Editing Constantin Valdor (section)

===Horus Heresy===
Valdor was busy overseeing the Webway project when a giant red faggot called [[Magnus]] broke through multiple dimensional wards to warn his father of his brother's imminent betrayal - in doing so he punched a hole in the Webway that can never (read fucking never) be fixed and was instantly filled by an infinite amount of daemons. They even manifested on Terra itself, and a battle ensued. Needless to say, Big E and Valdor were mightily pissed off about the whole thing. Valdor and a cadre of fellow Custodians were subsequently dispatched to Prospero to drag that silly asshole back to Terra for sanction (and to ascend the Golden Throne) while his father went in to figure out how to get a handle on it. He rounded up a contingent of Custodes and Sisters of Silence and accompanied [[Leman Russ]] and the [[Space Wolves]] to Prospero. They were to prosecute the Thousand Sons for their crimes and bring Magnus back to Terra in chains.

Chaos had already struck however, and Horus turned Russ against his brother. No longer was his task to arrest the Sorcerer-King, claimed the Warmaster, but to execute the warlock. Though Valdor argued with the Space Wolf as to his task, as he was already far too skeptical of the Primarchs at this point, his force was too small for him to really object. He possessed no authority to overrule the Wolf King once his mind had been determined due to the nature of his role and the Primarchs. This didn't go incredibly well as you will see and I'm sure he would agree if he was able to.

The Thousand Sons were not willing to roll over and fucking die however, and in response to orbital bombardment and artillery strikes they broke the Edict of Nikaea and the city of Tizca became a battlefield of the worst kind, as the true power of the Sorcerer's Apprentices were unleashed. Against the Space Wolves full legion and aided by the elite guard of the Emperor, the Thousand Sons stood little chance. Some of the greatest psykers in the Legion were hunted down by the Custodes, executed carefully as the Sisters smothered their psyker talents with their null veil. Valdor himself was said to have fought against the elite Khenetai "Blademasters" whose powers allowed them to predict each blow before they landed. None of them survived, and Valdor walked away from the conflict sporting a single wound, as he tried to regain control of the annihilation unleashed around him. It was too little and too late however, Magnus had to flee with his sons, leaving the Space Wolves grievously injured, and a possible ally now forced into the traitor side without choice.

With a huge disaster on his hands, Valdor returned immediately to Terra. His next war would be the War in the Webway. This would effectively spell the end of the Custodians as a viable fighting force (as well as the Sisters of Silence) and he would remain an armchair general up until the Siege of Terra.

The Custodes were initially held in reserve during the early days of the Siege, but when the Death Guard made landfall and started turning the area around the palace into a recreation of the worst parts of WWI, Valdor led a series of counterattacks against them. The Custodes proved to be especially lethal against the Death Guard, as their Emperor-forged nature made them anathema to anything touched by Chaos. Even with all their new gifts from Papa Nurgle, the XIV Legion routinely lost dozens or even hundreds of Astartes to these attacks.