Time Traveler's Wife - Audrey Niffeneger

This was my book club's book last month and it's one of my favorite books of all time. Again, not for a middle school library, but a fantastic premise. The husband in the story, Henry, is a time traveler. He travels back and forth in time. He doesn't generally know when it's going to happen or where he'll end up, and it can be a frightening experience. Claire, his wife, meets him for the first time when he time travels to her house when she's a very little girl, I think 8 years old or maybe even six. It's his story, and her story and their story and the story of time travel all woven together and it is incredible. Older high school students and grown ups who like science fiction and romance should give this one a try.