greater daemons either flee or try and fail to fight him (being destroyed in a matter of moments) whilst the lesser ones die just by looking at him. Despite this, Drach'nyen nearly kills him, and claims that it will kill the Emperor (keep in mind that the future is VERY malleable, Daemons lie, and that this was written by a man whose hate-boner for Big-E exceeds that of The Four, themselves). But how will it feast on the Emperor's tattered soul when Abaddon lacks arms to plunge it into his chest? (Abaddon never lost his arms due to the same retcon that let Eldrad live) Also known as Master of Skubkind. The Emperor reveals his grand plan of saving the human race from the Eldar fate by giving absolute control of every human to a Custodian before shanking him with Drach'nyen and making him run into the Webway. Also put all his chips into the ''Human Webway'' plan and screwed us all over without a backup. Can you tell that this is an ADB book? It also features one of the most depressing endings of the whole Heresy series as in the last scene of the book the Emperor somberly acknowledges to one of his Custodian that he fears that he has now run out of cards to play and can't yet think of a way out of the whole situation. Grimdark, indeed.
*'''''Garro''''': Compilation of all the stories about Garro and his boy band, though they insist it isn't just an anthology since the audio book stories were expanded to be more written novel friendly. Malcador recruits Garro to be his Agentia Primus to do hard and unsavory work that needs to be done for the good of the Imperium. This work at first consists of building up Malcador's secret service retinue. His first mission is to travel to Calth post-betrayal and recruit an ex-Librarian Ultramarine, Tylos Rubio, who comments on Garro acting like a 'Knight Errant', giving birth to the organization's eventual name. The smurf is a stick in the mud but eventually comes around after his fellow Legionaries disown him for an act that is slightly more than the allowed amount of psychic (which is 0%). As soon as they return to Terra, a stick in the mud Custodian takes them away from Luna on behalf of Malcador to intercept an arriving fleet of civilian space ships headed by a World Eater ship. The fleet claims to be fleeing the Isstvan atrocity. Garro and Tylos are there to make sure the Custodian doesn't blow up any actual loyalists, but The Legionary ship is [[Emperor's Children|full]] of [[White Scars|sussy]] [[World Eaters|bakas]]. The WhiteScar contingent turn out to be the impostors and get nearly everyone in the adhoc fleet killed, as well as the Custodian, save for the World Eater who is recruited afterwards to be the third Knight Errant. Some time later, Garro infiltrates the Iron Fists' Phalanx in an attempt to recruit another ex-Librarian who got told to go to his room after the Edict of Nikaea. Garro makes his way to the sanctuary undetected but the ex-Librarian is a stick in the mud. They throw some fists but [[Rogal Dorn|King Stick in the Mud]] shows up and reveals Garro wasn't nearly as stealthy as he thought he was. Dorn lets Garro off the hook without too much hassle but tells him to question Malcador's cause and reveals to him that a fellow Death Guard Apothecary that Garro escaped Isstvan with on the Eisenstein has taken a sample of the megacancer from the Eisenstein for study in hopes that he could find a cure for it. Garro arrives just in time to see the Apothecary get infected and vents both him and the sample into space where it is then cooked by the sun. The three Knights are then deployed to the ruined world of Isstvan III with no clear objectives because Malcador is a troll sometimes. There, they find a group of loyalist army survivors and one Legionary calling himself Cerberus still alive after Horus' betrayal, albeit with severe PTSD. Cerberus attacks everyone and the Knights are prepared to put him out of his misery but then the army men turn out to be agents of Nurgle in disguise. They summon a whole horde of poxwalkers and the Knights play a round of [[Darktide|Darktide]] but with one man short until Cerberus joins the server. Once things quiet down, it is revealed that Cerberus is Garviel Loken. The rest of the book sees Garro searching for meaning that he thought he'd find in the role of being Malcador's spy boy but didn't. He even gets Malcador's permission to leave for some soul searching. This consists mostly of him seeking another audience with Euphrati Keeler, convinced that she'll elucidate on what he's supposed to do with himself. On his search for the saint, he meets Sigismund - who's interested in keeping Keeler alive and out of both Horus' and the Imperium's hands - and thwarts an attempt on Keeler's life by an ex-Eversor assassin sent by Horus (he's the Eversor from '''Nemesis'''). Garro finally finds Keeler but it turns out Malcador was tracking him the whole time and some Grey Knights show up to take Keeler into custody. Garro knows Sigismund will be miffed but understands this is just about the only way to keep her from getting her shit pushed in by more Horus assassins. In the end, Garro does not accomplish much in his soul searching but findsresolve anyway, faithful that his true purpose will be made known to him in time. 
