To conquer the world, the fiery alien Pyron assembles an army of supernatural beings with magical powers: the DarkStalkers! And two of the biggest and vilest lead Pyron's army: Demitri Maximoff, Lord of the Vampires, and Morrigan Aensland, a powerful succubus. Yet the fate of the world depends on a human, Harry Grimoire. If Harry can master his secret magical legacy and the intricacies of alien computer technology, the world might have a chance!