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England is in trouble! A priceless violin has been stolen, and there's only one person who can help: Mac B., kid spy. Mac's adventure takes him on a top-secret museum night watch, zip-lining in Italy with his trusty corgi sidekick, and on an undercover mission in the heart of enemy territory. But when he ends up as a captured prisoner, is the mission lost for good?

When the Crown Jewels go missing from inside a locked room, Mac's spy skills are put to the test. How did the thief break in? Where did the jewels go? And will Mac be able to solve this locked-room mystery before the thief escapes? This mystery isn't just a whodunit...it's a howdunit! The action in this adventure is nonstop as Mac travels to an ancient Irish castle to solve the mystery. There, he encounters everything from killer king cobras to bizarre ice sculptures...and even a revenge plot dating back hundreds of years! Will you be able to solve the mystery before Mac does?

The precious Crown Jewels have been stolen, and there's only one person who can help the Queen: her newest secret agent, Mac B. To help her, he must travel around the globe in search of the stolen treasure...but will he find it in time? From secret identities to Karate hijinks, this fast-paced, witty, and historically inspired chapter book will keep listeners guessing. With fascinating historical facts masterfully sprinkled throughout, the first entry in this series offers adventure, intrigue, absurdity, and humor.

Eleven-year-old math prodigy Ada Lovelace, daughter of the famous and infamous poet Lord Byron, is a genius. Isolated, awkward and socially inept - but a genius. Mary Godwin, age 14, daughter of radical philosopher William Godwin and feminist writer Mary Wollstonecraft, is a romantic. It has been arranged for Mary and Ada to be tutored by the young man who calls himself Percy B. Snagsby, a nervous fellow who may or may not be a spy.

Winner of the Book of the Year, Children's Fiction at The British Book Awards, 2021 'Like Murder on the Orient Express but better . . . a terrific read!' – Frank Cottrell Boyce, author of Millions Adventures on Trains is a major mystery series from bestselling authors M.G. Leonard and Sam...

In the sixth book in the number-one best-selling Alex Rider series by Anthony Horowitz, teenage spy Alex has a chance encounter with the son of multi-billionaire Nikolei Drevin. Soon Alex finds himself in the middle of an international crime hunt. The connection - Ark Angel, a revolutionary space hotel with catastrophic potential.

In solving the mystery of the Last Chance Hotel, Seth has discovered a bewildering new world of magic. Swept up in the new MagiCon case investigating ghostly goings-on at the remote Snakesmouth Lighthouse, he is determined to prove himself. But when eccentric owner Mina Mintencress is murdered, Seth realizes danger lurks around every corner. With the help of his cat, Nightshade, Seth must put his newfound magic to the test. Can they unmask a sinister sorcerer...before it's too late?  

September, 1939. When Jimmy is evacuated to a small village in Wales, it couldn’t be more different from London. Green, quiet and full of strangers, he instantly feels out of place. But then he finds a skull hidden in a tree, and suddenly the valley is more frightening than the war. Who can Jimmy trust? His brother is too little; his best friend has changed. Finding an ally in someone he never expects, they set out together to uncover the secrets that lie with the skull. What they discover will change Jimmy - and the village - forever.

What is the connection of "Fowl Relief" and an English golf-playing king? Does the nickname of Jimmy Douglas' great-great-grandfather have any significance? Tie these answers with the other clues and the mystery of the purple bird is solved, but not until Djuna, the brilliant young sleuth, and his pal Jimmy go through an ordeal that almost takes their lives. The boys tangle with an antique dealer and a tiger-skin diary - just to name a few of the events - in their struggle to solve the mystery.

"Katal!" The black bird repeated the two syllables again and again. "Katal! Katal!" As Gulliver Queen seeks out the meaning of the strange word, he is drawn into the world of international diplomacy - and dangerous espionage! As he follows the trail of clues, Gully acquires two friends from India who aid him in the search for a missing embassy guard.

Gulliver Queen, nephew of the famous detective, Ellery Queen, doesn't want to be a detective. But when Gully and his new friend, Fisty Jones, investigate the strange underwater noises in the Hudson River, they suddenly find themselves deep in a mystery that Gully can't resist tackling. The menacing tattooed man, the weird one-eyed figure in the abandoned building, the strange but merry Magnus Merlin, magician extraordinaire - all add up to an exciting tale of danger and suspense on and under New York's waterfront.

Mysteries have a way of finding Djuna, and this time a missing page from an old ship's log and the dead captain's haunted house start the ball rolling. Djuna has learned that Captain Beekman brought a treasure from his whaling trips. Who can have an interest in letting the boy get lost? Was Djuna close to the answer of the mystery?

In The Yellow Cat Mystery, amateur sleuth Djuna visits his friend, Tommy, in Florida. His yellow cat has a sore tooth, and they set off to see the dentist. The dentist is new to the town and doesn't seem to be able to help them. They do, however, notice two persons who came from a mysterious black-lacquered ship at sea - and a normal day suddenly becomes an unusual adventure.

