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Mystery Middle Grade – Wonderlit | Wonderlit

Browse → Middle Grade → Interests → Mystery

Mystery Middle Grade

Explore middle grade books about mystery for children.

360 books

Cover of Secret Agent

Geronimo Stilton #44

Elisabetta Dami

Nervous mouse Geronimo Stilton reluctantly trades his quiet life for a high-stakes undercover mission in this fast-paced

Cover of The Golden Sands

Evie's Magic Bracelet #7

The Golden Sands

Jessica Ennis-Hill, Elen Caldecott

A magical bracelet allows Evie to see golden magic everywhere, leading her and her friends into a high-stakes challenge

Cover of Don't Care High

Don't Care High

Life at a pathologically apathetic high school gets a massive jolt when a new student begins manipulating the school's s

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Popular Series in This Category

Geronimo Stilton

2 books in this category

2 books in this category

2 books in this category

Cover of From the Mixed-Up Files of Mrs. Basil E. Frankweiler

From the Mixed-Up Files of Mrs. Basil E. Frankweiler

E.L. Konigsburg

Claudia and Jamie run away from home to live inside the Metropolitan Museum of Art, turning a famous New York landmark i

Ages 8–12

Cover of Goes South

Thirteen-year-old Ben Ripley heads to Mexico on a high-stakes mission to stop the CIA's most dangerous enemy, the evil o

Cover of Baby-sitters on Board!

The Baby-Sitters Club Super Special #1

Baby-sitters on Board!

Pack your bags for the ultimate road trip to Florida and the Bahamas as the sitters juggle summer romances, secret admir

Cover of The Journey to the Lion's Den

Thea Stilton #16

The Journey to the Lion's Den

A safari through the Kenyan savanna turns into a rescue mission when the Thea Sisters must track down a kidnapped lion c

Cover of The Ostrich Conspiracy

Platypus Police Squad #2

The Ostrich Conspiracy

Jarrett J. Krosoczka

Platypus detectives Rick Zengo and Corey O'Malley must race to stop a saboteur at the grand opening of the world's large

Cover of The Frozen Fiasco

Thea Stilton #25

The Frozen Fiasco

A famous mystery writer has vanished in Iceland, leading five mouse sisters on a dangerous trek through icy landscapes t

Cover of The Castle Crime

A to Z Mysteries Super Edition #6

The Castle Crime

The Queen's jewels are missing from Windsor Castle, and it is up to Dink, Josh, and Ruth Rose to hunt for clues that Sco

Cover of Insignificant Events in the Life of a Cactus

Life of a Cactus #1

Insignificant Events in the Life of a Cactus

Aven was born without arms, but moving to a rundown western theme park brings a new mystery and unexpected friendships t

Cover of Jordan Kingston and the Unknown

Jordan Kingston #1

Jordan Kingston and the Unknown

You will learn about the mysterious history of Roswell, crop circles, and the theory that ancient visitors once guided h

Cover of For Freedom: The Story of a French Spy

For Freedom: The Story of a French Spy

Kimberly Brubaker Bradley

While training to be an opera singer in occupied France, a brave teenager uses her travels to gather vital secrets for t

Cover of Friiight Night

Goosebumps SlappyWorld #15

New kid Kelly Crosby has already annoyed the monster in the school basement, and now he might be the guest of honor at t

Cover of British Invasion

British Invasion

On the run from the CIA and MI6, Ben and his friends race across the English countryside to track down the leader of the

Cover of Waste of Space

Moon Base Alpha #3

Thirteen-year-old Dash races against a ticking oxygen supply on Moon Base Alpha to uncover the truth behind a mysterious

Cover of The Shimmer

Kingdom Keepers: Inheritance #1

The next generation of Kingdom Keepers must step up when they find themselves following the mysterious and dangerous foo

Cover of Happy Birthday, Geronimo!

Geronimo Stilton #70

Happy Birthday, Geronimo!

Elisabetta Dami

Geronimo Stilton’s birthday takes a turn for the worse when a prankster swaps his money for phony bills right before the

Cover of Mac Undercover

Mac B., Kid Spy #1

The Crown Jewels are missing! Young secret agent Mac B. is on a globetrotting mission for the Queen to recover the stole

Cover of The Ghost at Dawn's House

The Baby-Sitters Club Graphix #9

The Ghost at Dawn's House

Ann M. Martin, Gabrielle Epstein

Spooky noises and mysterious happenings convince Dawn there is a ghost in her house, prompting a brave investigation to

Cover of Memory Maze

The Hypnotists #2

Powerful young hypnotist Jackson Opus is on the run from an enemy who wants to use his mesmerizing skills for evil in th

Cover of Wrecker

Florida Middle Grade Novels #7

Wrecker finds himself caught in a dangerous net of grave robbers and smugglers, forcing him to navigate a murky world to

Cover of Last Panda Standing

Platypus Police Squad #3

Last Panda Standing

Jarrett J. Krosoczka

Detective Rick Zengo must protect a mayoral candidate without his usual partner, forcing him to navigate a maze of threa

Cover of River Secrets

The Books of Bayern #3

For the child who feels like the 'extra' one in their group of friends, or the one who worries their only value is what

More Formats for Mystery

Chapter Books(3197)Young Adult(767)Graphic Novels(229)Early Readers(68)Picture Books(46)Poetry(6)

Mystery by Age Group

Mystery Books for Ages 0–3(153)Mystery Books for Ages 12–18(5386)Mystery Books for Ages 4–7(1713)Mystery Books for Ages 8–11(4980)