*'''''Shattered Legions''''': It's an anthology containing an anthology. I shit thee not. It shoves together the limited edition anthology Meduson with a few other shorter stories, including some Alpha Legion stuff like the Seventh Serpent.
*'''''The Crimson King''''': Magnus was broken into shards when Russ felled him. Now the Thousand Sons with the help of Lucius the Eternal must put him back together. Kairos Fateweaver makes an appearance. Ties into the Ahriman Trilogy
*'''''Tallarn''''': Does it even need to be stated? It's another fucking anthology, this time putting all the tank porn of the Tallarn books into one binding. It is worth a read if you are a fan of Imperial Guard (Army), as most of the storylines are about around mortal tank crews doing what they do best (dying).
*'''''Ruinstorm:''''' The conclusion to the Imperium Secundus plotline, as well as the follow on to Damnation of Pythos. Shows the Lion, Sanguinius and Guilliman trying to cross the Ruinstorm to reach Terra. After a brief stopover at Pandorax, they decide to head out to Davin where the Heresy began and where destinies are remade; they pass systems along the way that show what the Galaxy would look like if Chaos wins, such as a Forge World surrounded by an immense fortress wall in outer space 4000 miles thick and a sector of space filled with solid ritualized geometric shapes that are perhaps light years across. Davin itself is surrounded by a cloud of bones and wreckage millions of kilometers thick, but the planet has long since been abandoned. There Sanguinius finds out that in order to live through the Heresy he must become a monster even worse than Horus, but dying will curse his sons with the Black Rage; blood is on his hands either way. Instead, Sanguinius tries to sacrifice himself to save the day, but the [[Sanguinor]] steps in and takes his place while the fleets rain down a shitstorm and destroy the planet. In the aftermath, the Ruinstorm abates enough for them to reach Terra, but Horus has so much force that it is impossible for all three legions to reach, so Guilliman and the Lion agree to distract the Traitors long enough to give Sanguinius a window to get back and face his destiny, explaining why they never made it to the Siege since they were engaging Traitor fleets and burning their worlds.
*'''''Old Earth:''''' Set immediately after ''Deathfire'', Vulkan and three Salamander legionaries (the rest of the Salamanders weren't informed of their Primarch's resurrection) travel through the Webway by a gate hidden in a cave on Nocturne. On their path to Terra, they came across the Shattered Legions who were preparing for their first major void engagement with the Sons of Horus. Just before the attack, some Medusan-born Iron Hands tried to stage a coup against Shadrak Meduson by revealing a hideous contraption of machines and the last remnants of Ferrus Manus - ''his iron hand'' (they were under the illusion that they could resurrect their Primarch through cybernetics; it is hinted that the Mechanicum had some <s>hand</s>{{BLAM}}{{blam|that pun was so bad heresy is automatic}} in this affair). Thankfully Vulkan shatters the hand and Meduson assumes command again, though he was killed by '''Tybalt Marr''' in a boarding action after the Iron Hands refused to send reinforcements to him. In the end, it is revealed that the Emperor had Vulkan forge a weapon that, in the event Terra fell to Horus, would amplify the power of the Golden Throne into a fatal FUCK YOU nuke into the heart of the Chaos God's domains, sadly also wiping out the entire Throneworld (this is possibly also one of Vulkan's nine relics). Oh, and Eldrad rescues [[Knights-Errant|Barthusa Narek]] from Nocturne and makes him his assassin. They killed most of the Cabal, including a vaguely amphibian alien sitting on top of a jungle pyramid. Yes, Eldrad Ulthran might just be the only person alive to have killed an Old One. Finally they rescue John Grammaticus, who had his memory wiped after his failure to assassinate Vulkan. With his memory restored, Grammaticus is ordered by Eldrad to find Ollanius Pius and go to Terra.
