After the burning of Prospero, the primarch Magnus the Red mysteriously transported the Thousand Sons to the Planet of Warlocks in the depths of the Eye of Terror. There, far from the events disturbing the rest of the Galaxy, Cyclops looked with indifference at the flaring Heresy of the Warmaster. In search of the meaning of life, the Crimson King devoted himself entirely to preserving the knowledge from the great libraries of Tizca, hoping that humanity would once again understand the importance of enlightenment. But the sons of Magnus are already noticing changes happening to him. The soul of their primarch is split, his mind and memories are gradually dissolved in the gyres of the warp. There is only one way to restore the Cyclops: if his warriors can return to the sites of their greatest triumphs and tragedies, the Ruinous Powers will crown the Crimson King anew.