Jim Butcher's The Dresden Files: Wild Card #6

The conclusion! Trickster demigod Puck has cut a swath of paranoia and destruction through Chicago, setting the White Court of Vampires against the Mob against the Police. If Puck is to be defeated, Harry Dresden is going to have to convince these three factions to work together. But with each sensing a chance to cripple their opponents, is this even possible?