Editing Bene Gesserit (section)

===''Great Schools of Dune''===
In ''[[Sisterhood of Dune]]'' (2012), 80 years have passed since the end of the Butlerian Jihad, and an aging Raquella remains the only Sister to have survived the Agony. Ambitious young Valya Harkonnen has hopes of using her Bene Gesserit training to complete her family's vendetta against Vorian Atreides and his entire bloodline. Valya is one of the Sisters trusted with the records of Raquella's breeding program, which are maintained by a secret cache of forbidden computers, concealed in a cave outside the Sisterhood School on Rossak. Raquella's granddaughter Dorotea undergoes the Agony and becomes a Reverend Mother, discovering the truth about her parentage and the existence of computers. As a devout anti-technology Butlerian, she assists Emperor Salvador Corrino in his raid on the Rossak school. Salvador has several dozen Sisters executed and disbands the Sisterhood, except for Dorotea's Orthodox followers, who return to the Imperial capital on [[Salusa Secundus]] to serve as court Truthsayers.

Raquella has reestablished her school on [[Wallach IX]] in ''[[Mentats of Dune]]'' (2014), thanks to the help of industrialist Josef Venport. Valya, now a Reverend Mother, retrieves the hidden computers from Rossak and hopes to succeed the declining Raquella as Mother Superior. Raquella believes that the only hope for the Sisterhood to survive is for the Wallach IX sisters to reconcile with Dorotea's faction on Salusa Secundus; her health failing, she summons Dorotea to the School and forces Dorotea and Valya to put their differences aside and agree to work together for the good of the Sisterhood. Naming them co-leaders, Raquella dies; Valya however, still bitter about Dorotea's betrayal, uses her newly discovered power of Voice to force Dorotea to commit suicide. Valya declares herself to be the sole Mother Superior, and ingratiates herself to the new Emperor, Roderick Corrino.