this was a really good book and I would recommend this!

When I saw this, I already loved Stuart Gibbs, so I knew the book would be awesome. And it didn’t disappoint, in fact, I liked it’s adventure and overall theme so much I read the second one in the series immediately after I had finished reading the last equation

I loved this book!!!

I loved this book book so much I got the sequel.

If you have ever read any book that Stuart Gibbs made you will know that she is an amazing and fantastic author making this book no exception. Charlie Thorn and the last equation is a book filled with secrets, adventures, action and a bit of romance. I would recommend this book to everyone who is reading this. If you do read the book you should also read the others in the series.