It was so good I want the next book in the series!!!!!!!!!!!!

I liked this book because it had a lot of action and mysteries to solve. Charlie reunites with her brother and they must solve a case that Einstein designed so that only a high IQ person could figure it out. Even though Charlie was only 12 years old she was able to be helpful and useful and proved to be a good person in her brother's eyes.

THIS was a amazing book that I read 30-40 times, you'll love it if you like action, and a little comedy. I've said it before; I'll say it again: BEST BOOK EVER!!!!!!!

This book is amazing! When Charlie Thorne is hired from the CIA to stop a terrorist group from stealing "Pandora", she is put into so much trouble... Will she secure "Pandora" Read this book to find out!

This book was confusing and I had to read it a few times to understand. It was still a good read but I don’t recommend it.