The Rise of the Demon Prince — Robert Kroese

A terrifying demon has come from the shadow world to threaten the land of Orszag. Flanked by a horde of ghostly specters, the demon intends to lay waste to the city of Nagyvaros, and only one man can stop him: Konrad the sorcerer. To defeat the demon, Konrad must learn to master the power of the warlock's brand. But with enemies all around him and no time to lose, Konrad finds himself playing one foe against another in a desperate attempt to stay alive, hoping one day to wreak his vengeance on the man who destroyed his life....THE RISE OF THE DEMON PRINCE is the second book in the five-book series THE COUNTERFEIT SORCERER.