This is a mysterious book about two kids named James and Emily. They've heard of something called the Unbreakable Code, something that no one has solved... ever. As they become more and more into solving it, the two kids start to suspect. Someone, it seems, is attempting to stop them, trying to steal the treasure that apparently is led to by the Unbreakable Code, to use it for purposes that are quite unknown. Can the kids stop this thief? Or will they be too late? Read this book to find out...

This book was very mysterious with lots of interesting suspense, so it gets a four. Review by: UAC