by Christopher Stasheff

Magnus D'Armand, the renegade son of Rad Gallowglass, Warlock of Gramarye, has set out to prove himself twice the hero his father was. Magnus has asked his sentient starship to find him a world in need of revolution. But on the lost colony world of Petrarch, Magnus finds more than he's bargained for in a warring prince and a mysterious rival from his past.