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.

Most kids have enough to deal with between school, homework, extracurricular activities, and friends, but Molly Bigelow isn't your typical tween. By day, Molly attends MIST - the Metropolitan Institute of Science and Technology - but it's what she's learning outside of school that sets her apart from her classmates. Molly is a zombie hunter, just like her mother.

Charlie Thorne is a genius. Charlie Thorne is a renegade. Charlie Thorne isn’t going down without a fight. After tracking down incredible discoveries by Einstein and Darwin, Charlie is back. This time, the great ruler Cleopatra has left behind an extremely valuable and powerful treasure, its location encoded on an ancient stone tablet.

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.

Charlie Thorne is a genius. Charlie Thorne is a thief. Charlie Thorne isn’t old enough to drive. And now, it’s up to her to save the world.... Decades ago, Albert Einstein devised an equation that could benefit all life on earth - or destroy it. Fearing what would happen if the equation fell into the wrong hands, he hid it. But now, a diabolical group known as the Furies are closing in on its location. In desperation, a team of CIA agents drags Charlie into the hunt, needing her brilliance to find it first - even though this means placing her life in grave danger.

On a family trip to Paris, Greg Rich's parents disappear. They're not just missing from the city - they're missing from the century. So, Greg does what any other 14-year-old would do: He travels through time to rescue them. Greg soon finds out that his family history is tied to the legendary Three Musketeers. But when he meets them, they're his age, and they'll only live long enough to become true heroes if he can save them.

Teddy Fitzroy, his family, and some other FunJungle employees have been invited to visit a bison ranch just outside Yellowstone National Park that FunJungle’s owner, J.J. McCracken, is considering purchasing. But as usual, trouble isn’t far behind. The ranch’s endangered bison have been mysteriously disappearing. Then a massive local grizzly bear named Sasquatch breaks into the house, causing chaos. In the aftermath, Kandace McCracken discovers that her exceptionally expensive sapphire necklace has vanished.

Like his fellow lunarnauts - otherwise known as Moonies - living on Moon Base Alpha, twelve-year-old Dashiell Gibson is famous the world over for being one of the first humans to live on the moon. And he's bored out of his mind. Kids aren't allowed on the lunar surface, meaning they're trapped inside the tiny moon base with next to nothing to occupy their time - and the only other kid Dash's age spends all his time hooked into virtual reality games.

Teddy Fitzroy's back for another zoo mystery this time it's a koala caper in this action-packed follow-up to Belly Up, which Kirkus Reviews called great fun. School troublemaker Vance Jessup thinks Teddy Fitzroy's home at Fun Jungle, a state-of-the-art zoo and theme park, is the perfect place for a cruel prank. Vance bullies Teddy into his scheme, but the plan goes terribly awry. Teddy sneaks into the koala exhibit to hide out until the chaos dies down.

Twelve-year-old Theodore “Teddy” Roosevelt Fitzroy believes that Henry, the hippopotamus at the brand-new FunJungle, has been murdered. The zoo’s top brass claim the hippo went belly up the natural way, but Teddy and his feisty friend Summer McCraken have other ideas. Could the culprit be FunJungle’s animal-hating head of operations? Or is it FunJungle’s owner - Summer’s dad - a man who is much more concerned about money than animal welfare? The deeper Teddy and Summer dig, the more danger they’re in - because when it comes to hippo homicide, the truth can’t be caged!

Ever since he made his first appearance in A Study In Scarlet, Sherlock Holmes has enthralled and delighted millions of fans throughout the world. Now Audible is proud to present Arthur Conan Doyle's Sherlock Holmes, read by Stephen Fry. A lifelong fan of Doyle's detective fiction, Fry has narrated the definitive collection of Sherlock Holmes - four novels and four collections of short stories. And, exclusively for Audible, Stephen has written and narrated eight insightful introductions, one for each title.

Eli Frieden lives in the most perfect town in the world: Serenity, New Mexico. In this idyllic place, every lawn is perfectly manicured, and everyone has a pool and a tree house. Honesty and integrity are valued above all else. The 30 kids who live there never lie--they know it's a short leap from that to the awful problems of other, less fortunate places. Then one day Eli bikes to the edge of the city limits, and something so crazy and unexpected happens, it changes everything.

As the son of the world’s most famous tech billionaire, spoiled Jett Baranov has always gotten what he wanted. So when his father’s private jet drops him in the middle of the Arkansas wilderness, at a place called the Oasis, Jett can’t believe it. He’s forced to hand over his cell phone, eat grainy veggie patties, and participate in wholesome activities with the other kids, who he has absolutely no interest in hanging out with.

