Paul soon molds the Fremen into a massive army with which he hopes to retake the planet from Imperial rule. The Fremen have their own "wild" Reverend Mothers, women who undergo their own version of the spice agony to awaken their Other Memory. Jessica undergoes the ritual of spice agony and replaces the dying Fremen Reverend Mother. But Jessica is pregnant during the ordeal, exposing the fetus to the same awakening of ancestral ego-memories. A child born this way is called an Abomination by the Bene Gesserit, because experiencing this heightened awareness before they have formed a personality of their own makes them vulnerable to eventually being overtaken by one of their ancestral personalities. Jessica's daughter Alia, a full Reverend Mother from birth, is a grown woman in a child's body. Paul's Fremen seize control of Arrakis from Shaddam and the Harkonnens, and Paul accedes to the throne as Emperor.