Warhammer, Conrad's Apocryphal Book

In that despairing fiftieth millennium, the tentacles of the Great Devourer had swept across the galaxy, the space necromancers had returned, the new Tau Empire had risen, and the shadow of chaos remained.

In that final battle, all of the emperor's loyal sons returned.

However, even with a demigod leading the empire, it was still defeated.

When the last human fell beside the Golden Throne, the Emperor rose in despair, and the Dark Lord brought end and death to everything in the galaxy.

The warp bears witness forever; the mournful cry of the Dark Lord's birth was carried along by the surging waves of the warp to the glorious years of the Great Crusade.

And Conrad Coates, the emperor's most far-sighted son, saw all of this.