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When best friends Dak Smyth and Sera Froste stumble upon the secret of time travel - a hand-held device known as the Infinity Ring - they're swept up in a centuries-long secret war for the fate of mankind. Recruited by the Hystorians, a secret society that dates back to Aristotle, the kids learn that history has gone disastrously off course. Now it's up to Dak, Sera, and teenage Hystorian-in-training Riq to travel back in time to fix the Great Breaks . . . and to save Dak's missing parents while they're at it.

A statue, a coin, an old book - they look as dusty as everything else in the Faulkner Antiquarian Bookstore. But when Sam Falkner slips the coin into the statue, he's swept back to Scotland in A.D. 900 - the age of the Vikings. He must find both the statue and another coin in order to escape. It's the first journey in an adventure that will take him to ancient Egypt, World War I, even Dracula's castle...and a mystery that will end only if Sam can find his father in time - literally.

When Eleanor Roosevelt time travels to Nolan and Olive's house in modern-day Illinois, the kids don't know who she is at first. After all, she's old and wearing a hairnet. But the First Lady of the United States - some 80 years ago, that is - isn't a mystery for long when she starts spouting things like, "You must do the things you think you cannot do." Fresh off a visit from Ben Franklin, Nolan and Olive know what they're in for with this latest guest: an adventure.

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.

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!

Siblings Abby and Doc have been racing through time to fix history after Abraham Lincoln, Abigail Adams, and Neil Armstrong started popping up in the wrong places, at the wrong times. When Amelia Earhart accidentally lands her plane in ancient Greece, Abby and Doc partner with Kyniska, the first woman to win the Olympics, to get Amelia back on track to finish her first solo flight across the Atlantic.

The students of Ms. Maybee's class used to think history was boring, but that was before time started to get twisted! When a spaceship carrying Neil Armstrong and Buzz Aldrin leaves 1969 - and lands in 1869 Texas - cowboy Nat Love decides to trade in his horse for a trip to the moon. Can siblings Doc and Abby untwist history and get everyone back where they belong? Houston, we have a problem!

When 12-year-old Gertie Milk washes up on the island of Skuldark, she finds that all of her memories are gone. Home to helpful Slug Lamps, delicious moonberries, and a ferocious Guard Worm, the island is full of oddities, including a cozy cottage containing artifacts from every corner of history. It is there that Gertie discovers she has been chosen as the next Keeper of Lost Things, tasked with the mission of returning objects to history's most important figures right when they need them most.

Hold your horses! Jack and Annie must find four secrets of greatness for Merlin the magician. To start, they travel back in time to meet Alexander the Great. He should know all about greatness, right? But young Alexander is bossy, vain, and not great at all! How can they learn from him? It’s going to take a wild black stallion, magic from Merlin, and a lot of bravery to succeed. Are Jack and Annie clever and bold enough to complete their mission?

Fourth grader Odessa Green-Light lives with her mom and her toad of a little brother, Oliver. Her dad is getting remarried, which makes no sense according to Odessa. If the prefix "re" means "to do all over again", shouldn't he be remarrying Mom? Meanwhile, Odessa moves into the attic room of their new house. One day she gets mad and stomps across the attic floor. Then she feels as if she is falling and lands...on the attic floor. Turns out that Odessa has gone back in time a whole day!

Set against the burgeoning Civil Rights movement of the 1960s, and then just before the outbreak of the Civil War, The Freedom Maze explores both political and personal liberation, and how the two intertwine. In 1960, 13-year-old Sophie isn't happy about spending the summer at her grandmother's old house in the Bayou. But the house has a maze Sophie can't resist exploring once she finds it has a secretive and mischievious inhabitant.

In The Secret Explorers and the Tomb Robbers, Gustavo (history expert) and Kiki (engineering expert) are set the mission of stopping the Cairo Museum from closing down. They travel back in time to ancient Egypt and are soon drawn into a tense, thrilling adventure that involves breaking into pyramids, learning ancient Egyptian hieroglyphics and stopping thieves hoping to rob all the treasure from the Pharaoh's tomb.

I'm Humza Khan, the greatest 11-year-old rapper Eggington ever had. I've also faced deadly alien slugs, killer aunties and double maths. But now, I (and my best friend Umer I guess) face something even scarier - my dad! He's pretty fed up with us being naughty, so he's sending us away...to school. But this is not ordinary school. This is a special summer school in Pakistan, and man, something weird is going on - someone has been messing with time! I may have to save the world again....

A new spine-chilling collection of 12 adventures packed with terrifying Doctor Who monsters and villains, just in time for Halloween. Written by Jacqueline Rayner, Mike Tucker, Paul Magrs, Richard Dungworth, Scott Handcock and Craig Donaghy, each story stars an incarnation of the Doctor on a brand-new adventure in time and space. Each also features a frightening nemesis for the Doctor to face, plus appearances from favourite friends and companions such as Sarah Jane, Jo, Ace and Donna.