Mysteries for Tweens

Whether you prefer your mysteries cozy or creepy, puzzling or paranormal, the library has them all. This list features a wide array of middle grade mysteries.

Updated July 23, 2024
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Far out!
Bustard, Anne
Paper Book
From the author of Blue Skies comes a lively middle grade novel about a young, alien-loving girl trying to clear her grandmother's name in this mystery that has humor, hijinks, and heart in equal measure. It's 1964, the Space Race is well underway, and eleven-year-old...
The body under the piano
Jocelyn, Marthe
Paper Book
Aggie Morton lives in a small town on the coast of England in 1902. Adventurous and imaginative but deeply shy, Aggie hasn't got much to do since the death of her beloved father... until the fateful day when she crosses paths with twelve-year-old Belgian immigrant Hector Perot and discovers a dead...
Chester Keene cracks the code
Magoon, Kekla
Paper Book
Cracking the code isn't all it's cracked up to be in this scavenger hunt adventure from a Coretta Scott King Honor-winning author. "Delivers a truly fresh mystery -- along with a heist, some heartbreak, some unforgettable characters and plenty of laser tag." --The New York Times...
Greenglass House
Milford, Kate.
Paper Book
New York Times Bestseller * National Book Award Nominee * Winner of the Edgar Award for Best Juvenile Mystery It's wintertime at Greenglass House. The creaky smuggler's inn is always quiet during this season, and twelve-year-old Milo, the innkeepers' adopted son, plans to spend his...
The Fairfleet affair
Saxton, K. H.
Paper Book
 Follow clues, solve puzzles, crack the code... find the missing millionaire.   The celebrated museums of the Fairfleet Institute are known for curating the mysteries of humanity. But they don't solve mysteries. Luckily, twelve-year-old friends Alex...
Me and Sam-Sam handle the apocalypse
Vaught, Susan
Paper Book
"Edgar-winning Vaught, a neuropsychologist, has both personal and professional experience to draw on in crafting a narrator who is admirably smart and resilient despite an 'itchy' brain and a compulsion to count things." --Booklist (starred review) "Deeply smart and...

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