Warlock of the Witch World

The half-Earthling, half witch-brood descendants of Simon Tregarth: Kyllan the warrior, Kaththea the untried witch, Kemoc, whose powers could surpass all others - face the sorceries of an unknown enemy. The burden of the struggle falls to Kemoc, who is forced to summon his untested powers in the battle to match the alien evil threatening the Witch World.