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Otto and Sheed are the local sleuths in their zany Virginia town, masters of unraveling mischief using their unmatched powers of deduction. And as the summer winds down and the first day of school looms, the boys are craving just a little bit more time for fun, even as they bicker over what kind of fun they want to have. That is, until a mysterious man appears with a camera that literally freezes time.

There are dinosaurs in Spooksville! Huge meat-eating lizards attack people in their cars. Flying reptiles swoop down and lift kids away. But where did these dinosaurs come from? Adam and his friends discover a doorway that connects present-day Spooksville with 60 million years ago. It’s through this portal that the dinosaurs are emerging and attacking the town. Who created the passageway? And can it be closed before all of Spooksville is destroyed?

Florian is 12 years old and has just moved to Washington. He's learning his way around using TOAST, which stands for the Theory of All Small Things. It's a technique he invented to solve life's little mysteries. But when he teaches it to his new friend Margaret, they uncover a mystery that isn't little. In fact, it's huge, and it involves the National Gallery, the FBI, and a notorious crime syndicate known as EEL. Can Florian decipher the clues and finish his homework in time to help the FBI solve the case?

Now that Andi is no longer running a hotel for dogs, she decides to start a new project -- a newspaper for dogs! With her brother Bruce and a few friends, the kids make a hit out of their paper. But they also attract the attention of some mysterious dognappers. Can the kids find the criminals and bring their dogs safely home?

More mystery, more bravery, more danger, and one amazingly reckless rescue await in the second book in the Explorers series! The perfect read for fans of The Name of This Book Is a Secret and The Mysterious Benedict Society! Reader! Your attention is greatly needed. We have left things...

The perfect series for kids who loved THE LEMONADE WAR series and are ready for more mysteries! "With wit, cunning, snappy dialogue and superior math skills, The Red Blazer Girls represent the best of girl-detectives while still feeling relatable and real. Nancy Drew would be right at home...

Grab your sunnies and your magnifying glass, and join the Murder Club for more sensational short stories as they lead you on a journey of foul play and murderously magnificent mysteries! This is the perfect holiday entertainment and collection for young listeners!

Meet Deja, a creative, compassionate 3rd grader with a secret dream to transform her school. With a little bit of help from an unlikely source, she acquires a secret superhero identity and unique powers. She's now an unstoppable undercover superhero, known as Donut Girl. She laces up her purple sequin high-tops and gets to work. Armed with sprinkles, icing, and love, Deja is a formidable force against the evil powers spreading unrest within her school.

Lila Greer has always loved mysteries, even when they scare her. When a spooky storm blows into Blue River Creek and Lila is startled awake by a strange shrieking shadow, she knows something is afoot. Stranger still, Lila and the Questioneers discover that on the night of the storm, someone broke into Iggy’s parents’ art gallery and stole all the paintings for the new exhibit. Could the mysterious shrieking shadow have something to do with the missing artwork?

A New York Times bestseller! In the tradition of Nancy Drew, four kids and one grandfather in Miami tackle a decades-old mystery in this first book full of “atmosphere, history, and lively humor” (Publishers Weekly, starred review) in the Sherlock Society middle grade series from New York...

With the adventures set forth in the first books now behind them, Kingdom Keepers 3: Disney In Shadow follows the five teens, Finn, Philby, Willa, Charlene, and Maybeck as they search to find Wayne, their mentor and head Imagineer who has mysteriously gone missing. Concerned Wayne has been abducted by the Overtakers—Disney villains, who along with other Disney characters, take over the parks when the turnstiles stop spinning, and want desperately to steer the parks to a far darker place—the five kids pick up a major clue from a close friend, Jess.

In the thirteenth book in Stuart Gibbs’s New York Times bestselling Spy School series, superspy middle schooler Ben Ripley goes off the grid to eliminate a cybersecurity threat. After a devious computer hacker pulls off the CIA’s worst-case scenario, shutting down power networks all over the...

Life is lonely in Queen Victoria's London, especially for a talking vole. Chains may be the equal of any human detective, but there's one case he can't solve: where he came from and why he can speak. Luckily, he has the help of Eldridge, the retired investigator he lives with. Their latest job—a shipload of missing fish destined for experimentation—might provide some needed answers. But when Eldridge is kidnapped, Chains is left without sanctuary at a time he badly needs friends. Especially with profiteers, scientists, and pirates from London's mad scientific underbelly after his hide.

When Ned is cast in a stage production of Macbeth, led by the famous but peculiar director Bear Larouche, Nancy volunteers to help with the set. She’s also allowed to sit in on a few rehearsals, where she gets an earful from the director about theater superstitions: never say “Macbeth” out loud—only refer to it as “The Scottish Play”—never wear blue, no peacock feathers onstage, and so on. The play is off to a promising start until Ned breaks the most important rule and accidentally says “Macbeth” in the theater.

When Claude's little sister, Amity, runs off in forbidden Badwell Woods—where children disappear—Deliah, Sam and Claude follow her to a mysterious mansion. Inside, time has frozen in the 1930s and an invitation promises a devious party game. Not long after they find a terrified Amity, hiding from 'ghosts', the floor beneath their feet starts to twist and turn: the rooms are changing places. The house has rearranged itself like a giant Rubik's cube. To escape, they must solve the puzzle—and the century-old mystery of a girl who disappeared.

Katie Woo and Pedro are hot on the trail of a treasure map. But as it catches in the breeze, it keeps disappearing on them. Will they be able to nab the map and will it lead them to real treasure?

After getting in trouble with his parents over the mayhem in MacRitchie, Sherlock Sam was forced to disband the Supper Club. However, his arch-nemesis continues to taunt him. This time, the top-secret final script of Singapore's most popular television series is stolen! Can Sherlock Sam, Watson...

When the class takes a field trip to the opera, they meet a strange man playing violin in the orchestra whom they believe could be the phantom who haunts the Bailey City Opera House.

Theodore Boone is back in a new adventure and the stakes are higher than ever. When his best friend, April, disappears from her bedroom in the middle of the night, no one, not even Theo Boone—who knows April better than anyone—has answers. As fear ripples through his small hometown and the...

The Boxcar Children know how much work it takes to live in the wilderness. They also know how much fun it can be! The children love exploring and learning new things at a primitive skills summer camp. But when strange things start happening around the camp, they need to use another of their favorite skills - mystery solving!