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The Aldens spend the summer on their own private island. There they meet a new friend with an amazing secret!

Senta hat Hausarrest – doch draußen wartet ein neuer Fall. Ihre beste Freundin Lotti ermittelt auf eigene Faust gegen eine Gang, die Kinder mit Sammelkarten in fiese Fallen lockt. Als der Kontakt zu Lotti plötzlich abbricht, zählt für Senta nur eins: Lotti ist in Gefahr – und sie muss helfen. Jetzt.

Incorrigible and precocious David Jesse King has high hopes of winning the Faith & Fun Science Fair—until someone sabotages his chances!—in this hilarious, highly illustrated new chapter book series from bestselling author of The Summer Camp Disaster. David loves school! Especially since...

Skipper isn’t your ordinary skunk. He’s an inventor, dreamer, and fearless flyer who lives in a fortress of forgotten junk behind Luigi’s Diner. With nothing but old blenders, kite string, and broken drones, Skipper builds gadgets that defy gravity. But when he stumbles into the high-flying world of rooftop racing, he discovers something far bigger than trophies and bragging rights—someone is plotting to steal the city’s heartbeat: a legendary song that keeps its people united.

Petronella arbeitet gerade in ihrem Garten, als vor dem Müllerhaus ein Bus voller Kryptozoologen hält. Die seltsamen Forscher schlagen ihr Lager auf der Wiese hinter dem Garten auf. Im Haspelwald wollen sie auf die Jagd nach magischen Wesen gehen. Die Bewohner des Gartens sind alarmiert. Da passt es gar nicht, dass Petronella verreisen muss. Als den Forschern einige wertvolle Gegenstände gestohlen werden, die in der Mühle untergebracht waren, fällt der Verdacht ausgerechnet auf Herrn Kuchenbrand!

In ihrem zweiten Fall haben die Freunde mit dem Theatergeist, der die Theatertexte der Schüler und Schülerinnen stiehlt, Proben der Theatergruppe absagt und die Theaterproben sabotiert, zu tun. Wieder einmal stehen die Zwillinge Ulli und Olli, sowie Djamila, Tim, Minimax und Oma Berta vor einem scheinbar schwierigen Rätsel und die Freunde müssen sich beeilen – denn sonst könnte die Theateraufführung Peter Pan abgesagt werden.

A field trip to Washington, D.C. turns into a middle-grade mystery! In this Field Trip Mysteries book, sixth-grader Edward "Egg" Garrison and his friends travel to the nation’s capital. But when they arrived at Union Station, people scream and flee the popular landmark. They’ve seen a ghost, the ghost of George Washington, the first U.S. president! The four friends find themselves smackdab in another mind-bending mystery. And if they don’t act fast, the United States Capitol will soon become a haunted house.

Edward G. Garrison, better known as Egg, is pretty excited about the Science Club's field trip to the zoo. They'll get to see a rare display of Island Foxes, an endangered species. But when the club arrives, they learn that the foxes have been nabbed! Can Egg and his friends find the foxes?

Catalina "Cat" Duran and her class are off to the recycling center for what seems like the worst field trip ever. But when they arrive, they find out that the recycling plant has been sabotaged! Only Cat and her friends can save the day (and help save the Earth, too!).

Samantha Archer, also known as Sam, couldn't be more excited about her class trip to Scrub Brush, the cool frontier town. But from the second they arrive at the historic village, it's clear someone's trying to make the whole town disappear. Can Sam and her friends save Scrub Brush?

Catalina "Cat" Duran and her friends thought they were on a field trip to see the seals at the aquarium. So why has the seal show been cancelled?

Twelve-year-old Lark Heron-Finch is steeling herself to spend the summer on Swallowtail Island off the shores of Lake Erie. It’s the first time that she and her sister will have seen the old house since their mom passed away. And while her stepfather and his boys are okay, the island’s always been full of happy memories—and now everything is different. When Nadine, a close family friend, tells Lark about a tragic boat accident that happened off the coast many years before, Lark's enthralled with the story.

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".

What do you get when you add up one middle school bully, two bank robbers, 57 puppy-mill dogs, 4,000 missing dollars, and five daring troublemakers led by the incomparable Riley Mack? One crazy caper! In this merry, mischievous romp, master storyteller Chris Grabenstein, the award-winning author of Escape From Mr. Lemoncello's Library, teams with a full-cast of audio talent to introduce Riley Mack, a one-of-a-kind 12-year-old hometown hero.

These are just some of the 10 brain-twisting mysteries that Encyclopedia Brown must solve by using his famous computerlike brain. Try to crack the cases along with him!

While learning the art of ancient warfare in an exotic location, Amy and Dan uncover a devastating secret about their family that changes everything in this high-stakes adventure.

Steve is back and ready for more adventures! But this time the excitement lands closer to home. While walking home from the village, Steve is surprised to hear a loud BOOM! When he returns home, he finds his wheat farm destroyed and a huge crater where the wheat once grew. And his diamond sword is missing! Steve believes it's the act of a griefer with a lot of TNT. Devastated, Steve wants to rebuild and find his sword, but with his wheat destroyed, he must call on old friends to help him.

Introducing Miss Ottoline Brown, an exceptionally inquisitive mistress of disguise, and her partner in crime, Mr. Munroe. No puzzle is ever too tricky for the two of them to solve.... Ottoline lives in a stylish apartment in Big City with a small, hairy creature called Mr. Munroe. Together they look after the Brown family's eclectic collections - and dabble in a spot of detective work. So they are the first to the scene of the crime when a string of high-society dog-nappings and jewel thefts hits Big City.

Governments were toppled and rulers were killed during the last attempt to find the lost treasure Amy and Dan Cahill are searching for - do they even stand a chance?

Julian, Dick, Anne, George and Timmy the dog find excitement and adventure wherever they go in Enid Blyton's most popular series. In their second adventure, the Famous Five find a thief at Kirrin Cottage. They think they know who it is, but need to prove it. Will the discovery of a very old map help uncover the true culprit?