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What if you could actually be watching at a time in history when an important invention or discovery was being made? The Discovery Machine is based on that premise and follows the mind-bending experiences of two very creative ninth graders. They accidentally discover a way to travel back in time to the exact moment of discovery of a famous invention or idea.

After a turbulent start to his senior year, Chase expects his life to return to normal now that Ellie Williams is back. But when a Sniffer's trap leads him on a journey spanning two worlds, he soon realizes things aren't always what they seem. Will his calling as Keeper require a sacrifice he isn't willing to make?

Entering high school at Foxworth Academy - a school for the ultra-smart, athletic, and wealthy - Brett Logan is your typical shy freshman. But that is about to change. For years rumors have circled about what goes on in Mr. Martin's ultra-secretive history class, and past students have all kept quiet, leaving Brett to wonder what really goes on. Until now.

A chance encounter during a costume ball at a historic tavern sends high school senior Lauren Harper back in time to early Virginia. Now she's experiencing the actual events of the "Legend of the Female Stranger" ghost story she's attempted to avoid growing up in Old Town Alexandria. Can she solve the mystery of this ghost, find her way back home, and deal with her own emotions when she falls in love with a guy who lived 200 years before her?

Richie Preston is 27 years old and still lives in his parents' house, still works at a dead end job, lost his great love, still hasn't really begun his life. One day the fates smile on him and give him the opportunity to start over, to go back to being 17 and about to start his senior year of high school, only this time with all the memories of what he did wrong the first time. All he has to do is not interfere with anyone else's life. It sounds like a great deal, but living up to his end of the bargain turns out to be harder than Richie ever imagined.

Charlie's the kind of boy that no one notices. Hell, his own mother can't remember his name. So when a mysterious clockwork man tries to kill him in modern day Philadelphia, and they tumble through a hole into 1725 London, Charlie realizes even the laws of time don't take him seriously. Still, this isn't all bad. Who needs school when you can learn about history first hand, like from Ben Franklin himself. And there's this girl... Yvaine... another time traveler. All good. Except for the rules: boys only travel into the past and girls only into the future.

Sarah Larker is dying. And there's nothing modern medicine or science can do to help her predicament. Sarah knows Victor has been desperately searching for a cure without success. Without a cure, she will never be able to carry her precious baby to full term. She is desperate to give her son a chance at life, but every day is a struggle to live. Victor was forced to leave the only world he ever knew and loved to be with Sarah in California so they could raise their son together.

Kelsee Lewis has a new school, a prima donna best friend, and one week to write a hit play. Throw in a self-obsessed mom and an absent executive dad, and it's no wonder she has panic attacks - complete with time-warp special effects. When Kelsee meets comic book maven Quinn, she realizes the attacks give her the ability to rewind time. Replaying life seems like the best way to erase mistakes. But will second chances leave Kelsee flailing in the orchestra pit alone?

Rachel Crane was just six when her older sister, Brooke, died in a car accident 10 years ago. Rachel often wishes that Brooke was still alive... could it actually come true? Just before she's supposed to leave home for the summer, Rachel runs up to the attic - a place she often goes for some down time. A mysterious antique musical clockwatch literally appears at her feet. She picks it up, feels slightly dizzy, and finds herself transported back in time to the day her sister died.

The Secret Clock Society has infiltrated every aspect of the government. You can't hide from them, you can't out run them - the only choice is to surrender or die fighting. Well, Summer's found her voice and her confidence. She'll fight if necessary, but for now she's on the run. And the only place that can offer her refuge is the one city that's been devastated with disease and death. Full of savages, Forsaken Harbor holds her life on the edge of a knife. Is there still hope to be found here after all? Or will survival mean savagery?

Liam O'Connor should have died at sea in 1912. Maddy Carter should have died on a plane in 2010. Sal Vikram should have died in a fire in 2026. But all three have been given a second chance - to work for an agency that no one knows exists. Its purpose: to prevent time travel destroying history...

When Kate Pierce-Keller’s grandmother gives her a strange blue medallion and speaks of time travel, sixteen-year-old Kate assumes the old woman is delusional. But it all becomes horrifyingly real when a murder in the past destroys the foundation of Kate’s present-day life. Suddenly, that medallion is the only thing protecting Kate from blinking out of existence. Kate learns that the 1893 killing is part of something much more sinister, and her genetic ability to time travel makes Kate the only one who can fix the future.

The exciting, action-packed finale to The Rift Uprising trilogy that rivals the thrills and action of The Hunger Games and Red Rising. Ryn Whittaker started an uprising. Now she has to end it. Not long ago, Ryn knew what her future would be – as a Citadel, it was her job to protect her version...

“If you knew you had to do the right thing, but that something bad may happen to you because of it, would you do it anyway?” This hard-hitting, emotional, YA story of pain and love; right and wrong; and life and death is a masterful mix of suspense, romance, the paranormal, and the...

