I really liked the characters in this book and the fact they used their heads to get them out of difficult situations. I also liked the history angle and the way the author wraps things up at the end. I highly recommend this book.

It was a good book, and I liked the beginning because of how the tunnel appeared.

I think this book was very full of adventure AT THE BEGINNING!!!!! Like I just said it was adventurous at the beginning and the middle parts of the book but then it ended kind of suddenly. 4/5 stars.

I liked this book because it is very cool and it is very weird at the end. I recommend you chose it (or else).

It was such an adventure!!!!!!!! There was so much action and adventure. I would definitely recommend this book!!!!!