Small Favor is the 10th of Jim Butcher's Dresden Files novels. I'm only half-way through, but I have to note that once again, Butcher combines some cringe-worthy sentence level writing with top-notch large-scale plotting. One example of the former is that we when Thomas shows up about two chapters in, we're told that he now carries a krukri (hope I'm spelling that right). About five chapters later, we're told that Thomas now carries a krukri and that it's a Ghurka knife. It's hard to believe that the copy editor didn't switch the order of the two sentences (or kill the repetition altogether; it's not exactly a major plot point).
As usual, listening to these is the way to go. Butcher writes as if Harry is telling us the story, and Marsters manages to make the infelicities sound as if Harry just slipped up a little in the telling.