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When Henry and his big dog Mudge see a spy kit for sale, they know right away that it’s time to break open the piggy bank. With their spy hat and magnifying glass and secret code card, Henry and Mudge can flirt with danger, steal secrets, and start cracking codes.

“Combines Alex Rider’s espionage skills with a huge dose of the sarcasm of Artemis Fowl.” —School Library Journal Can an undercover nerd become a superstar agent? In the first book in the New York Times bestselling Spy School series, Ben Ripley sure hopes so—and his life may depend on...

What's a contest without a prize? Aunt Molly has entered a joke-telling contest at a local comedy club, and Cam; her best friend, Eric; and Mr. Jansen are in the audience to watch her perform. The prizes are exciting, but the competition is stiff - there's a prop comic, a knock-knock joker, and more! As the show starts, Cam notices that one of the prizes, an engraved silver plate, has disappeared. Suddenly, everyone in the club becomes a suspect.

Happy Silverman is more than a little excited for his class trip to the museum. He loves learning about Ancient Egypt and can't wait to see real mummies. At the museum, Happy leans as close to the mummy display as he possibly can—and something strange happens. His head spins and he hears an unfamiliar voice ringing inside his mind. The mummy is inside Happy's brain and need his help—or else!

Belle vit dans un magnifique château avec la Bête et tous les objets enchantés qui ont pris vie. Mais il y a encore plus étrange dans ce château. Des pétales de roses et des feuilles de rosiers commencent à apparaître mystérieusement dans des endroits inattendus. Belle et ses compagnons, Big Ben, l’horloge, et Lumière, le chandelier, se lancent dans une quête pour arrêter le coupable.

夢水清志郎は名探偵。表札にも名刺にも、ちゃんとそう書いてある。だけど、ものわすれの名人で、自分がごはんを食べたかどうかさえわすれちゃう。おまけに、ものぐさでマイペース。こんな名（迷）探偵が、つぎつぎに子どもを消してしまう怪人「伯爵」事件に挑戦すれば、たちまち謎は解決……するわけはない。

Darkus is miserable. His dad has disappeared and now he is living next door to the most disgusting neighbours ever. A giant beetle called Baxter comes to his rescue. But can the two solve the mystery of his dad's disappearance, especially when links emerge to cruel Lucretia Cutter and her...

The #1 bestselling Magic Tree House series is ready to whisk you away through time with Jack and Annie! Magic Tree House #35: Camp Time in California The magic tree house whisks Jack and Annie to the Yosemite National Park in 1903. They are surprised to join John Muir and President Theodore...

Judy Moody is in a mood. A sleuthing, Nancy Drew kind of mood. So what’s a WBMS (world’s best mystery solver) to do? Go find a mystery, that’s what! And she doesn’t have to snoop for long: when Mr. Chips, a beloved crime-dog-in-training, goes missing, Judy Drewdy and her chums, agents Dills Pickle (Frank), Spuds Houdini (Rocky), and James Madagascar (Stink) find themselves smack-dab in the middle of a real-life, scare-your-pants-off whodunit. Was Mr. Chips stolen by dirty dognappers? And why are chocolate-chip cookies disappearing all over town?

A New York Times bestseller! A GMA3 Summer Reading Squad Selection! “Ingeniously plotted, and a grin-inducing delight.” —People “Will keep young readers glued to the page…So when do I get the sequel?” —Beth McMullen, author of Mrs. Smith’s Spy School for Girls In this thrilling...

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!

The eagerly anticipated, deadly prequel to the number one bestselling Alex Rider series. In the prequel to the number one bestselling Alex Rider series by Anthony Horowitz, contract killer Yassen Gregorovich is given orders to kill Alex. But Yassen knows a secret from the past that connects him...

THIS JUST IN! Amy and Dan Cahill were spotted on a train, hot on the trail of one of 39 Clues hidden around the world. BUT WAIT! Police report a break-in at an elite hotel, and the suspects ALSO sound suspiciously like Amy and Dan. UPDATE! Amy and Dan have been seen in a car . . . no, in a speedboat chase . . . and HOLD EVERYTHING! They're being chased by an angry mob?!? When there's a Clue on the line, anything can happen.

These chapter books introduce beginning readers to the detective mystery genre. Perfect for the Common Core, kids can problem-solve with Nate, using logical thinking to solve mysteries! Rosamond has started a book club called Rosamond’ s Ready Readers. But she claims there’s an evil page...

Years ago, a man vanished from the yellow house on Surprise Island. Why? The Aldens have found a clue to the mystery!

Kayla made peanut butter treats for Jillian’s new puppy Thor. But now the treats are missing. What does Kayla know? 1. There are three treats missing. 2. King was in the kitchen. 3. King’s breath doesn’t smell like peanut butter. What does King know? There’s an intruder in the house. How...

Dear Diary... Who knew a sports field could cause so much drama? That's what Bess, George, and I are investigating. Ever since George's cousin, Carrie Kim, announced her candidacy for city council, along with her platform of building a new football field and a state-of-the-art sports complex, someone has been trying to sabotage the campaign! I think the Green Club may be behind this. I understand being concerned about the environment, but someone is taking it too far.

Dear Diary... All I wanted to do was buy a new book, read, and relax. But when Bess, George, and I visited the local bookstore in Avondale, we found it in flames, and before we knew it, we were in the middle of another mystery. Or was it the middle of one of the best-selling author Lacey O'Brien's books? I know it sounds really strange, but it seemed like mysteries in her books were coming alive: first the fire; next a sinking boat; and then a missing statue. Were these innocent coincidences or chilling crimes?

"My old friend Creepella von Cacklefur invited me to her family's spooky castle. And before I could say 'not for all the cheese in Cheddarton,' she'd mousenapped me! And holey cheese, what an adventure! I was off to Niagara Falls on a field trip with my nephew Benjamin's class. I was surrounded by mischievous young mouselets who seemed determined to send me over the Falls in a barrel!"—Geronimo Stilton

In the ninth addition to the New York Times bestselling Spy School series, Ben Ripley faces his nemesis, Murray Hill, on the high seas. Thanks to the evidence Ben uncovered in his investigation of the Croatoan, the CIA has tracked his nemesis, Murray Hill, to Central America, where they believe...