4 BG


 * Gilbertus Albans is dragged into the Butlerian movement's anti-technology campaign by the fanaticism of his most vocal students, and the furor of Torondo, who coerces Gilbertus to serve as his special advisor. Gilbertus finds himself forced into a confrontation with his best student and friend, Draigo, who is in the service of Josef Venport's VenHold shipping conglomerate.
 * Hila and Andros decide to find Vorian and potentially convert them back to the side of the thinking machines. They go to Kepler, where they have learned he is living, and they burn his house and kill his wife, after she tells them he has gone to Arrakis. Griffin Harkonnen also goes to Arrakis to find Vorian, who is banished from a Sietch of Free Men after they are attacked, and some of them are killed, by Hila and Andros, which the Naib sees to be Vorian’s fault. Before Vorian’s banishment, Abulurd is found by the Free Men and brought to him. It is decided they will both be exiled to the desert. Griffin escapes and is saved from a sandworm by Vorian. The Naib tells Griffin and Vorian they must fight to end their blood feud. During the fight, Griffin reveals to Vorian that his wife is dead, catching him off guard and ultimately getting him at his mercy, although he decides not to kill him out of honoring, ending the feud. The two are placed in the desert hut Griffin is killed by Hila. Vorian attracts a worm which kills both Hila and Andros.
 * The Emperor Salvador is told about the Sisterhood’s computers by Sister Doretea, when she brings Anna back to Salusa Secundus. He goes to Rossak to investigate this but Raquella and Valya destroy the computer in advance, and the Emperor finds nothing. When the Sorceresses attack Salvador, he is furious and declares the Sisterhood of Rossak disbanded by Imperial decree.
 * The C.E.T. realeases a sanitized OCB with the cautious approval of the Emperor Salvador, but this does not stop the murders. Ultimately, Roderick Corrino uses them to the Imperium’s advantage, killing Dr Zhoma and pretending she has been killed as Toure Bomoko and that the DNA shows that this is the real Bomoko, born ending the riots and killings and getting rid of Zhoma.