The Outcast (Time Master Trilogy)

Tarod alone knew the nature of the supernatural force locked within his soul-and he knew that it must be thwarted, no matter what the sacrifice. Denounced by his fellow adepts as a demon, betrayed even by those he loved, he had unleashed a power that twisted the fabric of time, to put himself beyond the reach of that monstrous force and avert the pandemonium that threatened the world. He thought that nothing could break through the barrier he had created. He was wrong...