In one moment Nicole Burns's life changes forever. The sound of gunfire at an Anne Frank exhibit, the panic, the crowd, and Nicole is no longer Nicole. Whiplashed through time and space, she wakes to find herself a privileged Jewish girl living in Nazi-occupied Paris during World War II.

A simple blink is all it takes to yank Pru from the car with her dad into a world of hurt. She awakens in 2305 to find herself pinned under what's left of CHRONOS headquarters, thanks to a recent terrorist attack. Their prime suspect? Her mother, Katherine Shaw. And everyone wants to know how Pru got her hands on a CHRONOS key.

Fifteen-year-old Jack Bishop has mad skills with cars and engines, but knows he'll never get a driver's license because of his epilepsy. Agreeing to participate in an experimental clinical trial to find new treatments for his disease, he finds himself in a completely different body--that of a girl his age, Jacqueline, who defies the expectations of her era. Since his seizures usually give him spazzed out visions, Jack presumes this is a hallucination.

Kiernan Dunne abandoned his family ties to help Kate fight the Cyrists, and he's never regretted that for one moment. But he doesn't understand why Kate can't remember that night in 1893 Chicago, when she turned back to face the killer chasing them through the smoky corridors of the World's Fair Hotel. Kate placed the CHRONOS key around his neck and made his eight-year-old self promise to wear it always, and that's a promise Kiernan has never broken.

Young FBI agent Chevie Savano arrives back in modern-day London after a time-trip to the Victorian age, to find the present very different from the one she left. Europe is being run by a Facsist movement known as the Boxites, who control their territory through intimidation and terror. Chevie's...

In this spellbinding sequel to the New York Times bestselling The Last Magician, Esta and Harte set off on a cross-country chase through time to steal back the elemental stones they need to save the future of magic. Hunt the Stones. Beware the Thief. Avenge the Past. Esta’s parents were...

6 Starred Reviews and a New York Public Library Best Book of 2017! New York Times bestselling author Jodi Lynn Anderson's epic tale—told through three unforgettable points of view—is a masterful exploration of how love, determination, and hope can change a person's fate. 2065: Adri has been...

With a scarlet fever epidemic raging throughout London, a rogue baron on the loose, a new baby keeping him up at night, and a kingdom to run, the last thing David has time for is a trip to the twenty-first century. But as he should know by now, time waits for no man, not even the King of England ...

An instant New York Times bestseller! “Will keep you guessing until the last page.” —Cinda Williams Chima, New York Times bestselling author A girl travels back in time to find a mysterious book that could save her future in Lisa Maxwell’s “splendid series opener” (Kirkus Reviews)...

When fragile 16-year-old Hope Walton loses her mom to an earthquake overseas, her secluded world crumbles. Agreeing to spend the summer in Scotland, Hope discovers that her mother was more than a brilliant academic but also a member of a secret society of time travelers. And she's alive, though currently trapped in the 12th century, during the age of Eleanor of Aquitaine. Hope has 77 hours to rescue her mother and get back to their own time.

It's 1986 and 16-year-old Zoe Brenner's world revolves around Depeche Mode, Judd Nelson, exercise-obsessed parents, and her best friend Jonah. Then one day, in a freak Fun-Dip choking accident, Zoe falls unconscious, and awakes in the year 2016. So much has changed, and Zoe needs Jonah to help her make sense of it all. But in this life, Zoe is the most popular girl in school, and she soon realizes this Zoe doesn't associate with nerds like Jonah.

It's the year 2069 and even though 18-year-old Bianca Butterman is heir to the family biz, she may never see the day her time-craft license becomes official. When a government agent starts nosing around the operation, Butterman Travel, Inc. gets stuck with a full audit-part of a government take-over scheme to shut down all private time travel agencies.

A boy from the past. A girl from the future. Their love could be forever, but their time is running out.... Madeline falls in love with Samuel when she accidentally time travels hundreds of years into the past to a war between the colonists and Native Americans. Their relationship is forbidden. But Madeline's travels to the past not only to fall in love, but also to claim her birth right as a Messenger, a soul who can slip through time's fabric, delivering messages that change one life, or save many.

Quinn Robbins has just returned from spending ten days in Eirentheos, a world she had never known existed. Trying to settle back into her familiar life and establish a relationship with her new boyfriend, Zander, is more of a challenge than she ever dreamed it would be. Things are just beginning to feel normal again when Thomas shows up in her world, and invites her back to Eirentheos for a royal wedding. She's excited at the chance to reconnect with the people and places she had begun to fall in love with.

Casey Donovan has issues: hair, height, and uncontrollable trips to the 19th century! And now this - she's accidentally taken Nate Mackenzie, the cutest boy in the school, back in time. Awkward.

For the first time in her life, Hope Walton has friends...and a (maybe) boyfriend. She's a Viator, a member of a long line of time-traveling ancestors. When the Viators learn of a plan to steal a dangerous device from the inventor Nikola Tesla, only a race into the past can save the natural timeline from utter destruction. Navigating the glitterati of the Gilded Age in 1895 New York City, Hope and her crew will discover that high society can be as deadly as it is beautiful.