Urus Noellor--a boy born deaf who is about to be publicly branded as a burden, incapable of being the warrior his people demand--stands upon a rooftop, poised to throw himself over the edge. His failed attempt at suicide unlocks within him a long-dormant form of magic thought to have died out thousands of years before, a power that may be the key to saving the world from an equally ancient enemy. Urus and his companions--Goodwyn, the greatest warrior in Kest, and Cailix, a mysterious orphan--must find a way to stop a powerful group of sorcerers from destroying the five long-hidden vertices that ward the world against threats from beyond, while fighting off threats from within. They soon learn that the scope of the coming danger may be more dire than any of them could have imagined. As the battle for the vertices spreads to the neighboring realms, Goodwyn must face the realities of war and death; Cailix discovers a devastating truth that could change everything; and Urus discovers his uncanny gifts and courage as he peels away clues to his true identity. But even as Urus gains the power he has always craved, he experiences it all in profound, lonely silence.