chunk: For six months Oliver toils at the oars of a Spanish galley. He befriends a Moorish slave, Yusuf-ben-Moktar. Oliver, Yusuf and the other slaves are freed when the galley is boarded by Muslim corsairs. They offer to fight for the Muslims. Oliver's fighting skills and the testimony of Yusuf, the nephew of the Basha of Algiers, grants Oliver special privileges in Muslim society. He becomes the corsair known as Sakr-el-Bahr, "the Hawk of the Sea". In this new role, Oliver rescues English slaves by purchasing them himself and releasing them in Italy.
  Oliver captures a Spanish vessel and discovers his one-time kidnapper, Jasper Leigh, as a slave at the oars. He gives Jasper the opportunity to convert to Islam and join his corsairs. With Jasper's navigational skills, Sakr-el-Bahr sets sail for England to take revenge on Lionel.