In the ninth and final volume in the Legacy of the Force series, Luke Skywalker faces the difficult decision to destroy Darth Caedus--formerly his peace-loving nephew Jacen Solo--while Jacen's twin sister, Jaina, must fulfill her destiny as the ''Sword of the Jedi,'' joining her parents and others on a quest to confront the tyrannt who had once been her twin brother. 200,000 first printing.