"Ten thousand years before the events of Dune, humans have managed to battle the remorseless Machines to a standstill . . . but victory may be short-lived. Yet amid shortsighted squabbling between nobles, new leaders have begun to emerge. Among them are Xavier Harkonnen, military leader of the Planet of Salusa Secundus; Xavier's fiancée, Serena Butler, an activist who will become the unwilling leader of millions; and Tio Holtzman, the scientist struggling...

"Gilbertus Albans has founded the Mentat School, a place where humans can learn the efficient techniques of thinking machines. But Gilbertus walks an uneasy line between his own convictions and compromises in order to survive the Butlerian fanatics, led by the madman Manford Torondo and his Swordmaster Anari Idaho. Mother Superior Raquella attempts to rebuild her Sisterhood School on Wallach IX, with her most talented and ambitious student, Valya...