I loved this book. It was filled with science and math. It was also about Albert Einstein. If you love these things, you are SURE to love this book.

If you don't read this I will eat your cupcake... so PCK this BooK

I really love this book! It is full of action and mystery. Charlie is such an amazing character. This book is truly a masterpiece of a novel. I've read it so many times and every time I read it I find something new about this story. You should definitely read this book!

This is a great book and the adventure is so interesting. I recommend this book to everyone.

This was one of the best PJ library books I have ever read. I love science and it is really like sciencey (I made that word up) and you learn a lot about Albert Einstein. If this is not a choice and you want to read it, go to amazon.