The fifth sorceress - Robert Newcomb

Tristan, prince of Eutracia, knows it is his destiny to be crowned king, however much he dislikes the notion. Preferring the irresponsibilities of life as a prince in waiting, his coronation draws uncomfortably near. But his fate is sealed when his kingdom is assailed by a monstrous army, misshapen slaves of the long-banished, vengeance-seeking Sorceresses from across the Sea of Whispers. Together with his tutor, guide and adviser, the wizard Wigg, Tristan must cross this uncrossable sea and face the sorceresses in their lair - for they have taken his twin sister captive and stolen the magic of Eutracia for their own vile purposes. And on this storm-tossed journey fraught with danger, he is pressed to learn the nature of magic. For unbeknownst to Tristan, not only is he to inherit the crown of Eutracia, but also a far greater burden. For he is the Chosen One of whom the Prophecies foretold, the one upon whose shoulders rests the ultimate balance of Good and Evil in this world...