Emily is running away from home to start a new life with a new identity. We don't know why. All we know is her desperation to get away from her family and twin sister. It is a cleverly written story, one that keeps you guessing the outcome right to the very end. The story jumps backwards and forwards with the different characters, which I found slightly frustrating, but it made an ideal holiday read as once I started reading I didn't want to put it down.