This is the second book I have read by this author in the past week, and both have been fantastic. Abby and Tom's daughter Caitlin goes missing while walking their dog Frosty. Four years later she reappears and we get to see how a family deals with their child's disappearance and subsequent reappearance.
There are some twists and turns, but I wouldn't say it was overly "mysterious" Overall though I really enjoy this one. This author has such effortless writing style which makes his books very readable, and pulls you into the story from page one.