 Through this arrangement the Sisterhood seek influence over the Imperial throne by ensuring that Shaddam will never have a son.In "", Margot seeks out the Fremen on Arrakis in search of a group of Bene Gesserit sisters working on the Missionaria Protectiva, including the Reverend Mother Ramallo, who had previously disappeared.The manual from a Fremen desert survival pack called a fremkit, similar to the Bene Gesserit Azhar Book but "adapted to Fremen ways", indicates to Margot that the Bene Gesserit have integrated themselves into Fremen society and implanted the myths of the Missionaria Protectiva into Fremen culture.