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Thanks to The Book, Joe, Sam, and Fred are back in the Stone Age, where there aren't any math problems. But there's a tribe of hostile cavewomen, a hungry-looking saber-toothed tiger, a bone-rattling earthquake, and a woolly mammoth who wants to turn them into toe jam. Worst of all, Joe, Sam, and Fred have discovered that writing hasn't been invented yet - so how can The Book get them back home?

Did you know that our word Thursday comes from the Viking god Thor...as in Thor's Day? Neither did the Time Warp Trio. Did you know that if you say "Thursday" over and over again too close to a certain magic book, you will get sucked back 2,000 years to the time of the Vikings? Neither did the Time Warp Trio. Can our trusty heroes, Joe, Sam, and Fred, survive a wild ride with Leif Eriksson, match wits with his evil cousin, and get back home in one piece?

Thanks to the magic of The Book, Joe, Sam, and Fred are back in the wild, wild West - and it's proving to be way too wild. They're almost stampeded by a herd of crazed cattle and nearly suffocated by foul cow fumes! Then they meet a friendly Indian chief, but why do his warriors keep staring at their scalps?

One minute the guys are wrestling around in Joe's room. The next minute, The Book has transported them back to ancient Rome - and face-to-face with one big ol' gladiator. Luckily, Joe, Sam, and Fred, the Time Warp Trio, have seen enough professional wrestling to make it through gladiator school - but not even a smackdown body slam can help them at the Colosseum.

They've conquered the summer reading list, Greek monsters, and Roman gladiators, but a poetry assignment? Stuck writing haikus for English class, Joe, Sam, and Fred take one little break from doing their homework and - BAM! - they land smack-dab in the middle of 17th-century Japan.

Blackbeard, the meanest, ugliest pirate ever, has our accidental time travelers cornered. Can Fred, Sam, and Joe find The Book in time - or will they become shark munchies?

One minute, Joe, Sam, and Fred are shooting hoops in Brooklyn; the next, they're on a court that is definitely not in New York and surrounded by a bunch of players wearing feathered headdresses and not much else. And the other team is saying something about losers being the next blood sacrifices.

Nathan Bannister thinks he's finally mastered his magic. But that doesn’t do him much good when he loses his magical knife to the enemy. He's terrified his rivals will use it against him. Granny get’s involved, but things go from bad to worse when Lashtang's biggest enemy escapes from prison. Knowing he needs help, Nathan turns to some of England's old kings, as his enemies bring back the dead. But in the end Nathan realizes that only he and Poppy can make things right. Can Nathan reclaim his magic knife and the throne, or will his final battle end in tragedy?

From the million-copy-selling author of The Roman Mysteries comes a nail-biting time-travel adventure in Roman London - where past meets present. Billionaire Solomon Daisy is obsessed with the skeleton of a blue-eyed girl from Roman London. He has managed to invent a time machine so that he can go and find her, but it's estimated that for each hour spent in the past, the time traveller's life will be shortened, so Solomon recruits a potential child time traveller: Alex Papas, a 12-year-old boy who knows a smattering of Greek and Latin.

Otto and Sheed are the local sleuths in their zany Virginia town, masters of unraveling mischief using their unmatched powers of deduction. And as the summer winds down and the first day of school looms, the boys are craving just a little bit more time for fun, even as they bicker over what kind of fun they want to have. That is, until a mysterious man appears with a camera that literally freezes time.

The Time Warp Trio is staying home for once, and Joe's got a perfect way to keep The Book from getting lost. But when the guys find themselves stuck on top of the half-finished Brooklyn Bridge, they realize that Joe's foolproof Book Tracker wasn't so foolproof after all. Now, the guys have to make their way through 1877 Brooklyn and find The Book before they uninvent the light bulb, the phonograph, and - oh, no! - baseball!

Life used to be great for Rose: full of friends, a loving mom, and a growing fashion blog. But when her mother dies in a car crash, Rose is sent away to live with a strange grandmother she hardly knows and forced to attend a new school where mean girls ridicule her at every turn. The only place Rose finds refuge is in her grandmother’s greenhouse. But one night, she sees a strange light glowing from within it. She goes to investigate...and finds herself transported back 500 years to Hatfield Palace.

How does it feel to be a hero at age 13 but not a hero in your own time? Imagine blasting back in time to save lives - or try to - in the great fires of history...making life or death decisions in the literal heat of the fire. In Rescue Chronicles, Luc Sullivan discovers the incredible power of his choices.

When 12-year-old Georgie makes friends with an eccentric retired scientist, she becomes the test subject for a thrilling new experiment: a virtual reality, 3-D version of the future. Then a deadly virus threatens to wipe out every dog in the country, and Georgie’s beloved dog, Mr Mash, gets sick. Which is bad - but worse is still to come. As the world is thrown into chaos, Georgie embarks on a desperate quest: to save every dog on earth and all of humanity....

Twelve-year-old Nathan Bannister remains awestruck by his crazy trips through time, and now he has an enchanted knife. But before he can unravel the weapon's connection to his family, he misplaces his younger sister Poppy in the mystical world of Lashtang. In his quest to recover his sister, Nathan must fight side-by-side with King Richard and determine both friends and foes in medieval London. With Granny's delicious cakes for sustenance, he realizes that deducing the secret behind the knife may be the key to saving his sibling.

Twelve-year-old Nathan Bannister fantasizes about never having to go to class again. But his dreams never included a crazy wizard and a hot air balloon waiting inside his bedroom! Nathan is cold, scared, and still in his pajamas when the mad magician abandons him in medieval London. Desperate to return to his Granny's house in the modern world, Nathan falls in with a ragtag crew of street kids. As he attempts to find friends and allies, the young boy must escape a wicked baron and rescue the girl if he wants any chance of returning home.

In honor of Madeleine L'Engle's 100th Birthday, fans are invited to enjoy this archival audiobook, originally recorded in 1996 and newly restored! Listen to the voice of the author as Madeleine L'Engle reads A Swiftly Tilting Planet.

In honor of Madeleine L'Engle's 100th Birthday, fans are invited to enjoy this archival audiobook, originally recorded in 1994 and newly restored! Listen to the voice of the author, as Madeleine L'Engle reads A Wind in the Door.

In honor of Madeleine L'Engle's 100th birthday, fans are invited to enjoy this archival audiobook, originally recorded in 1993 and newly restored! Listen to the voice of the author as Madeleine L'Engle reads her Newbery Medal-winning novel A Wrinkle in Time.

A sinister school where graduation means death.... A monstrous mystery lurking below a quiet London street.... A desperate plea for help delivered by...hang on. A potted plant? The Doctor has been summoned. The galaxy is in terrible danger, and only a Time Lord can save it. But to do so, she must break in to an ancient vault on a remote and frozen world - from which nobody has ever returned alive.... Can the Doctor and her friends Yaz, Ryan and Graham uncover the shocking secret in Vault 13?