(The review is from a 10-year-old child). This book is wonderful, it had adventure, action, and suspense. It's fantastic, I recommend you to get it 1000% and if you haven't read the previous ones, read them, I'm sure you will like them, especially if you are kids, believe me, you will love it! I have read it and I can't get enough of reading it again, I mean no matter how many times I read it, it has the same adventure and action even though I have read it before, and if you liked it, get the next ones, the adventure at sea, the adventure in the mountains, the adventures on the ship, and many more! In my opinion, it's worth its money. My favorite, I have to tell you from what I have read, is the adventure in the Valley and the adventure on the island so far, because I will continue reading them until the whole series is finished. Get it and I'm sure it will surprise you.