 She returns to Arrakis in "Children of Dune" (1976), fearing that all is not well with her daughter Alia and the deceased Paul's twin children, Leto II and Ghanima.Lucilla is an attractive young Reverend Mother and Imprinter sent to help train the latest Duncan Idaho ghola on Gammu in "Heretics of Dune" (1984).In "" (1985) Lucilla manages to save the collective memories of the Sisterhood on Lampadas before the planet is destroyed by the Honored Matres, but is ultimately killed on Junction by the Honored Matre leader Dama.