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...

    Ripped from their parents as babies, they are being protected from a horrible evil of devastating power, an evil they know nothing about.Until now.Before long, Kate, Michael, and Emma are on a journey through time to dangerous and secret corners of the world...a journey of allies and enemies, of magic and mayhem. And — if an ancient prophesy is correct — what they do can change history, and it is up to them to set things right.

    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. First stop: Spain, 1492, where a sailor named Christopher Columbus is about to be thrown overboard in a deadly mutiny!

    She had no idea they were so dangerous.   Boston, 1891. Sophia Tims comes from a family of explorers and cartologers who, for generations, have been traveling and mapping the New World—a world changed by the Great Disruption of 1799, when all the continents were flung into different time periods.  Eight years ago, her parents left her with her uncle Shadrack, the foremost cartologer in Boston, and went on an urgent mission. They never returned. Life with her brilliant, absent-minded, adored uncle has taught Sophia to take care of herself. Then Shadrack is kidnapped. And Sophia, who has rarely been outside of Boston, is the only one who can search for him. Together with Theo, a refugee from the West, she travels over rough terrain and uncharted ocean, encounters pirates and traders, and relies on a combination of Shadrack’s maps, common sense, and her own slantwise powers of observation. But even as Sophia and Theo try to save Shadrack’s life, they are in danger of losing their own.The Glass Sentence plunges readers into a time and place they will not want to leave, and introduces them to a heroine and hero they will take to their hearts. It is a remarkable debut.

    But the forest’s power has begun to fade and the Valley is in danger. Tilja is the youngest of four brave souls who venture into the Empire together to find the mysterious magician who can save the Valley. And much to her amazement, Tilja gradually learns that only she, an ordinary girl with no magical powers, has the ability to protect her group and their quest from the Empire’s sorcerers.From the Hardcover edition.

    Alex discovers his powers just as he is ready to enroll in his freshman year at a prestigious West Coast university, causing an unexpected detour in his plans. In a short period of time, Alex Fine becomes one of the richest people in the world, with virtually limitless power.In a hastily arranged scheme, Alex transforms into a digital Robin Hood, as he steals money from a criminal oligarch to fulfill his philanthropic goals. It is the story of a young man who wants to use his powers for good, but makes mistakes en route to discovering the truth behind his supernatural abilities.

    His parents are both scientists and they usually have all the answers. Dad mutters something about Albie's mum being alive and with them in a parallel universe. So Albie finds a box, his mum's computer and a rotting banana, and sends himself through time and space to find her...

    Suddenly the sky peels away like fabric and from the gaping hole fall two curious-looking children. Peter Schock and Kate Dyer have fallen straight from the twenty-first century, thanks to an experiment with an antigravity machine. Before Gideon and the children have a chance to gather their wits, the Tar Man takes off with the machine -- and Kate and Peter's only chance of getting home. Soon Gideon, Kate, and Peter are swept into a journey through eighteenth-century London and form a bond that, they hope, will stand strong in the face of unfathomable treachery.

    Wells as a time-traveling investigator.Characters real and imaginary come vividly to life in this whimsical triple play of intertwined plots, in which a skeptical H. G. Wells is called upon to investigate purported incidents of time travel and to save lives and literary classics, including Dracula and The Time Machine, from being wiped from existence.What happens if we change history?

    There they meet Mardian, one-time servant and closest friend of Duke Otho, ruler of the country. He tells them a terrible secret - he is under the enchantment of the evil sorcerer Almeric, and is forced to assume a wolf's shape every night. Unable to return to the castle, the children are his only hope. And so John and Margaret disguise themselves as children of the court and embark on a thrilling and frightening quest to reveal Almeric's true nature and gain the Duke's confidence. But then Almeric becomes suspicious, and suddenly all their lives are in danger...

    In a few months, he’s going to die.One MissionJack needs to find seven magic loculi that, when combined, have the power to cure him.One ProblemThe loculi are the relics of a lost civilization and haven’t been seen in thousands of years.Seven WondersBecause they’re hidden in the Seven Wonders of the Ancient World.

    Now the nobleman, and collector of rare artifacts, has entrusted Bingmei and the skilled team with a treacherous assignment: brave the wilderness’s dangers to retrieve the treasures of a lost palace buried in a glacier valley. But upsetting its tombs has a price.Echion, emperor of the Grave Kingdom, ruler of darkness, Dragon of Night, has long been entombed. Now Bingmei has unwittingly awakened him and is answerable to a legendary prophecy. Destroying the dark lord before he reclaims the kingdoms of the living is her inherited mission. Killing Bingmei before she fulfills it is Echion’s. Thrust unprepared into the role of savior, urged on by a renegade prince, and possessing a magic that is her destiny, Bingmei knows what she must do. But what must she risk to honor her ancestors? Bingmei’s fateful choice is one that neither her friends nor her enemies can foretell, as Echion’s dark war for control unfolds.

    Together, they are able to bring art to life and enter paintings at will. Their extraordinary abilities are highly sought after, particularly by a secret group who want to access the terrors called Hollow Earth. All the demons, devils, and evil creatures ever imagined are trapped for eternity in the world of Hollow Earth—trapped unless special powers release them.The twins flee from London to a remote island off the west coast of Scotland in hopes of escaping their pursuers and gaining the protection of their grandfather, who has powers of his own. But the villains will stop at nothing to find Hollow Earth and harness the powers within. With so much at stake, nowhere is safe—and survival might be a fantasy.

    Along the way they have found crewmates and friends, and even a disarming thief who could come to mean much more to Nix.But the end to it all looms closer every day.Her father is obsessed with obtaining the one map, 1868 Honolulu, that could take him back to his lost love, Nix’s mother. Even though getting it—and going there—could erase Nix’s very existence.For the first time, Nix is entering unknown waters.She could find herself, find her family, find her own fantastical ability, her own epic love.Or she could disappear.

    In the ocean of the modern day, John rescues a shipwrecked young girl his own age, Serena, and promises to help.But returning Serena to her own time means traveling to the one place where the ship is in most danger of destruction. The all-powerful Dahlberg Corporation has an ambitious leader with plans far greater and more terrible than anyone has realized, and he is hot on their trail. For only John, Serena, and the crew know Dahlberg's true intentions, and only they have the power to stop him from bending the world to his will.