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.

When Stella and her younger brother, Tom, move to their new London home, they become mystified by the disappearances of Harry, their elderly neighbor's small dog. Where does he go? And why does he keep reappearing wet-through? Their quest to solve the riddle over the summer holidays leads to a boat buried under a grassy mound, and a tunnel that takes them to a secret lake.

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.

Noah, his sister Megan, and their best friends, Richie and Ella, live next door to the zoo. Megan is the first to notice the puzzling behavior of some of the animals. One day Megan disappears, and her brother and their friends realize it’s up to them to find her. Their only choice is to follow a series of clues and sneak into the zoo. But once inside, will they discover there’s much more to the Clarksville City Zoo than they could ever have guessed?

Jake and Taylor Wilder have been taking care of themselves for a long time. Their father abandoned the family years ago, and their mother is too busy working and running interference between the boys and her boyfriend, Bull, to spend a lot of time with them. Thirteen-year-old Jake spends most of his time reading. He pores over his father's journal, which is full of wilderness facts and survival tips. Eleven-year-old Taylor likes to be outside playing with their dog, Cody, or joking around with the other kids in the neighborhood. But one night everything changes.

As the youngest in her family, Dory really wants attention; and more than anything, she wants her brother and sister to play with her. But she's too much of a baby for them, so she's left to her own devices - including her wild imagination and untiring energy. Her siblings may roll their eyes at her childish games, but Dory has lots of things to do: outsmarting the monsters all over the house, escaping from prison (aka time-out), and exacting revenge on her sister's favorite doll.

Sam Gribley is terribly unhappy living in New York City with his family, so he runs away to the Catskill Mountains to live in the woods - all by himself. With only a penknife, a ball of cord, 40 dollars, and some flint and steel, he intends to survive on his own. Sam learns about courage, danger, and independence during his year in the wilderness, a year that changes his life forever.

"Are you a gifted child looking for special opportunities?" Dozens of children respond to this peculiar ad in the newspaper and are then put through a series of mind-bending tests, which readers take along with them. Only four children—two boys and two girls—succeed. Their challenge: to go on a secret mission that only the most intelligent and inventive children could complete. To accomplish it they will have to go undercover at the Learning Institute for the Very Enlightened, where the only rule is that there are no rules.

A magical adventure of animals traveling worldwide to Noah's ark. Max, a Scottish terrier, takes his usual morning trot down to the loch where he hears a mysterious Voice humming in the reeds saying, "Come to me...follow the fire cloud." He embarks on an unknown journey from Scotland, meeting other animals along the way including Liz, a brilliant, petite black cat from France. Max and Liz become the brave leaders for their group, and eventually, for the entire ark. The mysterious journey, filled with danger, humor, trials, and triumphs, leads them across Europe to the Middle East.

Their instincts and intelligence were valuable assets for teenage brothers, Joe and Frank Hardy, as they followed in the footsteps of their well-known father, Fenton Hardy, a former police detective. They had wits and courage that gave them what it took to solve cases in their fictional home of Bayport in the upper east coast area of the US. They never lost their nerve despite being frequently confronted by danger. In this instance there is a robbery at the Tower Mansion and a friend of the Hardy Boys’ father is falsely accused. Young Joe and Frank take on the case.

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".

Henry, Jessie, Violet, and Benny didn't think the old trunk in their house held anything interesting. But an unusual statue they find inside leads them to the Reddimus Society, a secret guild dedicated to returning lost treasures to where they belong. Now the Aldens must help their new friends by traveling across the country with the statue and six mysterious boxes! Can the Boxcar Children keep these seven treasures out of the wrong hands?

When an oil spill takes place off the coast of Connecticut, the Aldens are happy to volunteer to help clean up the animals affected, including a rare species of shore bird. But could more have been done to prevent the spill? As the Aldens take up the case, it leads them on an adventure to help other endangered animals around the world.

The Great Smoky Mountains National Park is the most visited national park in the country, with 12.1 million recreational visits in 2020. Aside from crowds of hikers, campers, and general tourists, there's a dark side to the Smokies, the town of Gatlinburg and the surrounding foothills. From strange disappearances, grisly murders and bone-chilling paranormal hauntings to ghost sightings, this pristine paradise has a lot more to offer than just serene hiking trails or camping. So put aside your nature guidebooks, and prepare for a wild ride on the dark side of the Great Smoky Mountains.

Zero is just one of 20,000 people aboard a spaceship bound for a new planet set to be colonized. The journey is over a century long but luckily, everyone is in stasis, so they’ll be safe and sound asleep during the trip. Everyone that is, except for Zero, whose pod has malfunctioned, waking him up a hundred years early. His initial excitement in roaming the ship alone quickly turns to a heart-stopping interstellar adventure when a family of space pirates show up, trying to hijack the ship and take the colonizers hostage.

Twelve-year-old Isaiah Rawlings wished for only one thing this summer, a camping trip outside of Kentucky. I’m so tired of camping in my backyard, he groaned. Isaiah pleads with his parents to reconsider their usual summer trip to dusty old museums and big cities.

