I love this book so much because the main character is super smart. Klaus adds a nice bit of silliness talking about robots and Max has brilliant ideas like installing solar panels on wind turbines!

This book was so fun to read! There was lots of adventure and mystery. I couldn't stop reading! The book was so good that as soon as I finished it I went out to get the next two books in the series! If your into mysteries, adventure, and learning new things, you should definitely read this book.

When I started to read, I was still buried in it hours later! Hey James Patterson, please publish more in the 2-book series!!!

If you like a thriller and a mystery then this is for you! this is a great book. would recommend for 3rd to 6th grader. would defiantly read again!!!!

Boring