Last Updated: September 12, 2026
Mystery at the Lighthouse
by Gertrude Chandler Warner
Strange things keep happening at the old lighthouse. Will the Boxcar Children be able to solve this mystery?
Dot Day
by Kallie George
Dot the ladybug can’t wait to celebrate her Dot Day with her friends. But when she goes to Spots’ house, she doesn’t spot anyone. Not here. Not there. Not anywhere! Dot must follow the clues to solve the mystery.
King & Kayla and the Case of the Uphappy Neighbor
by Dory Hillestad Butler
Thor is in big trouble. Mr. Gary says he knocked over his trash cans, dug up his garden, and ate some of his vegetables. King and Kayla have to clear Thor’s name and find the actual culprit.
The Case of the Stolen Drumsticks
by Dosh Archer
On the eve of the Battle of the Bands, Vinnie “The Crash” McLaren’s best drumsticks are stolen, and it is up to Detective Paw and Patrol Officer Prickles to determine which of Vinnie’s neighbors is the thief.
The Mermaid Park Mystery
by Arthur Brown & Douglas Sloan
Purple pears are being stolen! Can Barbie solve the Mermaid Park mystery?
The Case of the Missing Painting
by Dosh Archer
Detective Paw and Patrol Officer Prickles must track down who stole a painting from the Big City Art Museum.
Flat Stanley and the Missing Pumpkins
by LoriHaskins Houran
Working on his uncle’s farm in the fall, Flat Stanley searches for answers when pumpkins start to disappear right before the county fair.
Pedro’s Mystery Club
by Fran Manushkin
Pedro forms a new club with his friends dedicated to solving mysteries–and the first two assignments are finding his mother’s locket, and his father’s cell phone.
Young Cam Jansen and the Knock Knock Mystery
by David A. Adley
Eric’s Grandma Minnie and Grandpa Max keep hearing someone knock at their door, night and day, but find no one there, so Cam tries to solve the mystery using her amazing memory.
Case of the Missing Sparkle-izer
by Bill Scollon
When Minnie’s sparkle-izer turns up missing, her nieces, Millie and Melody, search for it.
The Mystery Coins
by Anita Yasuda
Using Ty the Tyrannosaurus Rex’s new invention, the Dino Detectives find a bag of strange coins at the beach and trace them back to a carnival.
The Mixed-Up Mail Mystery
by Erica Ferber
When Huckle finds an old letter in a library book, he and his friends set out to deliver it.
Zelda and Ivy: The Big Picture
by Laura Mcgee Kvasnosky
After fox sisters Zelda and Ivy and their best friend Eugene watch the new Secret Agent Fox movie, they are inspired to do some detective work then practice their new skills when rain threatens their campout plans.
The Case of the Shifting Stacks
by Robin Koontz
During Furlock and Muttson’s trip to the library, the librarian has a mystery. The books have been moving to mysterious places by themselves. Can they follow the clues to solve the case of the shifting stacks?
Bones and the Roller Coaster Mystery
by David A. Adler
Junior sleuth Jeffrey Bones and his grandfather enjoy a day at the amusement park until their tickets to ride the giant roller coaster mysteriously disappear.
Young Cam Jansen and the Speedy Car Mystery
by David A. Adler
Cam Jansen uses her photographic memory at the school Green Fair to solve a mystery involving a missing electric car.
Mr. Putter & Tabby Write the Book
by Cynthia Rylant
During a big snow, Mr. Putter decides to write a mystery novel, but what he ends up with is entirely different.