This book was amazing. At first I thought it was going to be too much science stuff but it wasn't!! If you like mysteries and action this is right up your alley!!! This is the first book in the series and the other books are just as good!!!

It was okay. I wouldn't read it again.

I really like this book. When I read I couldn't wait to see what happened next. I am now excited to read more books from the author Stuart Gibbs.

This was the first book I read by Stuart Gibbs. Afterword I went to the library and checked out the second and more Stuart Gibbs books.

I think that it s a good book because it keeps you on edge all the time. And I also like the author stuart gibbs.