Magician: Master, Hardcover/Raymond E. Feist

Once he was an orphan called Pug, apprenticed to a sorcerer of the enchanted land of Midkemia. Then he was captured and enslaved by the Tsurani, a strange, warlike race of invaders from another world. There, in the exotic Empire of Kelewan, he earned a new name -- Milamber. He learned to tame the unimagined powers that lay within him. And he took his place in an ancient struggle against an evil Enemy older than time itself.