Friend's Email: Subject:I have found a book that I think you would enjoy
Warlock of the Witch World (Witch World: Estcarp, #4)
Warlock of the Witch World - Witch World: Estcarp, #4 Author:Andre Norton Torn asunder by the sorceries of the Escarp Witches, the three children of Simon Tregarth -- Kyllan the warrior, Kaththea the unordained witch, and Kemoc, whose dormant powers may surpass even the wonders of his kin--face extinction by their brutal separation. — Kemoc challenges even the Great Ones from beyond the stars, as he roams the uncharted... more » wilderness to reunite the triple destinies of his family as they stave off encroaching doom.
Fourth book in the 'Estcarp Cycle' of Witch World novels.« less
From the blurb: "Kyllan the warrior, Kaththea the untried witch, Kemoc, whose powers could surpass all others - these are the half-Earthlings, half witch-brood family menaced by the sorceries of an unknown enemy.
The burden of the struggle fell to Kemoc, who was forced to summon his untested powers in the battle to match the alien evil threatening the Witch World"
I highly recommend reading the preceeding books in the series before you read this one.