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Every year the futuristic school, Cragbridge Hall, holds its most popular tournament, the Hunt: a series of challenges that range throughout the school and require the use of its amazing inventions like its holographic time machine! But this year is different. Rather than a monetary or academic reward, this year's winner will be the recipient of a carefully-guarded school secret: a secret that could prove both powerful and dangerous.

How many 14-year-old boys would turn down an offer of time travel to any baseball game in history? Certainly not die-hard New York Yankees fan Matt Collier. Accompanied by the Time Keeper, guardian of Time throughout the universe, Matt becomes the batboy for his beloved team and tries to change the outcome of the 1960 World Series, the first ever to end with a home run.

Jonah and Katherine journey to 1918 with the Romanov children in the sixth tale of the New York Times best-selling The Missing series. It's a paradox: When Jonah and Katherine find themselves on a mission to return Alexei and Anastasia Romanov to history and then save them from the Russian Revolution, they are at a loss. Because, in their own time, the bones of Alexei and Anastasia have been positively identified through DNA testing. What hope do they have of saving Alexis and Anastasia's lives when the twenty-first century has proof of their deaths?

Dan Gutman has won a wide and growing audience among young readers, who have eagerly devoured all the books in the sports-loving author’s Baseball Card Adventure series. In Ted & Me, time-traveling Stosh has finally been found out by the FBI. Tasked with using his Ted Williams card to go back to 1941 to prevent the attack on Pearl Harbor, Stosh also seizes on the chance to help the Splendid Splinter add even more home runs to his already legendary tally.

Oscar Ogilvie is living with his dad in a house at the end of Lucifer Street, in Cairo, Illinois, when world events change his life forever. The great stock market crash has rippled across the country, and the bank takes over their home - along with all their cherished model trains. Oscar’s dad is forced to head west in search of work, and Oscar must move in with his no-nonsense aunt Carmen. Only a mysterious drifter helps alleviate Oscar’s loneliness.

Ka is the most beautiful cat that Topher Hope has ever seen. But Ka is no ordinary cat and though she chooses to live with Topher, in present-day England, she sometimes disappears for days at a time. Topher decides he must try and follow her.

Ka, the time-travelling cat, has vanished again, leaving a clue, a Roman word on Topher’s computer - ‘Ca;;LLevA’. At first, Topher isn’t worried. Surely she’s safe among the cat-loving Romans? But when he follows her to Roman Britain, they’re both soon embroiled in conflict. As oppressed Britons fight the Romans, Topher faces a desperate choice - should he help his British brother or his Roman friend?Another thrilling adventure for older children about Ka and Topher, from bestselling author Julia Jarman.

When Sigurd the Viking arrives back in Flotby, not everyone’s pleased to see him - in fact the whole town quickly goes down with a severe attack of Vikingitis! Mr and Mrs Ellis don’t know what to do with him until they hit upon a brilliant idea - perhaps a short spell at school would teach him some twentieth-century manners...

An ancient artifact buried deep within the TARDIS leads the Doctor back to London, where a deadly predator prowls the tunnels beneath the city. As the Time Lord and her friends investigate, they uncover a mystery that will take them from a secret mountain base to the depths of the ocean - and if they cannot solve it, one of them will perish. In order to save her friend, the Doctor must solve the riddle of...the Maze of Doom!

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?

Ka the time-travelling cat has disappeared again, and Topher knows that she is in terrible danger. For Ka has gone to Tudor England, a time when cats were tortured. Topher must try to find her, and in doing so, meets up with Doctor Dee - magician and astronomer to Queen Elizabeth I. But Doctor Dee is searching for something far more important than a cat. He must satisfy the Queen by finding the elusive Philosopher’s Stone...Another amazing adventure with Ka and Topher from Julia Jarman.

Families are complicated! Molly’s dad seems so lonely. He lives on his own, he won’t get a pet and he doesn’t get on with his brother.... Best friends Molly and Beth suspect his problems lie in his past, but what can two 13-year-olds do about that? Well, when they have a time-travelling door, maybe they can do something! The girls go back to 1975 hoping to right some wrongs - if they can navigate 1970s cars, food and boybands. And if the colourful fashions don’t blind them first!

Beth didn’t want to move to Dublin - she misses her old life and her best friend back in London - and to make matters worse someone keeps messing up her new room.... When she discovers that a boy called Robbie, from the 1950s, is slipping through time and into her house, things start to get really weird! Beth and Robbie create havoc together, learn about their different worlds and manage to help each other when they’re down. But the 1950s and the present day sometimes seem very far apart.... Can their friendship stand the test of time?

With tensions in Prague rising at the height of World War II, Isaac Wolf is forced to leave home with nothing more than a small backpack and a pendant in the shape of an eternity knot. His parents believe the pendant will keep him safe - if he can discover what it really means. This clue leads him to Rookskill Castle, home of the Special Alternative Intelligence Unit where gifted children can learn to harness their powers to support the Allies' cause.

News alert! It has just been discovered that there are NO MORE TACOS left anywhere in the world. This is a huge problem because, as you know, dragons love tacos. If only there was a way for the dragons to travel back in time, to before tacos went extinct. Then they could grab lots of tacos and bring them back! It’s the perfect plan, as long as there’s no spicy salsa. You remember what happened last time....

This is a story of things that are not possible. It's not possible for Amy to see spirits. (She does.) It's not possible that Amy and Moo can communicate using only their minds. (They do.) It's not possible to time-travel. (Yet.) And it's definitely not possible that witches exist. (Seriously?) None of these things are possible. (Until now....)

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.

The New York Times best-selling series reaches an epic climax! James Dashner returns to the series he began - just in time for Dak, Sera, and Riq to make their final stand in ancient Greece alongside a young Alexander the Great. Fix the past. Save the future. It's now or never!