Frank Herbert

At the end of Chapterhouse: Dune--Frank Herbert's final novel--a ship carrying the ghola of Duncan Idaho, Sheeana (a young woman who can control sandworms), and a crew of various refugees escapes into the uncharted galaxy, fleeing from the monstrous Honored Matres, dark counterparts to the Bene Gesserit Sisterhood. The nearly invincible Honored Matres have swarmed into the known universe, driven from their home by a terrifying, mysterious Enemy. As...