My rating: 5 of 5 stars


The premise for The Multiplying Mysteries of Mount Ten is both intriguing and humorous – what if you are heading to an art summer camp but end up at a math summer camp instead?

A rainstorm lands Esther and her stepdad, Toby, at summer camp full of math nerds, puzzles, and more than one mystery. While Esther may want to get back on the road, the weather won’t let up, and her desire to show she isn’t a dumb artist has her solving the first, challenging math problem. A new clue soon surfaces, drawing her into another puzzle and leads her to team up with the number crunchers (math nerds) to solve the puzzle and possibly save lives.

Esther is absolutely delightful. Full of opinions and spunk, her voice is hilarious. I laughed along with her ongoing commentary. I’m also a big fan of logic puzzles and brainteasers so the math challenges were fun and engaging. My boys (7 and 9) loved trying to figure out the puzzles, too.

The interactions between Esther and the various number crunchers are entertaining and so relatable. This book is perfect for a middle grade audience who enjoy humor, spunky heroines, and puzzles.



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