 In "Dune" (1965), Margot warns Lady Jessica about the threat to her son Paul Atreides, and later seduces Feyd-Rautha on orders from the Sisterhood to retrieve his genetic material through conception.Miles Teg is the former Supreme Bashar of the Bene Gesserit, pulled out of retirement in "Heretics of Dune" (1984) to help train the newest Duncan Idaho ghola.He is replaced by his own ghola in "" (1985).