Dead Beat

Harry Dresden, a wizard PI living in Chicago with his half-brother, who's an incubus, and his dog, Mouse, learns that his friend, a Chicago police officer specializing in occult investigations, is being blackmailed by a vampire. Unfortunately, every dark-magic wielder in Chicago apparently wants the same thing as the vampire - the spells of an unpleasant necromancer, Kemmler, whom Dresden's employers, the White Council, eliminated some years earlier. With Kemmler's spells one can summon the Erlking, the leader of the Wild Hunt, and draw on his magic to achieve godlike powers. To thwart the various ghouls, sorcerers and body-stealers in their evil quest, Dresden must turn for help to a reluctantly heroic medical examiner; a pack of werewolves; and a fallen angel, disguised as a bookstore clerk.