Luther was despairing and furious, swearing to fight for Caliban until the very last moment. Just then, Tzeentch's followers came calling and began fanning the flames.
Back and forth it went, until cracks formed in Luther's heart. Chaos corruption followed close behind, leading him further and further astray.
Later, when the Horus Heresy ended and the Imperium lay in ruins, Lion El'Jonson, weary and guilt-ridden for having missed the Battle of Terra, prepared to return home for a look around and soothe his wounded heart.
Then he saw it! Well, well! His hometown was crawling with traitors!
Lion El'Jonson's blood pressure soared. Like Perturabo when word of Olympia's rebellion had snapped his sanity, the only word echoing through his mind was kill.
The traitors on Caliban were rather different from those elsewhere. They perfectly inherited its chaotic diversity, leaving Tzeentch thrilled.
Some followed Luther, shouting, "Lion El'Jonson abandoned Caliban! We must reclaim our glory and sovereignty!"
Some were loyal to Caliban's old traditions. Though they had doubts about Luther's actions, betrayal had never crossed their minds. They merely thought there had been a little friction between him and the Lion El'Jonson they revered, nothing serious.
Others were loyal to the Imperium—or rather, to Astartes Supremacism. Once the Imperium's Great Crusade was complete, they intended to govern worlds as Space Marines, much as lords ruled over commoners.
Astelan was one such man. As a Terran-born warrior, he deeply resented Luther's covert suppression and even held considerable grievances against Lion El'Jonson. After all, Luther and Lion El'Jonson appeared to have an inseparably close relationship; seeing Luther was the same as seeing Lion El'Jonson himself. They shouted, "Long live the Emperor! Long live the Imperium!" and led Terran-born veterans to confront Luther, intending to discuss the matter of conditional independence.
Then there were