Jim Butcher. Small Favor. 2008. The tenth book in the Dresden Files series. The translation has not been published. Abstract from the translator: Those who read the series first know that Harry Dresden managed to fall into debt to Queen Mab. At first he owed her three favors, at the beginning of this book - two. And now Mab demands the return of the old debt. She calls it a “service”, I would call it “extortion”, but I wasn’t asked. So Harry has to get involved in a new story, especially since in fact this story started spinning and pulled him into itself even before the appearance of the winter queen.