They are recruited by an agency that no one knows exists, with only one purpose—to fix broken history. Because time travel is here, and there are those who would go back in time and change the past. That’s why the TimeRiders exist: to protect us. To stop time travel from destroying the world...

    What does that say for the future of the world ... for the past ... for the present? Two Time City boys, determined to save it all, think they have the answer in Vivian Smith, a young Twenty Century girl whom they pluck from a British train station at the start of World War II. But not only have they broken every rule in the book by traveling back in time — they have the wrong person! Unable to return safely, Vivian's only choice is to help the boys restore Time City or risk being stuck outside time forever...

    This is the time of The Changes – a time when people, especially adults, have grown to hate machines and returned to a more primitive lifestyle. It is a time of hardship and fear…When 16-year-old Geoffrey, a “weathermonger” starts to repair his uncle’s motorboat, he and his sister Sally are condemned as witches. Fleeing for their lives, they travel to France – where they discover that everything is normal. Returning to England, they set out to discover why the country is under this mysterious spell. Only discovering the origin of the deadly magic will allow them to set the people free of its destructive influence.Peter Dickinson began writing the books after he'd had a nightmare. The trilogy is not sequential; rather, each book explores a different aspect of England during the time that simply became known as The Changes.

    Eva's great desire is to go aboveground, and her wish comes true, though not as she had imagined. On the surface, Eva goes in search of other humans--she has never met one--and soon meets both friend and foe.

    His own people have turned on him. His title is worthless. All he has is a battletorn war machine and a loyal crew of men.Deryn Sharp is a commoner, disguised as a boy in the British Air Service. She's a brilliant airman. But her secret is in constant danger of being discovered.With World War I brewing, Alek and Deryn's paths cross in the most unexpected way…taking them on a fantastical, around-the-world adventure that will change both their lives forever.

    Anxious to compete, Russian prospectors commissioned inventor Leviticus Blue to create a great machine that could mine through Alaska’s ice. Thus was Dr. Blue’s Incredible Bone-Shaking Drill Engine born.But on its first test run the Boneshaker went terribly awry, destroying several blocks of downtown Seattle and unearthing a subterranean vein of blight gas that turned anyone who breathed it into the living dead.Now it is sixteen years later, and a wall has been built to enclose the devastated and toxic city. Just beyond it lives Blue’s widow, Briar Wilkes. Life is hard with a ruined reputation and a teenaged boy to support, but she and Ezekiel are managing. Until Ezekiel undertakes a secret crusade to rewrite history.His quest will take him under the wall and into a city teeming with ravenous undead, air pirates, criminal overlords, and heavily armed refugees. And only Briar can bring him out alive.

    One ordinary sort of morning they receive a correspondence informing them that a gentleman is on his way to visit, a Mr Webster. Visitors to Larklight are rare if not unique, and a frenzy of preparation ensues. But it is entirely the wrong sort of preparation, as they discover when their guest arrives, and a Dreadful and Terrifying (and Marvellous) adventure begins. It takes them to the furthest reaches of Known Space, where they must battle the evil First Ones in a desperate attempt to save each other - and the Universe. Recounted through the eyes of Art himself, Larklight is sumptuously designed and illustrated throughout.

    Poor Lilly is out fishing with her trusty sea-cat when greedy raiders pillage the town--and kidnap the prime minister's daughter. Her village blamed, Lilly decides to find the girl. Off she sails, in secret. And with a ransom: a mysterious talking jewel. "If I save his daughter," Lilly reasons, "the prime minister's sure to reward me." Little does Lilly know that it will take more than grit to outwit the tricky, treacherous piratical tribes!

    Four ordinary things lead the Watson children on an extraordinary adventure to a magical land called Elidor. In pursuit of four ancient treasures, the forces of evil have crossed over into our world, and it falls to the Watson children to find the treasures, seal the bridge between worlds, and guard the strayed unicorn Findhorn . . . even though their heroism may cost them everything.

