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I dont get why warmasster Horus betrayed the emperor

9.9K views 10 replies 8 participants last post by  Oiad  
Yeah I can remember reading Xerxes version somewhere. That in order to get a new planet to join the Imperium they asked him to join their cult of warriors or something like that. He did so but the cult turned out to be chaos and slowly corrupted him (in secret of course).

And then he left with a hint of chaos in him and thats all it took...