*'''''The Burden of Loyalty:''''' In the grim darkness of the 3rd millennium, there are only anthologies.
**'''The Thirteenth Wolf:''' Old Guard Space Wolves get lost in a a series of Warp Portals during the battle of Prospero. 
**'''Into Exile:''' Arkhan-the-Humble-Land basically has to have a Boltgun Shoved in his face to leave during the initial Mars Revolt.
**'''Cybernetica:''' Story full of [[awesome]] about how Carrion the Raven Guard Tech-aspirant awaiting graduation watches his fellows get slaughtered before hulking out Sith-Style. Meanwhile an Iron Warrior proves how badass they are when not under the thumb of their whiny emo excuse of a primarch by literally throwing Carrion off a tower so he's the sole target of an incoming Warlord Titan. Carrion then joins the Knights-Errants and actually makes Dorn backpedal and heads back to Mars to aid the Resistance in taking it back through use of Heretek.
*'''''Wolfsbane:''''' Leman Russ faces off against Horus, with the help of the Spear of Russ mentioned in the FUCKOLD Space Wolves novels. They're evenly matched but Russ seems to get the better of Horus when the Spear partially de-corrupts the Warmaster. Unfortunately for him, Russ tries to bring his brother back to his senses rather than strike a killing blow and is dragged away barely conscious by his men after Horus retaliates, setting the stage for the Battle of Yarant. Also a glimpse of [[Belisarius Cawl]] from back in his earlier, fleshier years.
*'''''Born of Flame:''''' ANTHOLOGIES!

===Books LI-LIV===
*'''''Slaves to Darkness''''' The traitor primarchs gather for the assault on Terra but things aren't going well. Guilliman and the Lion are giving them a helluva hard time and Horus himself is still quite literally drained from his duel with Russ. Basically how the gang gets back together for the push on Terra. The Sons of Horus start fracturing badly and Maloghurst takes it upon himself to cure Horus. In so doing, he forces a daemon to act as his guide through the Warp and finds out from this surprisingly forthcoming daemon (presumably from the Chaos God of Exposition) that even though Horus was superpowered from his Molech makeover, he'd left a part of his soul behind in the Chaos God's realms, which had come to the realization that Chaos had been using him from the beginning. The daemon also suggests that Horus was never meant to win in the first place and that for all his new power he is no match for The Emperor, but Maloghurst very loudly refuses to believe it. Maloghurst meets his end as he resurrects Horus due to infighting within the Sons of Horus, erasing the last uncorrupted part of Horus's soul in the process. Mortarion is named the vanguard of the Siege, Perturabo is sent to pick up Angron, and Lorgar gets Zardu Layak to speak Fulgrim's true name and bind him into joining in a plot to depose the Warmaster, believing that his refusal to completely submit before the Chaos Gods will lead to the Traitor Legions' ultimate defeat at Terra. This turns out to be a massive mistake that leads Lorgar to be utterly curbstomped by the revived Horus and told that he will be killed if Horus ever sees him again. Witnessing this, Zardu Layak and the Word Bearers present all swear allegiance to the Warmaster before Lorgar leaves with his tail between his legs. Layak frees Fulgrim who finds it all hilarious. Magnus makes an appearance at the end, swearing himself to Horus's service. "Alpharius" makes a token appearance to hand over Terra's defense data before disappearing without a trace and no mention of his legion at all, although Alpharius does basically mime they are done fighting for the Warmaster's ends.
*'''''Heralds of the Siege''''' You know the drill by now. Anthology. But the end is in sight.
**'''Myriad:''' Loyalist Mechanicum forces hiding underground in Mars launch guerilla attacks on targets of opportunity from below. During one raid which blows the head off of a Warlord Titan, they retrieve a Castellan automata with the Abominable Intelligence from ''Cybernetica'' and a tech menial. Putting them into quarantine the Abominable Intelligence wakes up from probing and cleanses the menial of all scrap code & corruption to display it means no ill will to the loyalists. The Tech Inquisitor leader decides it's time to go Tech Radical "enemy of my enemy is my friend." Abominable Intelligence supplies them with a complete battleplan and strategy (4.7k item checklist) for wiping out all the Dark Mechanicum on Mars and starts off with seizing & cleansing a Warlord Titan searching for their headquarters.