    It's the only crop the Empyrean government allows the people of the Heartland to grow. And the genetically modified strain is so aggressive that it takes everything the Heartlanders have just to control it. As captain of the Big Sky Scavengers, Cael and his crew sail their rickety ship over the corn day after day, scavenging for valuables, trying to earn much-needed ace notes for their families. But Cael's tired of surviving life on the ground while the Empyrean elite drift by above in their extravagant sky flotillas. He's sick of the mayor's son besting Cael's crew in the scavenging game. And he's worried about losing Gwennie, his first mate and the love of his life, forever when their government-chosen spouses are revealed. But most of all, Cael is angry, angry that their lot in life will never get better and that his father doesn't seem upset about any of it. Cael's ready to make his own luck . . . even if it means bringing down the wrath of the Empyrean elite and changing life in the Heartland forever.

    The colony ship they arrived on is aflame. The rest of their contingent is dead. They've only received half their training, and they are being asked to conquer an entire planet. Before they can, however, they must first survive each other. In this gritty tale of youths struggling to survive, Hugh Howey fuses the best of young adult fantasy with the piercing social commentary of speculative fiction. The result is a book that begs to be read in a single sitting. An adventurous romp that will leave readers exhausted and begging for more.

    She knows very little about her android mother’s past, so when her grandmother arrives and attacks her mother, little Amy wastes no time: she eats her alive.Now she carries her malfunctioning granny as a partition on her memory drive, and she’s learning impossible things about her clade’s history – like the fact that the failsafe that stops all robots from harming humans has failed… Which means that everyone wants a piece of her, some to use her as a weapon, others to destroy her.

    The sky looms frigid white. The electricity falters. Airplanes everywhere crash to the ground. But the Givens are saved by mysterious strangers, three fearsome and beautiful beings who force a plain silver bracelet onto each sister’s wrist. Within moments, the sky comes down in a crushing sheet of light and everything around them is gone.Shielded from the devastation by their silver adornments, the Givens suddenly find themselves elsewhere, a strange new Earth where restaurants move through the air like flying saucers and the fabric of time is manipulated by common household appliances.Soon Hannah and Amanda are joined by four other survivors from their world—a mordant cartoonist, a shy teenage girl, a brilliant young Australian, and a troubled ex-prodigy. Hunted by enemies they never knew they had and afflicted with temporal abilities they never wanted, the sisters and their companions begin a cross-country journey to find the one man who can save them—before time runs out.

    It has been eighteen years since the Heterodyne Boys, benevolent adventurers and inventors, disappeared under mysterious circumstances. Today, Europe is ruled by the Sparks, dynasties of mad scientists ruling over—and terrorizing—the hapless population with their bizarre inventions and unchecked power, while the downtrodden dream of the Hetrodynes’ return.At Transylvania Polygnostic University, a pretty, young student named Agatha Clay seems to have nothing but bad luck. Incapable of building anything that actually works, but dedicated to her studies, Agatha seems destined for a lackluster career as a minor lab assistant. But when the University is overthrown by the ruthless tyrant Baron Klaus Wulfenbach, Agatha finds herself a prisoner aboard his massive airship Castle Wulfenbach—and it begins to look like she might carry a spark of Mad Science after all.From Phil and Kaja Foglio, creators of the Hugo, Eagle, and Eisner Award-nominated webcomic Girl Genius, comes Agatha H and the Airship City, a gaslamp fantasy filled to bursting with Adventure! Romance! and Mad Science!

    Edgar, a gifted climber, is a lonely boy scaling the perilous cliffs that separate the three realms of Atherton: a humble fig grove; a mysterious highland world of untold beauty and sinister secrets; and a vast wasteland where he must confront an unspeakable danger that could destroy the people of Atherton. When Edgar discovers a book which contains the history of Atherton's origins and ultimate apocalypse, his world quite literally begins to turn inside out.