The Gathering by Kelley Armstrong
I felt like the story was just getting started all through this book. Then, there was an incredibly abrupt ending, basically in the middle of a scene. I was actually startled when the “you’ve finished this book” page popped up, because I was expecting the next page of the scene. There were some really good parts, and I loved the descriptions of small town living, but I was left feeling like I didn’t get a full story.