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Spread some Christmas cheer with Nate the Great in this holiday adventure! Young listeners are introduced to the detective mystery genre, perfect for the Common Core. Kids can problem-solve with Nate, using logical thinking to solve mysteries! Annie's dog is unhappy. When Fang is unhappy, everyone is unhappy. Especially Nate the Great. So Nate agrees to sniff out Fang's mysteriously missing Christmas mail. It's cold and snowy. But Nate the Great and his dog, Sludge, will try to solve this holiday case in time for Fang to have a crunchy, munchy Christmas.

Join the world's greatest detective, Nate the Great, as he solves three mysteries! Perfect for young listeners, this long-running chapter book series encourages children to problem-solve with Nate, using logical thinking to solve cases. Nate the Great, Where Are You?: Can a detective get a day off? Nate the Great and his dog, Sludge, want to take a break from solving cases. So, they hide out in the woods. But soon, they hear familiar voices shouting, "Nate the Great, where are you?" There are many mysteries to solve!

School may be out for summer, but top-secret training continues for aspiring spy Ben Ripley - and so does the danger. Ben Ripley is a middle schooler whose school is not exactly average - he's spent the last year training to be a top-level spy and dodging all sorts of associated danger. So now that summer's finally here, Ben's ready to have some fun and relax. Except that's not going to happen, because a spy-in-training's work is never done.

Nate the Great loves his mother’s Monster Cookies. But now her Monster Cookie recipe is missing! Nate and his dog, Sludge, get to work. They find lots of clues. But which ones count? Will Nate ever eat those wonderful cookies again?

It's two o'clock in the morning when the telephone rings and Nate the Great learns that Rosamond's pillowcase is missing. She needs it now because her cat, Big Hex, likes to sleep on it. Outside it is damp, dark, and dreary, but a good (yawning) sleuth knows that the hunt must go on. Can Nate the Great find the missing piece of laundry before the sun comes up, and before his bedroom slippers wear out?

All aboard the Owl Express! Nate, the great detective, and his dog Sludge, hit the rails on their latest case. Their mission: To guard an owl named Hoot. Hoot belongs to Nate’s cousin, Olivia Sharp, and she thinks someone on the train might be out to get her feathered friend. But whooo? Sludge keeps an eye on the owl’s cage while Nate snoops for clues. Then Hoot disappears! With many suspects to question, and many places to look, Nate knows one thing for sure - being the bodyguard to a little bird is a lot more work than he ever imagined!

The sun is shining, the birds are singing, and someone is eating the flowers in Nate the Great's garden. A green tortoise is slowly, slowly stepping across the lawn, and Nate is slowly, slowly following him. Where does Nate's green guest truly belong? It may take all of Nate the Great's patience and sharp eyesight to find out slowly.

Nate the Great and his trusty dog, Sludge, have a tricky case to solve. Nate's friend Rosamond has started a fortune-telling business, but her money box is missing. Sludge and Nate visit Claude, who helped Rosamond set up her business, and Finley, who collects boxes for his rat. They can't seem to help! It looks like the only way to clean up this case is to get down and dirty in the dumps!

Rosamond has started a book club called Rosamond’s Ready Readers. But she claims there’s an evil page monster on the loose. This monster has ripped and ruined a page of the cookbook Rosamond uses to make treats for the club.

Swallowtail Island is hosting the Swallowtales Writer’s Conference. Lark’s ecstatic to be chosen as a “page” for her favorite author, Ann E. Keyhart. But they say you should never meet your idols. When Keyhart arrives with her personal assistant in tow, she is nothing but a terror. And within a few hours, the assistant is dead! But the explanation isn’t sitting well. Not when lots of people had reasons to want to be rid of Keyhart, and especially not after it’s revealed the assistant recently completed a hot new novel and the file’s vanished from her computer.

