"The Maze of Bones" is really good! I bought this book at a book fair, and at first I wasn't sure if it was going to be very interesting, but once I hit the chapter about the choice of the mnillion dollars or the clue, things started getting MUCH more interesting. What I love most about this book and "The 39 Clues" series is that the books take you around the world, and there are lots of true and interesting facts about famous places and people throughout the series