Four stars for this book is something of a compromise. For 99.9 percent of the book, I probably would have been inclined to give it five stars. After the last page and a half, I am almost inclined to drop the rating to three stars. I won't give anything away, but I will say this: After writing a very, very good book, Mr. Coben wraps it up by being too cute by half. He capped a hum-dinger of a story with an unsatisfying (and unnecessary) twist at the end. That unfortunate slip aside, this book is well conceived, well written, and a great read. (Good enough, in fact, that I'm in the process of reading another of Coben's books.) Check it out...if you can overlook an overwritten ending, you'll have a great time.