**'''The Grey Raven:''' A ship sent back to Terra by Corax arrives in the solar system, with the Librarian Raven Guard who opened the Emp's gene-banks for Corax, seven Custodians, and an Imperial Fists force. Presenting to a border post for inspection, the Custodian commander, upon discovering the identity of the Raven Guard, states a code word to the Custodians on ship and they all try to pull the Librarian's head off. The Fist Captain saves him and his men try to hold off the Custodians while he and the Librarian try to get off the ship. The Custodian captain corners them and slays the Fist captain. The Librarian gets angry and is about to use his psychic powers on the Custodian when he remembers his vow to Corax and surrenders to execution. Revealed to be an elaborate test by Malcador, who subsequently recruits him into the Grey Knights after apologizing for the death of the Fist captain.
**'''Valerius:''' Marcus Valerius of the Therion cohort (unaugmented troops fighting with Raven Guard) is now a big believer in the Lectitio Divinatus. He sets his forces to defend cross over points on a river where a bigger enemy force is attempting to cross. Corax had sent the Therion cohort (23k soldiers) and Valerian to die fighting against traitor marines & titans for a planet near Beta-Garmon with no escorts for their transport ships. Gives a speech about how proud all his soldiers should be for facing a suicidal mission to die for the emperor. The Therions manage to take out all titans before being overrun. As the remaining marines breach his command leviathan, Valerius gives the order to detonate their reactor and leads a prayer with the remaining command crew. Another regiment of the imperial army happens across the aftermath and think that the Therions were wiped out and some other regiment managed to hold the line against the traitors. Leviathan's death took out everybody on the battlefield. Valerius stumbles out of the wreckage of the Leviathan, and proclaims his survival a miracle.
**'''The Ember Wolves:''' A Warhound titan pack attached to the World Eaters takes down a Warmonger titan on some planet. World Eater influence leads to a leadership challenge shortly after tipping over the Warmonger. Despite the pack leader putting down the leadership challenge, the downed loyalist Warmonger blows up its reactor and takes out all named characters.
**'''Blackshield:''' Khorak, a renegade member of Mortarion's [[Deathshroud]], is on the run from loyalist hunters. He and his squad escape down to the surface of a swamp planet where they are slaughtered till only he remains. He recognizes the leader of the loyalists as another Death Guard member who reveals himself to be Crysos Morturg, a survivor of Isstvan III. Khorak explains that he turned against Mortarion after Molech, when his entire squad was sacrificed by Mort for witchcraft. They both express their hatred of Mortarion, and Khorak briefly considers teaming up with Morturg but then one of his buddies proves to be not quite dead and tries to shoot Morturg, who deflects the shell with his psychic abilities. Khorak immediately tries to kill him and is gunned down. Morturg is revealed to be a mangled mess who survived Isstvan thanks solely to his psychic power and an extensive cybernetic rebuild by Calleb Decima, another Istvaan III survivor (who by the end of the battle was so mangled he resembled a spider more than a person). After Crysos ruminates on the pointlessness of Khorak's death, he decides it's time to go see the Emperor.
**'''Children of Sicarus:''' Kor Phaeron and the remainder of his party are on the run in Sicarus, a daemon planet, being constantly harassed by daemons that are whittling them down. They gain the attention of a warlord acolyte of Tzeentch and at the same time a prophet appears to them and offers them sanctuary. The prophet leads them into a camouflaged valley where he reveals to them glyphs and Lorgar's athame that show how Kor Phaeron would arrive, slit his own throat to open a portal, and the remaining legionaries would lead the prophet's people through to join Lorgar at the Siege of Terra. Kor Phaeron kills the prophet, announcing that his fate is his own. The camouflage breaks down with the prophet's death and the warlord meets him. She offers him lordship of the planet after she ascends to daemonhood, and he accepts letting her have the prophet's people. As she is about to ascend on the spot, he sneaks up behind her and slits her throat with the athame. Shortly after Sicarus is now a worship planet with slaves laboring to create monuments of worship. Kor Phaeron states that it is now a refuge for the Word Bearers in the never-ending war ahead of them.
