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Mr. Edison has just invented a long-burning light bulb, but he's keeping a huge secret: he's also discovered time travel. In fact, he built his own time machine. The kids get an even bigger surprise when a young Mr. Crowe walks into Edison's laboratory - as his assistant! The older and dangerous Mr. Crowe is sneaking around Menlo Park, too, with plans to destroy the time machine. If he does, George and Gracie will be stuck in 1879...forever. The twins need Mr. Edison's help. But can they stop Crowe in time?

In this next adventure, George and Gracie travel back in time to Hershey, Pennsylvania, in 1907. Their mission: To return an antique rug and rescue their parents. When the time machine lands them smack-dab in the middle of a barn, George turns into…something pretty weird. And Gracie drives a car into a fence. They meet Milton Hershey, the chocolate king, who invites them to be his chocolate tasters. But when George and Gracie discover a plot to steal Mr. Hershey's perfect - and secret - chocolate recipe, they put themselves in danger to stop the thieves.

George and Gracie begin their adventure in Dover, Delaware 1776. The kids are surprised to discover that one of them changes into an animal every time they travel, and this time Gracie is a horse. All the twins want to do is return a pair of antique school desks and search for their parents. But instead they find themselves in the middle of the American Revolution and end up helping Caesar Rodney make his famous ride into Philadelphia to vote “yes” for the Declaration of Independence. Crowe lands in Delaware, too, and he plans to take the time machine - with George and Gracie inside!

Liam O'Connor should have died at sea in 1912. Maddy Carter should have died on a plane in 2010. Sal Vikram should have died in a fire in 2026. But all three have been given a second chance - to work for an agency that no one knows exists. Its purpose: to prevent time travel destroying history...

Becky is a typical 13-year-old girl. She likes Facebook, animals, and plenty of sleep. So when she and her brother Joe are invited to stay with their "loony" Uncle Percy at his stately home, the mysterious Bowen Hall, she thinks it"ll be the worst summer ever. What she doesn't realize is that Bowen Hall is also home to a baby Triceratops, two Sabre-tooth tigers and the mythic hero, Will Scarlet....

Joe Stoshack lives for baseball. He knows everything there is to know about the game—except how to play well. His specialty is striking out. Stosh feels like a real loser, and when he takes a low-paying job cleaning a bunch of junk out of his neighbor's attic, he feels even worse—until he comes across a little piece of cardboard that takes his breath away. His heart is racing. His brain is racing. He can hardly believe his eyes. Stosh has stumbled upon a T-206 Honus Wagner—the most valuable baseball card in the world!

Tom Edison (no, not that Tom Edison) is a hopeful janitor who dreams of becoming a scientist - and Dr Morice is a shy scientist who dreams of making friends. When an accident at the lab sends them back in time to the stone age, Tom and Dr Morice must work together to face down cavemen, saber-tooth tigers and other BC hazards, with only one problem: Tom isn't very good at science and Dr Morice isn't very good with people.

Critically acclaimed author Margaret Peterson Haddix continues her best-selling Missing series with Sent. Just as best friends Chip and Jonah discover they're actually children kidnapped from history, they get sent back to their proper time period. Now in the 15th century, Jonah realizes he's Edward V, the king of England, and Chip is his younger brother Richard, the Duke of York. Both boys know they need to find a way home fast, because they know their history - Edward and Richard were murdered.

WARNING: DO NOT BELIEVE THE STORY YOU'RE ABOUT TO HEAR. Well, you can believe some of it. There is some real history. But also hijinks. Time travel. And famous figures setting off on adventures that definitely never happened--till now. Time is getting twisted, and it's up to two kids to...

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Jack and Annie are headed to a land of fierce samurai and great beauty, the capital city of Edo (now the city of Tokyo), in ancient Japan in the 1600s. They bring only...

This new fantasy-adventure series from N. D. Wilson, bestselling author of 100 Cupboards, pits a misfit twelve-year-old against a maniacal villain with a deadly vendetta. This one-of-a kind story is must read for fans of Brandon Mull and Soman Chainani, and the start of a thrilling tale from a...

Jim et Léa sont deux jeunes enfants sélectionnés par le Bureau des Affaires Spatio-Temporelles (Le BAST) pour leurs capacités exceptionnelles. Devenus agents très spéciaux, leur mission est simple : combattre tous les méchants ! Ils peuvent intervenir à toutes les époques grâce à une machine à voyager dans le temps révolutionnaire. Les deux enfants ont grandi ensemble et sont comme frère et sœur. Tout les oppose, mais ils forment un duo de choc.

Listen to this tale of a crying child, an old ash tree, and only a witch with the ability to cure. This is a Bertram Bile time travel adventure set at Thames Head, the source of the River Thames, in Gloucestershire, England, and is based on a true story.

