In 2001, the warlock Zile intended to gain the powers of the Charmed Ones by turning Prue Halliwell evil through marriage. He worked with Dantalian to perform the ceremony, though she betrayed him and placed both Zile and Prue under her control. As the sisters were connected to each other and the Book of Shadows, the evil spread until all were corrupted. When the Book of Shadows had turned completely evil, Dantalian stole it from Piper and Phoebe and tried to use this spell to kill Prue. However, her spell was interrupted by the arrival of her sisters.