Free passes to the circus seemed pretty exiting to Djuna and his friend, Tommy Williams, and things promised to be even more exiting when they met their old friends, Socker and Cannonball, at the entrance gate, but they were only the start of a hair-raising experience. The boys soon learned that the newspaper reporter and the state trooper were trying to uncover a pack of tricksters who were cheating the circus audiences.

Djuna and Ben weren't sure they believed in ghosts. The little girl who opened the door of the haunted house didn't look like a ghost, yet she vanished into thin air. They had to find out what happened to her. And they had to rescue Waterbury, the time-telling turtle who walked into the deserted house - and didn't walk out. Djuna found clues, and he added them all up to solve a case the secret service couldn't crack!

When Nick and Tesla Holt are sent to live with their eccentric Uncle Newt, they find their new neighborhood is full of secrets. What the heck is going on? To unravel the mysteries (and save their skins), Nick and Tesla must use everyday household objects to build electromagnets, rocket launchers, and other crazy contraptions.

The New York Times best-selling author of the Sisters Grimm series, Michael Buckley has also written and developed shows for Cartoon Network, Nickelodeon and Discovery Channel. Supervillain Gerdie Baker, assisted by criminal mastermind Simon, has created a device that opens portals to other worlds, which she and other cheerleaders have been pillaging. But the alternate realities are starting to get awfully close together, so it’s up to Matilda “Wheezer” Choi and the NERDS to stop the cheerleaders before the worlds collide.

Solve the mystery with the Secret Seven - everyone's favourite detective club! These timeless stories are perfect for young fans of mystery, adventure or detective series. In book eight, Peter and Jack go looking for their lost model aeroplane in an old abandoned house and find a lit fire in one...

While Freddy the pig relaxes in his best cowboy outfit and sings a song, he decides that he needs a vacation. He will ride his pony, Cy, out West. He'll see some wide-open spaces and maybe find some excitement. But before Freddy can leave, the excitement finds him first. Uncle Ben races up to the farm and asks Freddy for help. A pack of sneaky spies is trying to steal Uncle Ben's plans for building a flying saucer.

Queenie the cat has a big problem. And for once, it's not the slobbery, overly-excited creature who also lives at Blackberry Hill Inn. Sweet Lady Emsworth, the neighbor's prize cow, has disappeared, meaning no morning cream for Queenie. And when Queenie's not happy, no one is happy.... Things aren't looking great for Arthur the dog, either. His beloved humans, twins Harmony and Bro, are distressed about the strange activity in their town. Mysterious hi-tech people are suddenly very interested in nearby Catastrophe Falls....

Meet Malice Morbid Malign. She’s from Underland, land of sorcery, spooks and skulduggery. But, she and her family live in Topside, and mischief is their business. And the business of mischief is a very serious matter! The Malign family hate books, they hate bathing and they especially hate helping. But when grandad ghosts mysteriously start disappearing, including her own beloved grandad, Malice has no choice but to help. She partners up with her uncle Vexatious, to solve the case of the missing grandad-ghosts.

Mabel lives with her parents in The Mermaid Hotel, by the sea. Mabel likes to keep an eye on the comings and goings of all the guests. Then one day a particularly in-ter-est-ing old lady comes to stay. There is something very suspicious about her, with her growly voice and her heavy trunks and her beady-eyed tortoise. And why does no one know her real name? There can be only one answer, Mabel decides...this guest is a supervillain.

Books 1, 2 and 3 in the SKULDUGGERY PLEASANT series – known collectively as THE FACELESS ONES TRILOGY, Derek Landy's fantastically imaginative series about our favourite dead detective. SKULDUGGERY PLEASANT Stephanie's uncle, Gordon, is a writer of horror fiction. But when he dies and leaves...

Collins brings the Queen of Crime, Agatha Christie, to English language learners. Agatha Christie is the most widely published author of all time and in any language. Now Collins has adapted her famous detective novels for English language learners. These carefully abridged versions are shorter...

Strange things are happening. A man comes into Pages & Co looking for a book...then suddenly can’t remember it. Tilly and her family feel like the world is changing – but can’t quite put their finger on why. Meanwhile, the Underwoods are expanding their control over bookwandering – and they still have their sights set on Tilly. Leaving the safety of the bookshop, Tilly heads to America to find the legendary Archivists and save bookwandering....or at least, that’s the plan.

Tilly Pages is a bookwanderer; she can travel inside books and even talk to the characters she meets there. But Tilly’s powers are put to the test when fairy tales start leaking book magic and causing havoc. On a wintry visit to Paris, Tilly and her best friend Oskar bravely bookwander into the land of fairy tales to find that characters are getting lost, stories are all mixed up, and mysterious plot holes are opening without warning. Can Tilly work out who, or what, is behind the chaos so everyone gets their happily ever after?

