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When Daisy Wells and Hazel Wong set up their very own secret detective agency at Deepdean School for Girls, they struggle to find any truly exciting mysteries to investigate. (Unless you count the case of Lavinia's missing tie. Which they don't.) Then Hazel discovers the Science Mistress, Miss Bell, lying dead in the Gym. She assumes it was a terrible accident - but when she and Daisy return five minutes later, the body has disappeared. Now Hazel and Daisy not only have a murder to solve: they have to prove one happened in the first place.

After thwarting a notorious villain at an eco-summit in Paris, the City Spies are gearing up for their next mission. Operating out of a base in Scotland, this secret team of young agents working for the British Secret Intelligence Service’s MI6 division have honed their unique skills, such as sleight of hand, breaking and entering, observation, and explosives. All of these allow them to go places in the world of espionage where adults can’t.

Meet Enola Holmes, teenaged girl turned detective and the younger sister to Sherlock Holmes. When Enola Holmes, sister to the detective Sherlock Holmes, discovers her mother has disappeared, she quickly embarks on a journey to London in search of her.

In the small city of Strattenburg, there are many lawyers, and though he’s only 13 years old, Theo Boone thinks he’s one of them. Theo knows every judge, policeman, court clerk - and a lot about the law. He dreams of being a great trial lawyer, of a life in the courtroom. But Theo finds himself in court much sooner than expected. Because he knows so much - maybe too much - he is suddenly dragged into the middle of a sensational murder trial.

Reggie Armitage the III has found a box with a list of codes and a golden skeleton key - but he has no idea what the key opens or how to crack the code. It's a good thing second-grade sleuths, Jigsaw Jones and Mila Yeh, are investigating The Case of the Golden Key.

Welcome to the bone chilling, pulse-pounding world of PIGGY, the survival-horror game that will keep you up at night. With the Infected hot on their heels and growing in number, a small band of survivors must come together and try to stop their island from being overrun. But is there really a cure for whatever is turning people into mindless monsters? Or are they too late to save anyone at all?

It’s the day before the big ballet recital, and Nancy Drew and her best friends, Bess and George, are very excited. But suddenly, the tape with the dance music on it is missing! Everyone in the class thinks Bess took it, but Nancy knows better. It’s up to her to find the culprit and the tape before it’s too late.

Ben Ripley and his friends are training in Alaska when Cyrus Hale is kidnapped by his old Russian nemesis. Ben, Erica, and the others mount a rescue mission, but events quickly spiral out of control in a plot involving the secret history of US-Russian relations, a young KGB agent with skills to rival Erica’s—and lots and lots of bears.

The number one best-selling Magic Tree House series is ready to whisk you away through time with Jack and Annie! 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 Roosevelt on the most significant camping trip in conservation history! Sunlight on the Snow Leopard: The magic tree house takes Jack and Annie to Nepal with a mission to find...a ghost! As frightening as that sounds, the mission is clear: Find the ghost, and save the world.

When his best friend Tom is abducted, Alex Rider is given an ultimatum by Nightshade—a sinister cult of assassins with a score to settle. But what twisted evil are they planning, and how is it connected to a revolutionary new gaming system? With no idea who to trust, Alex finds himself dragged into a nightmare world—where nothing is real but the game could kill you. The clock is ticking and Nightshade is closing in.

In a dangerous world, everyone needs protection. Hostage is the first installment from the Bodyguard series by Chris Bradford, best-selling author of Young Samurai. Bodyguard is a bulletproof action-adventure series that fans of Cherub and Alex Rider will love. This is Lee Child for younger readers--Jason Bourne for the next generation.

Join Nate the Great and his trusty companion, Sludge, in solving the greatest mysteries a boy could search for. In this collection, Nate hunts down a lost grocery list, a favorite stamp, a genius pet, a beach bag, a yucky valentine, second base, and an evil, book-destroying monster.

These are just some of the 10 brain-twisting mysteries that Encyclopedia Brown must solve by using his famous computerlike brain. Try to crack the cases along with him!

Ben Ripley may only be in middle school, but he's already pegged his dream job: CIA or bust. Unfortunately for him, his personality doesn't exactly scream "secret agent". In fact Ben is so awkward, he can barely get to school and back without a mishap. Because of his innate nerdiness, Ben is not surprised when he is recruited for a magnet school with a focus on science - but he's entirely shocked to discover that the school is actually a front for a junior CIA academy.

Sara Martinez is a hacker. She recently broke into the New York City foster care system to expose her foster parents as cheats and lawbreakers. However, instead of being hailed as a hero, Sara finds herself facing years in a juvenile detention facility and banned from using computers for the same stretch of time. Enter Mother, a British spy who not only gets Sara released from jail but also offers her a chance to make a home for herself within a secret MI5 agency. Operating out of a base in Scotland, the City Spies are five kids from various parts of the world.

Some sneaky soul has stolen the skeleton from the nurse’s office! The principal promises free aquarium tickets to the savvy sleuths who can track down poor Mr. Bones. It’s up to Dink, Josh, and Ruth Rose to follow the clues and put those old bones to rest.

Meet Tyrone the Tyrannosaurus, Green Lawn’s newest–and biggest!–visitor. The kids’ old friend Jud Wheat is in town raising funds for a dinosaur museum. But after the show in Green Lawn, all Jud’s money disappears! Can Dink, Josh, and Ruth Rose track down the cash?

Ben Ripley’s longtime nemesis, Murray Hill, has put a price on Ben’s head and accused him of being at the center of a conspiracy on the internet. Now Ben finds himself in his greatest danger yet, on the run from both assassins and conspiracy theorists. Ben must find Murray before his machinations catch up to Ben—but with so much at stake, even some of Ben’s most trusted friends might not be at the top of their game, leaving Ben to be tested like never before.

These audiobooks introduce young listeners to the detective mystery genre. Perfect for the Common Core, kids can problem-solve with Nate, using logical thinking to solve mysteries! A stegosaurus stamp belonging to Nate's friend Claude disappears, and the indomitable Nate the Great is called in on the case. At first, even Nate is stumped - the stamp has just vanished without a trace! But with clues from the weather and his ever-faithful dog, Sludge, Nate is soon on his way to wrapping up his stickiest case yet.

Twelve-year-old Ben Ripley is not exactly the best student spy school has ever seen - he keeps flunking Advanced Self Preservation. But outside of class, Ben is pretty great at staying alive. His enemies have kidnapped him, shot at him, locked him in a room with a ticking time bomb, and even tried to blow him up with missiles. And he's survived every time. After all that unexpected success, the CIA has decided to activate Ben for real.