**'''Exocytosis:''' Typhon is refitting his fleet at Zaramund by the grace of Luther. The Death Guard forces have set up an isolated camp away from any of the Fallen or natives of Zaramund. Luther decides to send a Fallen to spy on the Death Guard to see what's up with their shyness. Typhon is trying to get used to the gifts of the Grandfather when a group of civilians approach the camp. They reveal themselves to have been expecting his arrival, and all of them are revealed to be dead but kept alive by the grace of Nurgle. They call him Typhus and proclaim that with his arrival they are finally free to spread Papa Nurgle's gifts everywhere. The Dark Angel captain observing all of this sees a crowd of zombies and flies and Typhon conversing with them. Typhon sees regular people, though he can glimpse their true nature. The Death Guard sentries just see regular people. The captain springs out of his observation spot and starts attacking the tainted civilians like a true Dark Angel. Typhus kills him and in the process becomes one with his gifts. The Death Guard depart shortly afterwards with no contact with the Dark Angels. Luther is puzzled by this, ignoring a medicae request for apothecary aid for a sudden new disease in the civilian population, and wonders what other effects the Death Guard may have left on Zaramund. Typhon uses his blood to poison his commanding officers after announcing they will reunite with the Primarch.
**'''The Painted Count:''' Gendor Skraivok is having a hard time getting rid of his daemon blade. He tries burning it, tossing it into a plasma reactor, and out an airlock, but it keeps coming back. In a political battle for command of the legion, a rival tosses him into the impossible maze built by Perturabo to contain Vulkan. Failing to leave the maze normally, he seals his pact with the daemon blade and it leads him out of the maze. Killing the rival in a duel, he takes command of the ''Nightfall'' and leads the Night Lords to Terra to join the Warmaster.
**'''The Last Son of Prospero:''' Revuel Arvida is transformed into Ianius after teaming up with the soul shard of Magnus. Jaghatai Khan & Malcador happen to be in the room.
**'''The Soul, Severed:''' Eidolon puts down a leadership challenge from a leader who is loyal only to Fulgrim and wants the legion to sit around waiting for him to return. Being still reasonable, the challenger lures Eidolon's forces into a chemical treatment factory, blows up the chemical tanks, then counterattacks. The challenger deep-strikes with a bodyguard squad directly onto Eidolon, and then Eidolon and every single other noise marine giggle and laugh at the same time, obliterating the entire battlefield. Eidolon realizes that he needs a planet with limitless numbers of potential slaves so he could spend lifetimes in debauchery, and so accepts that his fate and that of his forces is to eventually assault the Imperial Palace.
**'''Dark Compliance:''' Argonis, an emissary of Horus, meets Decigus, the Lord of a star system. Decigus is pretty intent on executing Argonis in person, and Argonis tells him to swear fealty to Horus or else... and starts to relate the tale of how he became an emissary, starting over a Mechanicus world that also gave Horus the finger and roasted his emissary. Horus meets with Argonis and reveals the emissary was a distraction to the Mechanicum ruler, while another plan was put into place. Horus sends a distraction fleet, followed by another distraction fleet, followed by hidden fighters and vortex missiles he had dropped off point-blank on the moon when his emissary had been killed. Wiping out all orbital defenses the magos still believes he can extract a heavy toll on Horus over several months of fighting. Horus flies down, summons a daemon w/ invasion on the side, then departs with his forces. The world gets covered in blood clouds and is infested by daemons. Argonis then repeats his question to Decigus, join us or die.
**'''Duty Waits:''' The Imperial Fists have beefed up security protocols around the Imperial Palace to ridiculous levels after the Alpha Legion shenanigans from ''Praetorian of Dorn''. All the civilians in the Palace are barely tolerated and given limited rations. There is a food riot and all the new Imperial Fists who were inducted during the Heresy and have never killed anybody get their first taste by shooting rioters, which they're not thrilled about.
