Nature Mysteries

The InvestiGators Audio Collection: Books 1 & 2 includes InvestiGators and InvestiGators: Take the Plunge.

King, Kayla, and Grandma find a dog who has lost his human family. What does Kayla know? This dog doesn't have a collar or any tags. He can sit, lie down, and shake hands. No one around here knows who he is. What does King know? The dog's family is staying at a campground. Can they figure out who he is and where his family is?

Join the legion of fans who have made Erin Hunter’s Warriors series a bestselling phenomenon. More thrilling adventures, epic action, and fierce warrior cats await in Warriors #5: A Dangerous Path.

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?

Chaque année, des personnes disparaissent dans les parcs nationaux et forêts américaines, dans des circonstances très étranges. Un guide touristique qui s'évapore derrière le groupe qu'il accompagne... Un bambin qui disparaît des heures en forêt, et qui fait un étrange récit à son retour... Un photographe qu'on retrouve "fondu sur place" dans un endroit inaccessible à cause de la neige... Le participant d'une course en montagne qui ne franchit jamais la ligne d'arrivée.

Princess Ellie is pony-mad! And she hates boring royal rules. She can't wait to go camping with her best friend Kate and her ponies, Moonbeam and Rainbow. There'll be no servants, no governess and - best of all -no rules! But when she hears strange noises in the night, Ellie starts to get scared. Will she solve the moonlight mystery?

Returning from a riding trip through New England, Freddy the pig, Jinx the cat, and Samuel Jackson the mole are surprised at the cool reception they get from the people of Centerboro. It seems that some animals have been raiding gardens, stealing bicycles, and breaking into houses. And they'e led by a pig that matches Freddy's description!

Meet the Chicken Squad: four fuzzy little chicks who should fill their days pecking chicken feed and chasing bugs, but instead spend most of their time looking for trouble, and finding it.

Continent le plus vaste et peuplé de notre planète, l'Asie est fascinante à bien des égards pour les Occidentaux. La richesse de ses paysages, peuples et cultures en fait un monde à part, souvent méconnu. Il n'est donc pas surprenant que la sphère asiatique soit le théâtre de disparitions parmi les plus étranges qui soient.

When my old friend Professor von Volt called to ask for help, I agreed immediately, even though it meant trekking halfway around the world to Mouse Everest! The trip was long and dangerous. I almost froze my tail off along the way. And then I was kidnapped by a yeti! Yes, it was truly an amazing adventure.

Meet Atticus Grammatticus Cattypus Claw, the world’s greatest cat burglar. He’s a tabby who spells trouble. And he’s been hired by the fiendish Jimmy Magpie to steal all the jewels in Littleton-on-Sea. Atticus needs a temporary home – preferably one with lots of sardines provided. But when he adopts Inspector Cheddar and his family, Atticus starts to wonder, is a life of crime really for him?

Who is Geronimo Stilton? That's me! I run a newspaper, but my true passion is writing adventure stories. Here in New Mouse City, the capital of Mouse Island, my books are all best sellers! My stories are funny, fa-mouse-ly funny. They are whisker-licking-good tales, and that's a promise.

Jay Gardiner has given himself a fool’s errand—to find the remains of his deceased father in the Pacific Ocean off the coast of Monastery Beach. He knows it’s a long shot, but Jay feels it’s the only way for him to lift the weight of guilt he has carried since his dad’s death by suicide the previous year.

When Mia moves to Vermont the summer after seventh grade, she's recovering from the broken arm she got falling off a balance beam. And packed away in the moving boxes under her clothes and gymnastics trophies is a secret she'd rather forget. Mia's change in scenery brings day camp, new friends, and time with her beloved grandmother. But Gram is convinced someone is trying to destroy her cricket farm. Is it sabotage or is Gram's thinking impaired from the stroke she suffered months ago?

A series of robberies has disrupted the peaceful life at the Bean Farm. First, food disappears from The First Animal Bank. Then sheets and shirts vanish from a clothesline. By the time oats are stolen from the barn, everyone is suspicious and upset. Soon, the animals even suspect Freddy! Who, or what, is responsible for the crimes? What is the mysterious white shape in the Great Woods?

When Naomi gets a tip about a strange snake sighting in the neighborhood, she knows it’s a job for her snake-saving club. Naomi, Nolan, and Emma go to investigate and get a huge surprise. The snake isn’t a native Texas species—it’s a ball python! Did someone dump an unwanted pet, or did this snake somehow get lost?

Learn how fossils teach us about dinosaurs.

With their Very Exciting Spy Technology and their tried-and-true, toilet-based travel techniques, the InvestiGators are undercover and on the case! And on their first mission together, they have not one but two mysteries to solve! Can Mango and Brash uncover the clues, crack their cases, and corral the crooks—or will the criminals wriggle out of their grasp?

My troublemaker cousin was trapped in Transratania! And before I could even squeak, my sister, Thea, dragged me along on her rescue mission. Little did we know that Transratania is the land of vampire bats! Holey cheese, bats give me goose bumps!

When a mysterious little free library (guarded by a large orange cat) appears overnight in the small town of Martinville, eleven-year-old Evan plucks two weathered books from its shelves, never suspecting that his life is about to change. Evan and his best friend Rafe quickly discover a link between one of the old books and a long-ago event that none of the grown-ups want to talk about. The two boys start asking questions whose answers will transform not only their own futures, but the town itself.