Twelve-year-old cousins Sophie and Jessica don't have much in common. Sophie loves hiking and her small town. Jessica would rather be shopping in a city. The only mystery is how they'll be able to spend the summer together. Then . . . they find a briefcase in the forest with a surprise inside. When they hear footsteps behind them and bad guys run after them, they have no choice but to work together to solve the mystery of The Feather Chase.

When Stella and her younger brother, Tom, move to their new London home, they become mystified by the disappearances of Harry, their elderly neighbor's small dog. Where does he go? And why does he keep reappearing wet-through? Their quest to solve the riddle over the summer holidays leads to a boat buried under a grassy mound, and a tunnel that takes them to a secret lake.

Noah, his sister Megan, and their best friends, Richie and Ella, live next door to the zoo. Megan is the first to notice the puzzling behavior of some of the animals. One day Megan disappears, and her brother and their friends realize it’s up to them to find her. Their only choice is to follow a series of clues and sneak into the zoo. But once inside, will they discover there’s much more to the Clarksville City Zoo than they could ever have guessed?

Jake and Taylor Wilder have been taking care of themselves for a long time. Their father abandoned the family years ago, and their mother is too busy working and running interference between the boys and her boyfriend, Bull, to spend a lot of time with them. Thirteen-year-old Jake spends most of his time reading. He pores over his father's journal, which is full of wilderness facts and survival tips. Eleven-year-old Taylor likes to be outside playing with their dog, Cody, or joking around with the other kids in the neighborhood. But one night everything changes.

Discover what James Patterson calls “the coolest library in the world” in the New York Times bestselling, award-winning Mr. Lemoncello’s Library series!

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.

Join The Campground Kids on their most festive adventure yet—Christmas Chaos! In this special edition of the beloved series, the adventurous gang takes a break from exploring national parks to immerse themselves in the magic of Washington D.C. It's the most wonderful time of the year, and Isaiah, Sadie, and Ethan are ready for a holiday filled with laughter, friendship, and a touch of Christmas chaos!

Something is not right in Bayport. After a series of unfortunate (yet harmless) pranks, it looks like Frank and Joe have caught their suspect surprisingly early. Their classmate, Seth Diller, has taken his love of filmmaking a bit too far. But shortly after Frank and Joe confront Seth, there are fresh outbreaks of Seth-like pranks. Except these aren't as harmless. After a bit of investigating, the Hardy Boys uncover evidence of the Red Arrow - a group that will stop at nothing to bring chaos and crime to Bayport's peaceful existence.

Siblings Alex and Zoe Sherlock take their last name as inspiration when choosing a summer job. After all, starting a detective agency has to be better than babysitting (boring), lawn mowing (sweaty), or cleaning out the attic (boring and sweaty). Their friends Lina, an avid bookworm, and Yadi, an aspiring cinematographer, join the enterprise, and Alex and Zoe’s retired reporter grandfather offers up his sweet aquamarine Cadillac convertible and storage unit full of cold cases. The group’s first target is the long-lost treasure supposedly hidden near their hometown Miami.

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.

"Are you a gifted child looking for special opportunities?" Dozens of children respond to this peculiar ad in the newspaper and are then put through a series of mind-bending tests, which readers take along with them. Only four children—two boys and two girls—succeed. Their challenge: to go on a secret mission that only the most intelligent and inventive children could complete. To accomplish it they will have to go undercover at the Learning Institute for the Very Enlightened, where the only rule is that there are no rules.

Join world-famous detective Sherlock Holmes and his ever-loyal sidekick Dr. Watson as they embark on a series of daring adventures. Priceless jewels disappear from a hotel suite, a monstrous hound is spotted on the moors and a woman is murdered in a locked room. Can our brilliant hero solve these mysteries and more before disaster strikes? This thrilling collection brings 16 adventures of Sir Arthur Conan Doyle's most famous detective to life, adapted by award-winning children's fiction author Alex Woolf.

The Boxcar Children: Henry, Jessie, Violet, and Benny are orphans. Can they find a home where they can stay together as a family? Surprise Island: The Aldens spend the summer on their own private island. There they meet a new friend with an amazing secret! The Yellow House Mystery: Years ago, a man vanished from the yellow house on Surprise Island. Why? The Aldens have found a clue to the mystery!

“Loved the book. Can't wait for the sequel!!” A tropical island, lost treasure, and a mysterious foe. Book 14 in the award-winning, page-turning Wright Cousin Adventures series. “Hang on for your life!” exclaimed Lindy. The teenage Wright Cousins are visiting the beautifully lush tropical South Pacific Island of Talofa. There’s so much to see and do…boogie boarding, scuba diving, exploring, boating, surfing, and a treasure hunt! But danger also lurks in the deep blue ocean waters. The Wright Cousins suddenly find themselves up against fierce storms, eerie lighthouses, baited ...