Alton Barnes loves maps. He's loved them ever since he was little, and not just for the geography. Because maps contain more information than just locations, and that's why he likes to draw maps as well as read them. Regular "point A to point B" ones, sure, but also maps that explain a whole lot more - like what he really thinks about his friends. And teachers. Even the principal. So when Alton's maps are stolen from his locker, there's serious trouble on the horizon - and he'll need some mad cartographic skills to escape it.

Meet Olivia Sharp. She's bold. She's eager to help people. She's a special kind of detective. She's an agent for secrets. Duncan is Olivia's first case. He believes that the world is coming to an end. And he wants her help. So Olivia puts on her feather boa. Her driver brings the limo. Soon enough, Olivia knows just what to do. But how will 50 pizzas make Duncan happy?

In the exciting follow-up to The Nebula Secret in the seven-book Explorer Academy series, Cruz, Sailor, and Emmett, along with their new ally Bryndis, embark on their first globe-trotting mission aboard the ship Orion. Cruz jumps right back into school and starts using the latest technology in submersible underwater dives, but is soon reminded of the dangers of exploration when his equipment fails and he almost drowns. Determined to keep his eyes on the prize, Cruz sneaks away to try to find answers, but unknowingly lures his friends into bigger trouble.

A major discovery forces the Explorer Academy into the limelight in The Star Dunes, but Cruz has much more on his mind than 15 minutes of fame. A new face on board the ship brings Cruz's worlds colliding, just as a major close call tears them apart. En route to Africa, Team Cousteau is now down a major player, and Cruz can't help but be preoccupied by the hole in his life.

Cruz Coronado leaves his tranquil home in Hawaii to join 23 talented kids from around the globe to train at the Explorer Academy with the world's leading scientists to become the next generation of great explorers. But for Cruz, there's more at stake. No sooner has he arrived at the Academy than he discovers that his family has a mysterious past with the organization that could jeopardize his future. In the midst of codebreaking and cool classes, new friends, and augmented reality expeditions, Cruz must tackle the biggest question of all: Who is out to get him, and why?

When seventh grader Georges (the S is silent) moves into a Brooklyn apartment building, he meets Safer, a 12-year-old coffee-drinking loner and self-appointed spy. Georges becomes Safer's first spy recruit. His assignment? Tracking the mysterious Mr. X, who lives in the apartment upstairs. But as Safer becomes more demanding, Georges starts to wonder: how far is too far to go for your only friend? Liar & Spy is an inspired, often-funny story about destiny, goofy brilliance, and courage.

When Morrigan is invited into Nevermoor’s wealthy Silver District, she discovers a world of extravagance and a family mystery she’s eager to unravel. She could never imagine where it will lead: a white wedding, a golden dragon and a red pool of blood. Embroiled in suspicion and danger, Morrigan leaps head first into a murder investigation, while also grappling with her ever-growing Wundersmith powers. And although her friends are there to help, she fears that could change if they learn she’s keeping a terrible secret of her own.

Harriet, Jack, and Toby are treasure hunters, searching the Minecraft world for its most valuable hidden secrets. In an abandoned mineshaft, they discovered the first of three lost journals that once belonged to William, a legendary explorer who has gone missing. The journals have taken them on a daring adventure to a secret temple deep within a desert biome, then into the perilous depths of the Nether. Now the treasure hunters are facing their greatest challenge yet.

In an abandoned mineshaft, they discovered a lost journal that once belonged to William, a legendary explorer who has gone missing. The first journal took them on a daring adventure to a secret temple deep in the desert. Now they have the second journal, and they're more determined than ever to find the missing explorer.

Mabel lives with her parents in the Mermaid Hotel, where she keeps an eye on all the guests, particularly her friend, the endlessly fascinating Madame Badobedah. Madame Badobedah, who considers herself part of a long tradition of daring women such as Amelia Earhart and Zora Neale Hurston, has pirouetted through pyramids, swum with mermaids and helped a triceratops with a toothache. Just opening one of the drawers in her dressing table full of mementos elicits tales of banshees and curses and an exciting new quest – a reverse jewel heist!