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!

    Her father decides it's time for a trip to France to search for her. While visiting Notre Dame, Mira touches a gargoyle and is whirled into the past. There she meets the famous painter Degas and catches a brief, shocking glimpse of her mother. Mira begins to suspect that her mom didn't run out on them but is a prisoner of the past. Can one family on an incredible worldwide adventure stop a plot in time?

    The warrior K'da species are symbiotes, can only live six hours without their humanoid host. Draycos 30s is the sole survivor of the three ships destroyed scouting for their refugees, and Jack is the only possible choice. They may be an odd couple, but together they're more than the sum of their parts. They are destined to travel far and wide, facing many perils - human, alien, and other, as they seek justice and safety - Jack for himself, and Draycos for his people.

    From whom? Well the CIA, naturally. But also corporate agents #5, #29, and # 207, plus two international superspies -- one of whom happens to be a chimpanzee. They all want Dr. Cheeseman and his late wife's greatest invention-a machine with unspeakable powers-OK, I'll say it. It's a time machine. But it's not working right yet, so put all ideas of time travel out of your head.Instead, please enjoy this high stakes, high action, hijinx-filled chase. And the bizarre characters our Cheeseman friends will meet as they protect not just their parents' invention, but their mother's sacred memory. It's an adventure novel like no other.Oh yeah, and did we mention the entertaining, plot-exposition filled, unsolicited advice you'll receive along the way? So you didn't ask for it? Yeah, that's why it's unsolicited.Unsolicited Advice #1: Read this book.

    After their parents are lost in an accident, thirteen-year old twins Grace and Marty are whisked away to live with their Uncle Wolfe-an uncle that they didn't even know they had! The intimidating Uncle Wolfe is an anthropologist who has dedicated his life to finding cryptids, mysterious creatures believed to be long extinct.

    When diphtheria strikes the village and the children of Clifton start dying, Jessie's mother sends her on a dangerous mission to bring back help. But beyond the walls of Clifton, Jessie discovers a world even more alien and threatening than she could have imagined, and soon she finds her own life in jeopardy. Can she get help before the children of Clifton, and Jessie herself, run out of time?

    But when he runs into his eighteen-year-old guardian, Riley Pendare, he learns that he's really in the eighth day—an extra day sandwiched between Wednesday and Thursday. Some people—like Jax and Riley—are Transitioners, able to live in all eight days, while others, including Evangeline, the elusive teenage girl who's been hiding in the house next door, exist only on this special day.And there's a reason Evangeline's hiding. She is a descendant of the powerful wizard Merlin, and there is a group of people who wish to use her in order to destroy the normal seven-day world and all who live in it. Torn between protecting his new friend and saving the entire human race from complete destruction, Jax is faced with an impossible choice. Even with an eighth day, time is running out.

    Twin siblings Abby and Derick Cragbridge are excited as new students to use their famed grandfather’s inventions that make Cragbridge Hall so incredible. But when their grandfather and parents go missing, the twins begin following a trail of clues left by their grandfather. They must find out where their family is, learn who they can trust, and discover what secrets are hidden within Cragbridge Hall.Abby and Derick soon realize they are caught in a race with a fierce adversary to discover their grandfather’s greatest secret–a dangerous discovery that could alter both history and reality.

    Sarah, an Upstate New York girls’ hockey team stand-out... Ben, a horse lover from the Pacific Northwest...And Cat, an artistic bird watcher from California. The four have nothing in common except for the head injuries that land them in an elite brain-science center in the Florida Everglades. It’s known as the best in the world, but as days pass, the kids begin to suspect that they are subjects in an experiment that goes far beyond treating concussions….and threatens their very identities. They’ll have to overcome their injuries – and their differences – to escape, or risk losing themselves forever.

    It worked…but now the storerooms are almost out of food, crops are blighted, corruption is spreading through the city and worst of all—the lights are failing. Soon Ember could be engulfed by darkness…But when two children, Lina and Doon, discover fragments of an ancient parchment, they begin to wonder if there could be a way out of Ember. Can they decipher the words from long ago and find a new future for everyone? Will the people of Ember listen to them?

    She’s alone—left behind in a town that has been mysteriously evacuated and abandoned.With no one to rely on, no power, and no working phone lines or internet access, Maddie slowly learns to survive on her own. Her only companions are a Rottweiler named George and all the books she can read. After a rough start, Maddie learns to trust her own ingenuity and invents clever ways to survive in a place that has been deserted and forgotten.As months pass, she escapes natural disasters, looters, and wild animals. But Maddie’s most formidable enemy is the crushing loneliness she faces every day. Can Maddie’s stubborn will to survive carry her through the most frightening experience of her life?

    This world is on the brink of war, and Gregor's arrival is no accident. A prophecy foretells that Gregor has a role to play in the Underland's uncertain future. Gregor wants no part of it -- until he realizes it's the only way to solve the mystery of his father's disappearance. Reluctantly, Gregor embarks on a dangerous adventure that will change both him and the Underland forever.

    Eli Frieden has never left Serenity, New Mexico...why would he ever want to? Then one day, he bikes to the edge of the city limits and something so crazy and unexpected happens, it changes everything.Eli convinces his friends to help him investigate further, and soon it becomes clear that nothing is as it seems in Serenity. The clues mount to reveal a shocking discovery, connecting their ideal crime-free community to some of the greatest criminal masterminds ever known.The kids realize they can trust no one—least of all their own parents.

    With the help of her best friend, Charlie, and his grandpa Josh, Margaret goes back to a time when Judge Biggs was a young boy and tries to prevent the chain of events that transformed him into a corrupt, jaded man.

    When Nick opens the door to his attic room, he's hit in the head by a toaster. That's just the beginning of his weird experiences with the old junk stored up there. After getting rid of the odd antiques in a garage sale, Nick befriends some local kids-Mitch, Caitlin, and Vincent-and they discover that all of the objects have extraordinary properties. What's more, Nick figures out that the attic is a strange magnetic vortex, which attracts all sorts of trouble. It's as if the attic itself has an intelligence . . . and a purpose.Ultimately Nick learns that the genius Nikola Tesla placed the items-his last inventions-in the attic as part of a larger plan that he mathematically predicted. Nick and his new friends must retrieve everything that was sold at the garage sale and keep it safe. But the task is fraught with peril-in addition to the dangers inherent in Tesla's mysterious and powerful creations, a secret society of physicists, the Accelerati, is determined to stop Nick and alter destiny to achieve its own devious ends. It's a lot for a guy to handle, especially when he'd much rather fly under the radar as the new kid in town.