Promises to Keep — Amelia Atwater-Rhodes

The compendium of creations (SingleEarth, the Bruja guilds, the Midnight empire) intertwine in an exciting, unsettling plot featuring happenings both accidental and deliberate that will forever change the alternate landscape inhabited by vampires, Tristes, shapeshifters et al. It all begins with a wrong turn and a crashed party, and from there it's an epic clash of elements and the promise of more chaos still to come. At the center of the storm is Jay, a young vampire hunter that no one would ever have predicted might be earth's best bet to thwart the rise of a vampire-controlled slave empire called Midnight. Teens will find themselves drawn to Jay, who struggles to prove his worth even while he has his own fears that those who have written him off may be right to do so.