Amazing book full of fun and adventure! I could read this over and over again.

Booooooo never read this book

I learned a lot about Israel and Albert Einstein from this book. I would totally read it again, and I think anyone who likes adventure or spies will love this book.

I really liked this book. This book was definitely not a quick read, but I carried it with me everywhere, and I highly recommend doing that. I couldn't help thinking that maybe the equation was two plus two, or another very easy equation that needed to be looked at a different way. This is an amazing book, and you should read it. I hope it is a series, like many of Stuart Gibbs' other books.

Stuart Gibbs’s other books are great too!!!! I love them. Favorite one so far!!!!!