Jim Butcher's The Dresden Files: Ghoul Goblin

Harry's traveled from his home turf of Chicago to investigate a series of inexplicable murders in a small Missouri town. He's already managed to turn half the burg against him, with the other half's motives even murkier. And that's not even taking the Ghoul and Goblin who've both separately nearly killed him. Unfortunately, they may have succeeded in murdering the eldest of the cursed family he's trying to protect-a man who harbors his own dark secrets. It's time for Harry to seek the help of a higher authority?