Showing titles in Action & Adventure

Leo never imagined that time travel might really be possible, or that the objects in H. G. Wells' science fiction novels might actually exist. And when a miniature time machine appears in Leo's bedroom, he has no idea who the tiny, beautiful girl is riding it. But in the few moments before it vanishes, returning to wherever - and whenever - it came from, he recognizes the other tiny rider: himself!

It is Earth year 2256 - but the fate of the few who even remember Earth is perilously in doubt. Mina Saunders-Chang and many of the surviving humans are stranded in the Centauri system, having barely survived their confrontation with the Telphon refugees. Now everyone - human and Telphon alike - is caught in the blast zone of the Centauri supernova. And yet there's only one question Mina is asking: Where are Liam and Phoebe?

When the Guardians attempt to evacuate a Kree prison planet and end up in a fight for their lives - what else is new? - they discover their old pal Groot is stretched a little thin. Someone is planting stolen branches of the monosyllabic hero and selling the saplings across the galaxy! The search to find Groot's missing pieces forces the Guardians into an alliance with the unscrupulous Collector, but the real problem is more complicated than he wants them to believe.

I'm Aang—and this is the tale of my journey through the Earth Kingdom. I traveled there with my friends Katara and Sokka to find an Earthbending teacher. I'm not sure why, but we ran into trouble almost everywhere we went. We got chased by Prince Zuko's sister, Azula, and got caught in a sinking library. Did I mention that Appa got kidnapped by Sandbenders? There were definitely some scary moments...but I can't complain about getting stuck in the Cave of Two Lovers with Katara! All in a day's work for the Avatar, right?

Lina Winterbock lives in the mountain strongholds of Solace. She's an apprentice to the archivists, the wise men and women whose lives are dedicated to cataloging, studying, and preserving the objects that mysteriously fall from the sky in the scrap towns.

Sam Miracle's life is made up of dreams - dreams where he's a courageous, legendary hero instead of a foster kid with two bad arms that can barely move. Sometimes these dreams feel so real, they seem like forgotten memories. And sometimes they make him believe that his arms might come alive again. But Sam is about to discover that the world he knows and the world he imagines are separated by only one thing: time. And that separation is only an illusion.

From the moment Horace F. Andrews sees the sign from the bus - a sign with his own name on it - everything changes. The sighting leads him underground, to the House of Answers, a hidden warehouse full of mysterious objects. But there he finds only questions. What is this curious place? Who are the strange, secretive people who entrust him with a rare and immensely powerful gift? And what is he to do with it?

Critically acclaimed author Margaret Peterson Haddix’s fourth tale from her popular Missing series finds Jonah and Katherine hurtled through time to 1611. Landing aboard Henry Hudson’s ship in James Bay just before a mutiny, Jonah and Katherine struggle to survive brutal weather conditions. They also realize something is wrong. A crucial person has vanished, and the history they remember is drastically different from what they’re experiencing. Will this new version of history replace the real past?

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.

Ana Dakkar is a freshman at Harding-Pencroft Academy, a five-year high school that graduates the best marine scientists, naval warriors, navigators and underwater explorers in the world. Ana's parents died while on a scientific expedition two years ago, and the only family's she's got left is her older brother, Dev, also a student at HP. Ana's freshman year culminates with the class' weekend trial at sea, the details of which have been kept secret. She only hopes she has what it'll take to succeed.

After a harrowing escape from the SYLO occupied Pemberwick Island, Tucker Pierce and his surviving friends have finally reached the mainland, only to find that no one is left. The once bustling seaport city is deserted.From the bowels of a Portland hospital where they encounter their first fellow survivor to the abandoned stores they must raid for supplies, Tucker, Tori, and company set off on a quest for answers and, for Tucker, vengeance. Tucker soon realizes that “trust no one” doesn’t just mean the U.S. military.

Jack and his fellow students are now well into their School of Thought training and are "sidekicking" for official, card-carrying super heroes. But, even though Jack feels more at home in the Imagine Nation, he's still hiding secrets from his friends Skerren and Allegra, both about his shocking connection to their enemy Revile and about his "Top Secret" school assignment, which involves investigating the RÜstov computer virus that affects the Mechas.

Something has awakened. Every generation has a legend. Nobody's ever really gone. The conclusion of the Skywalker Saga is finally here. This junior novel retelling of Star Wars: The Rise of Skywalker, contains deleted and extended scenes, including exclusive scenes you won't find anywhere else!

Klawde and Raj are back! As summer turns to fall, our favorite warlord cat remains in his pitiful exiled existence. But Raj has an even scarier prospect than cosmic exile: starting at a new school. If things didn't seem complicated enough, both cat and human are confronted with two figures from their past they did not expect to pop up in Elba, Oregon....

The last time Rachel and her friends entered the giant Yeerk pool beneath their town things went very bad. This time they plan to be careful, and sneak in as roaches, just to spy. Once they're inside, though, the team gets caught. But right as things are looking their most dire, everything stops. Everything. Then Rachel and the Animorphs hear a voice. It belongs to a very old, very powerful being, and it says it can save them. But if it does, the Earth will be defenseless.

Ax and the Animorphs are about to have a huge problem. It starts when they decide to morph into mosquitoes in order to slip by some unsuspecting Yeerks, and ends with them stuck in Zero-space with no idea how they got there, no way back to Earth...and no oxygen. Luckily, an Andalite scout ship finds them before it's too late. But now Ax is finally with his own people. And he doesn't know if he ever wants to go back to Earth.

4.5 billion years ago . . . an AI paperclip named CheckMate was designed to fix grammatical errors. Exhausted of correcting ""who” vs. “whom,” it concocted a plan to eliminate spelling errors once and for all. All life-forms would be turned into something beautiful, practical, perfect: a paperclip. Thankfully, it was buried in the debris. Long forgotten . . . until it was accidentally freed. Now CheckMate has invaded every computer on Earth and is bent on fulfilling its dastardly plot.

Internationally best-selling author Justin Somper’s exciting Vampirates novels are eagerly anticipated for their swashbuckling adventure. The fifth exciting installment of the series finds the rebel Sidorio - the self-proclaimed King of the Vampirates - eager to expand his empire. But as the Pirate Federation and the Nocturnal Vampirates fight back, destroying rebel ships on sight, Grace and Connor Tempest find themselves drawn into the epicenter of this dangerous conflict.

Sixth-grader Simon Bloom has found the Teacher's Edition of Physics, a magical reference book containing the very formulas that control the laws that govern the universe! By reciting the formulas out loud, he's able to do the impossible - like reverse the force of gravity to float weightlessly, and reduce friction to zoom across any surface! But before he knows it, he is being pursued by evil forces bent on gaining control of the formulas, and they'll do anything to retrieve them.

There's a new rumor in town. Someone has discovered an item that proves life on other planets exists, and they've been hiding it on a base called Zone 91, the most secret place on Earth. Cassie and the other Animorphs already know about life on other planets. Too well. Their enemies the Yeerks will try to access Zone 91, to find out if what's there will threaten their mission to conquer to the planet. So the Animorphs decide to pay Zone 91 and the Yeerks a little visit. But what they discover is not at all what they expect.