The Master (Wildside Series)

Long ago the hobgoblin Qasim was turned to darkness, was made a master of evil. His newest plot is a sacrifice of unspeakable horror that will mean full-fledged war between all species. There exists hope to fight back. Nicholas Anthony, an ER doctor, doesn't know of his own fey blood, or that others of his kind are massing in the Nevada desert. Alienated from himself, he is a man about to discover his destiny. Magic will draw Nick to his true self - and to Zee, an enchanting beauty with dark secrets yet to be revealed. To these two is entrusted the fate of the world, their kind, and salvation from THE MASTER.