If you haven't yet read Gone by Michael Grant then why not? It is an amazing book that will have you gripped from beginning to end. The sequel, entitled Hunger, is due for release at the beginning of January so you still have time to read Gone.
I will definitely be reading Hunger when it is released, and I will post a review on here. In the meantime, to whet your appetite, here is the recently released trailer video for Hunger..... enjoy!