Time is running out for Charlie Bone . . . Charlies hopes that the new term at Bloor's Academy will hold no nasty surprises. But then Henry Yewbeam appears, twisted through time from the icy winter of 1916. With the scheming Yewbeam aunts on the prowl, and the Bloors out to catch him, Henry will...

Peter, Mary, and Hank journey to the pyramid-studded desert of ancient Egypt. When the trio become friends with Pharaoh's daughter, they witness first-hand as Moses petitions Pharaoh for the Israelites' freedom. Plagues wreak havoc as the group races to decode the scroll, gets chased by a panther, and battles Pharaoh's cunning advisor, the Great Magician.

A touch of computer keys, a blast of heat, and suddenly the Murry twins, Sandy and Dennys, are gasping in a shimmering desert land. If only the brothers had normal parents, not a scientist mother and a father who experiments with space and time travel. If only the Murry twins had noticed...

Cliffe's investigation of a seemingly innocuous crack in the ceiling leads him to a world he would never have believed existed. Andulan Ruskin daydreams her life away on her parents' farm in the Yorkshire Dales. She lives in a world far removed from Cliffe's, in more ways than one. A chance parting of the thin veil that separates their worlds draws them closer together in a way that could not have been forseen and which has far-reaching consequences.

Versehentlich katapultiert sich das ewig neugierige Urmel in die Vergangenheit. Zum Glück sind Tim, Wawa und Ping dabei. Aber die Reise ist alles andere als harmlos! Vom Ufer der Ursuppe geht es über die Entwicklung des ersten Lebens und die Dinosaurier in die erste Siedlung der Menschen. Der Professor versucht, sie in die Gegenwart zurückzuholen - aber ob ihm das ohne Panne gelingt?

How did Joe, Fred, and Sam end up in King Arthur's court? It all started with The Book, a present from Joe's magician uncle. One minute they were looking at pictures of knights in The Book—and the next minute they are knights, battling fire-breathing dragons and gross-smelling giants! Can the...

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Jack and Annie are on a mission to save Merlin from his sorrows! The brother-and-sister team travel back in the magic tree house to the period known as the Renaissance...

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Cannon fire! That's what Jack and Annie hear when the Magic Tree House whisks them back to the time of the American Civil War. There they meet a famous nurse named...

During a visit to the witch's tree where his aunty Hester lives, Bertram learns the origins of the real source of the River Thames and the story of an evil magician who sought revenge of the kings and his sons. The Ghostly Ship is the fifth audiobook in the Bertram Bile time travel adventure series, which follows the course of the River Thames from its source in Gloucestershire to the North Sea in Essex.

Books 5 and 6 of the New York Times bestselling Magic Tree House series! Night of the Ninjas: Have you ever met a real live ninja? Jack and Annie do when the Magic Tree House whisks them back to ancient Japan, where they find themselves in the cave of a ninja master. Will they learn the secrets...

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Who would burn books? Jack and Annie find out when the Magic Tree House whisks them back to ancient China. There, a powerful emperor called the Dragon King has ordered...

A thrilling sequel to Ted Bell's New York Times best seller Nick of Time, in which the young time traveler Nick McIver must prove his courage once more, on two fronts: in World War Two-era England, where Nazis have invaded his homeland, and in America during the Revolution, where Nick stands shoulder to shoulder with General George Washington.

Books 9 and 10 of the New York Times bestselling Magic Tree House series! Dolphins at Daybreak: It's sink or swim for Jack and Annie when the Magic Tree House whisks them off to the middle of the ocean. Luckily, they find a mini-submarine on a coral reef. Unluckily, they are about to meet a...

Thorkell was once the most famous court jester in all the land - best friend to King Aethelstan and the man who rallied the troops before every successful battle. He loved nothing more than warming up a crowd ready to receive the king. Things were a bit more tricky these days, what with him being dead and not as handsome looking as he was before he lost his skin and bones. If only Thorkell could perform for a crowd, just once more, it would mean the world (and the underworld) to him. Is there anything that Bertram and Molly can do to make a jester laugh one more time?

When a milkmaid spots two deadly shrews close to her prized cow, their death is the only thing on her mind. Little does the milkmaid know that the shrews are 11-year-old time travelers Bertram and Molly. What will the milkmaid do to Bertram and Molly if she catches them? Could this be the end of our magical time-travelling duo? Based on the actual British folklore of the "shrew ash" long believed to be a cure for a lame cow.

History can be hilarious, at least in the hands of author Dan Gutman. Washington Post In New York Times bestselling author Dan Gutman's all-new series, which blends fascinating real history with an action-packed and hilarious adventure, four very different kids are picked by a mysterious...

Percy Jackson meets Indiana Jones in the final installment of the New York Times bestselling epic adventure Seven Wonders! Jack, Marco, Cass, and Aly’s quest to find the seven magic orbs buried beneath each of the Seven Wonders of the Ancient World has hit a perilous snag. King Uhla’ar has...