"The worm-eaten masters had long abandoned land. They moved through the spheres with alacrity, seeking newilian opportunities. But they encountered a new enemy: an invisible inimical force that overwhelmed them without fail. It was a force that infiltrated their brains, that turned them into demons. They did the only thing they could: they fought back. But it was a losing battle. The demons won; the masters couldn't resist them. They turned into monsters, cannibal protégés of their own dark gods. These days, few remember the old masters; they are gone, marginalized and forgotten. But their memory remains, preserved in thearchives of the artilleries and thememory of the prophets."
Muad'Dib