A hilarious new middle grade novel from beloved and best-selling author Gordon Korman about what happens when the worst class of kids in school is paired with the worst teacher. The Unteachables never thought they’d find a teacher who had a worse attitude than they did. And Mr. Kermit never thought he would actually care about teaching again. Over the course of a school year, though, room 117 will experience mayhem, destruction - and maybe even a shot at redemption.

Twelve-year-old Percy Jackson is about to be kicked out of boarding school...again. No matter how hard he tries, he can't seem to stay out of trouble. But can he really be expected to stand by and watch while a bully picks on his scrawny best friend? Or not defend himself against his pre-algebra teacher when she turns into a monster and tries to kill him? Of course, no one believes Percy about the monster incident; he's not even sure he believes himself.

With a dad who disappeared years ago and a mother who's a bit too busy to parent, Emmy is shipped off to Wellsworth, a prestigious boarding school in England, where she's sure she won't fit in. But then she finds a box of mysterious medallions in the attic of her home - medallions that belonged to her father...who may have gone to Wellsworth.

Thirty years ago, Wilde was found as a boy living feral in the woods, with no memory of his past. Now an adult, he still doesn't know where he comes from, and another child has gone missing. No one seems to take Naomi Pine's disappearance seriously, not even her father - with one exception. Hester Crimstein, a television criminal attorney, knows through her grandson that Naomi was relentlessly bullied at school. Hester asks Wilde - with whom she shares a tragic connection - to use his unique skills to help find Naomi.

Dear Diary...Bess, George, and I are actually in Alaska! Everywhere you look, there are massive mountains and sparkling, deep-blue waters. We're on the maiden voyage of the Arctic Star luxury cruise ship, and my old friend, Becca Wright, the assistant cruise director, needs our help. She received threatening emails before even setting sail; then a bloody body turned up in the swimming pool.

Because her mom is always on the move, Steph hasn’t lived anyplace longer than six months. Her only constant is an online community called CatNet - a social media site where users upload cat pictures - a place she knows she is welcome. What Steph doesn’t know is that the admin of the site, CheshireCat, is a sentient A.I. When a threat from Steph’s past catches up to her and ChesireCat’s existence is discovered by outsiders, it’s up to Steph and her friends, both online and IRL, to save her.

Ellery Hathaway knows a thing or two about serial killers, but not through her police training. She's an officer in sleepy Woodbury, Massachusetts, where a bicycle theft still makes the newspapers. No one there knows she was once victim number 17 in the grisly story of serial killer Francis Michael Coben. The only victim who lived. When three people disappear from her town in three years, all around her birthday - the day she was kidnapped so long ago - Ellery fears someone knows her secret. Someone very dangerous.

When Poppy Perkins decides to talk back to a customer who thinks it’s okay to scream at her over donuts, Poppy knows she’s going to get fired. But what she doesn’t expect is for the customer to be a local celebrity, and for a video of their interaction to go viral—or for the customer to drop dead five minutes later, poisoned by the donut Poppy had just served him.

Mystery-book aficionado Birdie Lindberg has an overactive imagination. Raised in isolation and homeschooled by strict grandparents, she's cultivated a whimsical fantasy life in which she plays the heroic detective and every stranger is a suspect. But her solitary world expands when she takes a job the summer before college, working the graveyard shift at a historic Seattle hotel. In her new job, Birdie hopes to blossom from introverted dreamer to brave pioneer, and gregarious Daniel Aoki volunteers to be her guide.

As an employee of MacBain Securities and Solutions, Claire Kelly can certainly hold her own. Armed with an impressive set of covert skills, she’s more than prepared to tackle any job that comes her way...except one involving Cooper Lockman. Cooper and Claire used to work together before his feelings for her sent him packing to Europe for six long years. But now he’s back and determined to ignore the still-smoldering heat that lingers between them. Their current mission: go undercover together at a California high school to root out the mastermind behind a prostitution ring.

Moving back into her parents’ house with her teenage daughter had not been Georgia Thackery’s “Plan A”. But when she got a job at the local college, it seemed the sensible thing to do. So she settled in and began reconnecting with old friends. Including Sid. Sid is the Thackery family’s skeleton. He’s lived in the house as long as Georgia can remember, although no one, including Sid, knows exactly where he came from and how he came to be a skeleton.

Someone is trying to turn Portland High into a school for scandal with a gossipy website called Dirty Laundry. The latest target of ruinous rumors is newly elected PTA President Sandra Wallage. After a heated meeting with outraged parents, Sandra runs into fellow school mom and Private Investigator Maya Kendrick, who's discovered the person behind the website. But when the women storm into the venomous gossip columnist's office they find a lifeless body - along with a confession.

