this book is off the charts. if you dont read it, it means you dont like good books DUDE

This book taught me more about Israel-I never knew about the Mossad. This is a good book for people who like learning things. The only thing about Albert Einstein that I believe is fiction is Pandora's Box. And by the way, now I have a periodic table(when I looked in my dictionary there wasn't one)! To know what I mean by all this read the(very good in my opinion)book.

The best book. Didn't even have to read the cover to tell it was Stuart Gibbs. Great plot. Adventurous and suspenseful.

Great fast paced spy novel. With a female protagonist. A fun, interesting book full of plot twists and surprising mysteries and codes.

This is a great book. I love Stuart Gibbs. This is a must read.