Editing Ahzek Ahriman (section)

==During the Heresy==
Like all Astartes, Ahriman assisted his [[Primarch]] during the [[Great Crusade]]. Unlike most Astartes, he served as [[Magnus the Red]]'s second-in-command and advisor. Perhaps he was not as close to Magnus as the Primarch's foster father Amon, but he nevertheless was entrusted with guardianship of the [[Book of Magnus]]. Considering said book was a compilation of the most important secrets and powerful spells Magnus [[Blood Ravens|acquired]] from all over the galaxy, it gives an idea of the esteem he held Ahriman in that he would let him both watch over and read from said book. (And how [[rage|unhappy]] he must have been when Ahriman misused it to cast his Rubric, more on that below.) Ahriman was present during the time when [[Horus]] became Warmaster. He was also present during Magnus' trial on Nikaea - but blacked out due to Magnus' overwhelming aura when it came time for [[Mortarion]] to speak against psykers. (Magnus got ''mightily pissed off'', and forgot to tone it down for people who aren't him).

When the [[Space Wolves]] attacked Prospero (under orders from Horus), Ahriman led the Thousand Sons Cults to battle, defying Magnus' orders to accept their fates under the belief that their only [[Rogal Dorn|redemption would be in death]]. Despite this, the Sons were already near total annihilation until Magnus finally decided that enough was enough. Magnus battled [[Leman Russ]], but Russ got super raggy with a blind shot into Magnus' eye of epicness and was about to slay him. Magnus then swore allegiance to [[Tzeentch]] in a desperate move to save his legion, and so Tzeentch teleported Magnus, Ahriman, and the Sons to the Planet of the Sorcerers.