Stuart Gibbs Level Up. The name of the book is Charlie Thorne and the Last Equation. However, when we were reading it that’s what we kept thinking of the book in our head. Stuart Gibbs, the author of Spy School book series that upper elementary and middle students love has really upped his game with Charlie Thorne. This is the series that fans of Spy School need if they want their action and story just a bit older than Ben Ripley. A side vision in my mind had Gibbs thinking to himself, “You want a book that has more action and will demo just slightly higher? Take that!” He’ll then drop the mic and challenge someone to a dance off in the street.
Charlie Thorne and the Last Equation is middle school (and up) spy gold