To say eighteen-year-old Farrah Higgins—or Digit—is good at math is a laughable understatement. She’s been cracking codes since childhood, and is finally at home with “her people” at MIT in Cambridge. Her talents are so off the charts that her laptop is under surveillance by both the CIA and an ecoterrorist named Jonas Furnis. So when she thoughtlessly hacks into the Department of Defense’s database, she lands in serious hot water inside and outside the law.

It’s wintertime at Greenglass House. The creaky smuggler’s inn is always quiet during this season, and 12-year-old Milo, the innkeepers’ adopted son, plans to spend his holidays relaxing. But on the first icy night of vacation, out of nowhere, the guest bell rings. Then rings again. And again....

Prepare for thrills and chills as three acclaimed authors unite in Twisted Fate, a spine-tingling collection of stories: Hunted by Traci Hunter Abramson; Death House by Gregg Luke; and Haunting Reminders by Stephanie Black.

In a charming cozy mystery series debut, Leslie Nagel's irrepressible small-town heroine finds that her fellow book club members may be taking their Agatha Christie a bit too literally - and murder a bit too lightly.

Farrah "Digit" Higgins may be going to MIT in the fall, but this L.A. high school genius has left her geek self behind in another school district so she can blend in with the popular crowd at Santa Monica High and actually enjoy her senior year. But when Farrah, the daughter of a UCLA math professor, unknowingly cracks a terrorist group's number sequence, her laid-back senior year gets a lot more interesting. Soon she is personally investigating the case, on the run from terrorists, and faking her own kidnapping - all while trying to convince a young, hot FBI agent to take her seriously.

Middle school is hard. Solving cases for the FBI is even harder. Doing both at the same time - well, that's just crazy. But that doesn't stop Florian Bates! Get to know the only kid on the FBI director's speed dial - and several international criminals' most wanted lists - in this adventurous series that School Library Journal says combines "elements of Alex Rider, James Bond, and Sherlock Holmes".

On his 11th birthday, Jackson is nervous about moving up to middle school where he knows he'll be bullied by older kids, so he makes his wish, "I don't want to grow up!" When his 12th birthday rolls around, he discovers his wish came true: he's still 11, and he's starting fifth grade (again). At first, this is the perfect life. Jackson is the smartest kid in his class, the best on his baseball team, and the star of the school band. But after a few years of being eleven, he realizes his life is passing him by.

Most kids have enough to deal with between school, homework, extracurricular activities, and friends, but Molly Bigelow isn't your typical tween. By day, Molly attends MIST - the Metropolitan Institute of Science and Technology - but it's what she's learning outside of school that sets her apart from her classmates. Molly is a zombie hunter, just like her mother.

In the tradition of Nancy Drew, four kids and one grandfather in Miami tackle a decades-old mystery in this first book in the action-packed and funny Sherlock Society middle grade series from New York Times bestselling, Edgar Award–winning author James Ponti!

Miri lives on a mountain where, for generations, her ancestors have quarried stone and lived a simple life. Then word comes that the king's priests have divined her small village the home of the future princess. In a year's time, the prince himself will come and choose his bride from among the girls of the village. The king's ministers set up an academy on the mountain, and every teenage girl must attend and learn how to become a princess.

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.

Maeve Merritt chafes at the rigid rules at her London boarding school for “Upright Young Ladies.” When punishment forces her to sort through the trash, she finds a sardine tin that houses a foul-tempered djinni with no intention of submitting to a schoolgirl as his master. Soon an orphan boy from the charitable home next door, a mysterious tall man in ginger whiskers, a disgruntled school worker, and a take-no-prisoners business tycoon are in hot pursuit of Maeve and her magical discovery.

A young girl delights in her grandmother's stories of days gone by. Sparked by keepsakes and simple questions, Grandma shares marvelous stories of mischief, discovery, and laughter, such as the time she accidentally lost the family buggy.

Eleven-year-old Harry Mancini is not Harry Houdini - the famous escape artist who died in 1926. But Harry does live in Houdini's old New York City home, and he definitely knows everything there is to know about Houdini's life. What is he supposed to do, then, when someone starts texting him claiming that they're Houdini, communicating from beyond the grave? Respond, of course.

"Eight Cousins, or The Aunt Hill" was published in 1875 by American novelist Louisa May Alcott. It is the story of Rose Campbell, a lonely and sickly girl who has been recently orphaned and must now reside with her maiden aunts, the matriarchs of her wealthy Boston family. When Rose's guardian, Uncle Alec, returns from abroad, he takes over her care.