Summer Knight: A Novel of the Dresden Files (The Dresden Files, Book 4)

Harry Dresden's faced some pretty terrifying foes during his career. Giant scorpions. Oversexed vampires. Psychotic werewolves. All par for the course for Chicago's only professional wizard. But in all Harry's years of supernatural sleuthing, he's never faced anything like this: the spirit world's gone completely postal. All over Chicago, ghosts are causing trouble--and not just of the door-slamming, boo-shouting variety. These ghosts are tormented, violent, and deadly. Someone--or something--is stirring them up to wreak unearthly havoc. But why? And why do so many of the victims have ties to Harry? If Harry doesn't figure it out soon, he could wind up a ghost himself Now that his girlfriend has left him, professional wizard Harry Dresden can't pay his rent and alienates his friends. He's soon approached by the Winter Queen of Faerie with an offer he can't refuse--all he has to do is find out who murdered the Summer Queen's right-hand man, the Summer Knight, and clear the Winter Queen's name. Soon, Harry finds out that the fate of the entire world rests on his solving this case Harry Dresdon is down and out in Chicago. His life has become a disaster zone, and he has the opportunity to improve his run of bad luck. this is done by finding out who murdered the summer Queen's right-hand man, the Summer Knight and clear the Winter Queen's name queen