A sinister Problem has occurred in London: all nature of ghosts, haunts, spirits, and specters are appearing throughout the city, and they aren't exactly friendly. Only young people have the psychic abilities required to see-and eradicate-these supernatural foes. Many different Psychic Detection...

*NOW A NETFLIX SERIES* In this spine-tingling next book of the Lockwood & Co series, the ghost-hunting gang take on terrifying new challenges. As a massive outbreak of supernatural Visitors baffles Scotland Yard and causes protests throughout London, Lockwood & Co. continue to demonstrate their...

The famous race horse Silver Blaze has disappeared, and the horse's trainer, John Straker, has been murdered. The great detective travels to Dartmoor to investigate. Can he discover who killed Straker and track down Silver Blaze...before it's too late?

El famoso detective privado de Ciudad Amable, Sabueso Orejotas, y su ayudante, el gato Floro, son los únicos capaces de descubrir quiénes son los ladrones responsables del robo en casa de la anciana osa Aurelia. La escritora Luisa Villar Liébana regresa con otro de sus famosos detectives, tan perspicaz e inteligente como la gallina Cloti, y una historia de suspense que demuestra la importancia del trabajo en equipo. Esta nueva aventura de Sabueso Orejotas hará las delicias de los más jóvenes amantes del misterio y las historias policiacas.

Sabueso Orejotas, el detective privado más famoso y respetado de Ciudad Amable, y su ayudante, el gato Floro, investigan una serie de robos en el supermercado: alguien se está llevando todos los salchichones. La escritora Luisa Villar Liébana regresa con otro de sus famosos detectives, tan perspicaz e inteligente como la gallina Cloti, y una historia de suspense donde la amistad es la gran protagonista. Esta nueva aventura de Sabueso Orejotas hará las delicias de los más jóvenes amantes del misterio y las historias policiacas.

Brought to you by Puffin. Schoolgirl detectives Daisy Wells and Hazel Wong are at Daisy's home, Fallingford, for the holidays. Daisy's glamorous mother is throwing a tea party for Daisy's birthday, and the whole family is invited, from eccentric Aunt Saskia to dashing Uncle Felix. But it soon...

Twelve-year-old Flick adores Jack and loves solving puzzles with him. But Jack is soon to flee the family nest, and Flick worries she'll lose her partner in crime. During his gap year in Peru, tragedy strikes when an earthquake devastates the region and no one knows what has happened to Jack. Flick and her family are thrown into the horrible unknown. She finds a key on a fine gold chain and a note with the initials SF in his room, and clings to the hope that SF (whoever that is) might hold the clue to finding her brother.

No mystery is too great for super-sleuth Cam Jansen and her amazing photographic memory! Mysteries follow super-sleuth Cam Jansen everywhere she goes...even to a book signing. Cam is waiting in line for a book "pawtograph" from famous TV dog Poochie when he mysteriously disappears and is...

No mystery is too great for super-sleuth Cam Jansen and her amazing photographic memory! Mysteries follow super-sleuth Cam Jansen everywhere she goes...even to the museum. Cam and her class are on a fild trip at the museum when Cam discovers that some bones are missing from a dinosaur skeleton...

A young boy must unravel a curse to save his family’s beloved Maine motel in this spooky, “tightly paced” (Publishers Weekly) middle grade novel sure to delight fans of Whispering Pines and The Peculiar Incident on Shady Street! Twelve-year-old Parker has grown up in his family’s Home...

Runt Higgins needs answers, fast. Someone cursed him to die on his 16th birthday—but no one seems to know who cursed him or why. He decides he must find the Great Library, where all true knowledge is stored. Unfortunately, the only people who know the location of the Great Library are a covert network of librarian-spies who have sworn to protect the Library’s secrets. And when one of Runt’s professors is attacked, it soon becomes clear that others are also out to find the Library at any cost. Meanwhile, Runt’s not the only one whose days are numbered.

The unimaginable happened. Calvin Pignes, the new Detective of Crimson City had to arrest one of his closest friends for allegedly conspiring with the Triad Bastion. Evidence found in the bastion’s ruins points to Calvin’s friend but his friend denies the allegation and says there must be some kind of a mistake. It is up to Calvin to solve this new mystery. How can he prove his friend’s innocence? Or will his investigation prove that what he thought to be his ally is not really innocent after all?

Katie’s dad has a special ring that shines like a rainbow. But he loses it while he, Katie, and Pedro are enjoying a beautiful day outside. Pedro and Katie work together to search for the ring. They try collecting clues and observing their surroundings. Will their detective work lead them to the rainbow ring?

Each story in the Zoey and Sassafras series features a new magical animal with a problem that must be solved using science. There isn’t a set formula for each book; Zoey sometimes needs to run experiments, while other times she needs to investigate a mystery, and yet other times she needs to do research. Zoey models how to keep a science journal through her handwritten entries in each story. Each story is complete with a glossary of the kid-friendly definitions for scientific terms used.