Tim finds himself chasing the most dangerous criminals in Brazil - the Pelotti brothers. He stumbles across their hideout in Rio de Janeiro and pursues them in to the jungle. Tim just has his brains - and a little help from a dog called Grk.

New York might be the Big Apple, but for Tim it's sausage city. A priceless golden statue has been stolen & Tim has a vital clue.He follows the trail of hot dogs in a chase from Central Park to Brooklyn - helped by the hottest dog of all, Grk.

When Tim discovers a man badly hurt on a beach, his sun-kissed relaxing holiday in the Seychelles takes on a more dangerous twist. He and Grk are the only ones, it seems, who want to know what happened. They find themselves speeding towards a well-guarded private island, and single-handedly foiling a dastardly plot threatening the local endangered giant tortoises.

Once there was magic, and the magic lived in the dark forests. Until the warriors came... This is the story of a young boy wizard and a young girl warrior who have been taught since birth to hate each other like poison and the thrilling tale of what happens when their two worlds collide. Xar is a wizard boy who has no magic and will do anything to get it. Wish is a warrior girl, but she owns a banned magical object, and she will do anything to conceal it.

Stanley Yelnats' family has a history of bad luck, so when a miscarriage of justice sends him to Camp Green Lake Juvenile Detention Centre (which isn't green and doesn't have a lake), he is not surprised. Every day he and the other inmates are told to dig a hole, five feet wide by five feet deep, reporting anything they find. The evil warden claims that it is character building, but this is a lie, and Stanley must dig up the truth.

Read by David Walliams, with Nitin Ganatra as Raj - listen to David perform these 10 cautionary tales introducing a delightfully dreadful cast of characters. Are you ready to listen to the World’s Worst Children? Five beastly boys and five gruesome girls!

In the first book in the number-one best-selling Alex Rider series by Anthony Horowitz, 14-year-old Alex is forcibly recruited into MI6. Armed with secret gadgets, he is sent to investigate Herod Sayle, a man who is offering state-of-the-art Stormbreaker computers to every school in the country. But the teenage spy soon finds himself in mortal danger.

Greg Heffley finds himself thrust into a new year and a new school where undersize weaklings share the corridors with kids who are taller, meaner and already shaving. Desperate to prove his new found maturity, which only going up a grade can bring, Greg is happy to have his not-quite-so-cool sidekick, Rowley, along for the ride. But when Rowley's star starts to rise, Greg tries to use his best friend's popularity to his own advantage. Recorded in his diary with comic pictures and his very own words, this test of Greg and Rowley's friendship unfolds with hilarious results.

A truly original debut novel from an extraordinarily talented new voice in children's books. Laugh, cry and wonder at this race-against-time story of a boy who travels back to 1984 to prevent a go-kart accident and save his father's life.... My dad died twice. Once when he was 39 and again four years later, when he was 12. The first time had nothing to do with me. The second time definitely did, but I would never even have been there if it hadn't been for his 'time machine'....

Welcome to the Isle of Mulch! This little island is home to a large number of horrible grown-ups. The school, the local park, the toy shop and even the island's ice-cream van, are all run by awful adults who like nothing more than making children miserable. And the island is owned by the most awful one of all: Aunt Greta Greed! Something needs to be done about them. But who could be brave enough? Meet Ned: an extraordinary boy with a special power. SLIMEPOWER!

Daisy and Hazel invite you to discover their untold stories.... Daisy Wells and Hazel Wong are famous for solving murder mysteries. But there are many other intrigues in the pages of Hazel's casebook, from the macabre Case of the Deepdean Vampire, to the baffling Case of the Blue Violet, and their very first whodunit: the Case of Lavinia's Missing Tie.

David escapes from the concentration camp where he has spent his entire life and flees across Europe. He is utterly alone – who can he trust? What will await him? And all the while, how can he be sure that they won’t catch up with him...David learns that his polite manner, his haunted eyes and his thin features are strange to other people. He must learn to fend for himself in this strange new world. This is The Boy in the Striped Pyjamas meets Jonathan Safran Foer for children.

Andy and Terry live in the WORLD'S BEST treehouse! It's got a giant catapult, a secret underground laboratory, a tank of man-eating sharks and a marshmallow machine that follows you around and shoots marshmallows into your mouth whenever you're hungry! Just watch out for the sea monkeys, and the monkeys pretending to be sea monkeys, and the giant mutant mermaid sea monster.... Oh, and whatever you do, don't get trapped in a burp-gas-filled bubble!

Will is small for his age, but agile and energetic. All his life, he has dreamed of becoming a great knight like the father he never knew, so he is devastated when he is rejected as an apprentice to Castle Redmont's Battleschool. Instead he is apprenticed to Halt, the mysterious Ranger whose uncanny ability to move unseen is thought to be the result of black magic. Reluctantly, Will learns to use a Ranger's secret weapons: a bow and arrow, a mottled cloak and a stubborn little pony. It may not be what he longs for, but when he and Halt are sent out to prevention the assassination of the King....

When Joe tells a local news reporter exactly what he would do if he were leader of the country, the video goes viral, and Joe's speech becomes famous all over the world! Before long people are calling for the current leader to resign and give someone else a go...and that's how an ordinary boy like Joe ends up with the most extraordinary job. Now the fun can really start!