Zardu Layak - Plot Against Horus: After the Battle of Beta-Garmon had destroyed the last of the Imperial outer defences on the path to Terra, the Warmaster Horus ordered a general muster of all Traitor forces at Ullanor Prime, the site of the great Ullanor Crusade years before.But by this time, Lorgar had come to view Horus as too weak and flawed to lead the forces of Chaos to victory over the Emperor. He had designed a plan to kill the Warmaster and take his place as the new and rightful leader of the Traitor forces. With the aid of Layak and the Chaos mystic and oracle disciple of Cyrene Valantion named Actaea, Lorgar journeyed with them and a small force of Word Bearers into the Webway in the hopes of finding the missing Daemon Primarch of the Emperor's Children Legion, Fulgrim.They successfully navigated the Webway's treacherous corridors to enter the Eye of Terror, where they eventually entered the Realm of Chaos and found themselves before the Palace of Slaanesh itself. Within they discovered Fulgrim and the daemon N'Kari engaged in debauchery. Fulgrim refused to leave his delights and return to the war effort, forcing the two sides to battle. As Lorgar held off Fulgrim, Zardu Layak uttered the True Name of the newly ascended  Daemon Primarch.Layak had learned the name during a ritual Lorgar had conducted but due to the total amnesia it would eventually curse the name's bearer with, he had given the information to the Dark Apostle instead. Fulgrim was bound to Layak's will by the name's utterance, and Lorgar now had a powerful pawn with which to slay Horus.Yet Layak had secretly begun to harbour his own doubts about Lorgar, and expressed resentment at his seeming enslavement by the Ruinous Powers. Layak worried that perhaps Lorgar's path was too intertwined with the desires of the Dark Gods.After gathering the disparate Emperor's Children together, the two Legions arrived at Ullanor for Horus' muster.Horus had by this point recovered from the incapacitating injuries he had suffered at Beta-Garmon thanks to the sacrifice of his longtime Equerry Maloghurst, and Lorgar revealed his plan to usurp the Warmaster.After sacrificing large numbers of mortal servants, Lorgar planned to unleash a psychic scream that would disorient Horus, then have Zayak order Fulgrim to attack. The Word Bearers and Emperor's Children orbiting Ullanor would finish off the Sons of Horus Legion, leaving Lorgar in total command of the Traitors' war effort.However Lorgar's coup quickly fell apart, as Actaea had already warned Horus of Lorgar's planned betrayal. Upon meeting Horus on Ullanor, Lorgar was immediately attacked before he could unleash his psychic assault, and Zardu Layak betrayed Lorgar by freeing Fulgrim from his sorcerous bindings instead of ordering him to attack.Lorgar was beaten mercilessly by Horus, who threw him his weapon and demanded he stand and fight. Lorgar refused to fight, and instead expressed pity at the monstrosity Horus had become since his recovery, as Horus had gained an ever-shifting form with a maw of dark Chaos energy at its core.Horus ordered Lorgar to leave his sight, pledging to kill him if he ever returned. The 5,000 Word Bearers of the Chapter of the Unspeaking under Lorgar's command who had followed Zardu Layak in his betrayal of Lorgar would continue to serve Horus. Lorgar left for destinations unknown, proclaiming that Horus was doomed to failure due to his weakness.Layak later conversed with Actaea, revealing that he had already forgotten all of who he had been before the recent events. He also revealed that he knew Actaea was the one who had informed Horus of Lorgar's treachery before their arrival back at Ullanor.Furthermore, Layak had investigated Actaea's past in the cult of Cyrene Valantion and found that nobody by that name had ever existed within its organisation. Layak asked just who or what exactly Actaea was, but she refused to answer.