**'''Magisterium:''' Valdor is busy handling the Custodes post-Webway war. Not enough resources, Custodian serfs are working to their deaths, and Custodians dealing with the fact that they can no longer effectively protect the emperor. Flashback to Valdor being talked to dismissively by Leman Russ during the Burning of Prospero.
**'''Now Peals Midnight:''' Rogal Dorn is told that long-range sensors & astropathic choirs have detected something big approaching through the Warp, and he realizes that Horus's arrival in the solar system is imminent. He passes along the message to his brothers on Terra. A strategium general is amazed at how she was bred, augmented, and trained to process insane amounts of info and what takes her 15 minutes to re-appraise herself of the solar system tactical info takes Dorn a brief glance at the screens. Archamus and Andromeda-17 from ''Praetorian of Dorn'' have a quiet chat concerning the imminent siege and the fact that humanity will be forever psychologically scarred by what is about to happen. Dorn, Sanguinius, and the Khan gather on a wall of the Palace and stare up at the sky. At midnight a new star blossoms, signaling the exit of Horus's fleet from warp space.
**'''Dreams of Unity:''' A terminally ill Thunder Warrior helps some Custodes kill an Alpha Legion infiltrator while continuously having flashbacks to the Unification Wars and the Emperor's grand dream of Unity. Once the Alpha is dead, he surrenders himself for execution to the Custodes.
**'''The Board is Set:''' Malcador contacts the Emperor for advice just before the Siege and plays a game of strategy that they have been playing for a ''long'' time, detailing the movements and eventual fates of the Primarchs. Shows that the Emperor was certainly manipulating them but was mostly on the back foot for much of his conflict with the the Chaos Gods so the outcome could have been much worse. Big-E reveals a final gambit that will screw over Malcador in order to deny Chaos their victory.
*'''''Titandeath''''' Titan-centric book taking place during the battle for Beta-Garmon, the Loyalists' final effort to prevent the Traitors from reaching Terra. How one book could be made of a battle taking place across an entire solar system that had, according to Slaves to Darkness, more casualties than the last five years of the Great Crusade remains to be seen. As it happens... fairly feasibly. Beta-Garmon represented the tipping point for both the loyalists and the traitors; if the traitors didn't move past it, Guilliman would crush them from behind. If the loyalists didn't engage, then Horus would take his overwhelming numbers unopposed. The point is that Horus would win Beta Garmon either way. Rogal Dorn makes the only proactive move that he can make in the whole war, and sends a sizeable contingent of Terra's defenses to Beta Garmon to delay the Warmaster for as long as possible. And because Titans aren't really well suited to defending Terra, they are let out in force on Beta-Garmon. Which makes perfect target practice for the massive orbital platform that Horus proceeds to use. Unfortunately the story is let down by its ham-fisted portrayal of an all-female Titan Legion (mostly out of wasted potential) and a rushed storyline. Also a mopey Sanguinius who makes 'I do not die here today' into the new 'Vulkan Lives!'.
*'''''The Buried Dagger''''' This is the final book in the "main" Horus Heresy series, and tells the story of how Mortarion and the Death Guard fell to Nurgle's service. It happens essentially as has already been seen in other fluff sources: Typhon murders all the Navigators and claims he can guide the Death Guard fleet to Terra himself, only to deliberately strand them in the Warp so that Nurgle can turn them to his service. As disease spreads through the fleet, Mortarion becomes increasingly horrified and outraged as he realizes what's happening to his legion and finally kills Typhon in retaliation, but the Destroyer Hive reanimates his corpse, officially turning him into Typhus. After some more internal angst and butthurt, Mortarion finally accepts his destiny and becomes Nurgle's champion. The B-plot of the book concerns the founding of the [[Grey Knights]], as well as an assassination attempt on Malcador by Erebus, who planted a psychic suggestion in Tylos Rubio's head all the way back on Calth. Rubio, Sevarian, Revuel Arvida/Ianius, and several other Knights-Errant are named as the first eight Grey Knights and are shipped off to Titan to prepare for what will come after the Heresy. Garviel Loken is supposed to be the ninth Knight, but he turns it down because he still wants a shot at Horus. Nathaniel Garro gets cut loose from the Knights-Errant and sets off to find his own destiny.