Science Fiction Time Travel

Where did the tree house come from? Before Jack and Annie can find out, the mysterious tree house whisks them back to the prehistoric past. Now they have to figure out how to get home. Can they do it before dark, or will they become a dinosaur's dinner?

Settle down with a mince pie and a small sherry and prepare for an unlikely combination of Flying Auctions, Fabergé eggs, duped Time Police officers, the Parish Council, a TWOCed Bentley (no, not that one), legendary swords and a belligerent ram. Will it be peace and goodwill to all men? Well, we all know the answer to that....

Matt found a way to erase his past regrets. He was an average guy who was pissing and moaning his way toward retirement. Like many people before him, he often wished things had gone differently for him. Be careful what you wish for!

Equipped with the entirety of human knowledge, a sentient ship is launched on a last-ditch journey to find a new home for civilization. Trillions of miles. Tens of thousands of years. In the space between, the AI has plenty of time to think about life, the vastness of the universe, everything it was meant to do, and—with a perspective created but not limited by humans—what it should do.

For Etienne and me, our love has always left a trace. It reigns over kingdoms, and rules over time. With Etienne now in the present day, the echoes of time grow louder. We must face the answers we seek to set things right. However, we must be incredibly careful. One false move, and everything we love will be destroyed. And this time could be the end of our surviving trace.

Guess who may just need to end time? You got it: Jon Ryan may be forced to cancel, terminate, and definitively end time itself—everywhere. Why is he straying in that direction? Well, he wanted to fix the timeline. After the Clan no-timed Earth and Jon resurrected it, he was stressed that the new future would void out the very future that gave us our hero himself. So, Jon did his best to fix the timeline according to how he thought it should be.

When Raisa Hopeland, determined to win her race to become the next electromancer of London, bumps into Amon Brightbourne―tweed-suited, otherworldly, guided by the Grace―in the middle of a London riot, she sets in motion a series of events which will span decades, continents, and a series of events which will change the world.

With the defeat of the Overtakers behind them, the five teenagers known as the Kingdom Keepers should be celebrating. By all accounts they saved Disneyland from certain destruction. Why then did their mentor leave one last puzzle for them to decipher? The Keepers must solve a puzzle of the past, or be crushed under an evil that makes the Overtakers seem like gentle souls.

Peter, Mary, and Hank journey to the pyramid-studded desert of ancient Egypt. When the trio become friends with Pharaoh's daughter, they witness first-hand as Moses petitions Pharaoh for the Israelites' freedom. Plagues wreak havoc as the group races to decode the scroll, gets chased by a panther, and battles Pharaoh's cunning advisor, the Great Magician.

Archibald is a risk-averse boy with quirks that earn him plenty of eye-rolls, especially from his older sister, Hailee. Things get worse when his parents move the family from London to his grandmother’s creepy manor in the English countryside. Now he has to deal with hairless dolls in the library, weird stone creatures on the roof, and a spooky forest at the edge of the backyard. But these turn out to be the least of Archibald's problems.

Forget minor hazards like nuclear bombs. The discovery of time travel means that everything we know, anyone we know, might not only vanish, but never even have existed. Against that possibility stand the men and women of the Time Patrol, dedicated to preserving the history they know and protecting the future from fanatics, terrorists, and would-be dictators who would remold the shape of reality to suit their own purposes.

After traveling through history multiple times and finding out his original identity, Jonah thought he'd fixed everything. But some of his actions left unexpected consequences. His parents - and many other adults - are still stuck as teenagers. And now Jonah has a new sibling, an identical twin brother named Jordan. As odd as all this is for Jonah, it's beyond confusing for Jordan. How does everyone in his family have memories of Jonah when he doesn't?

Malice Morbid Malign isn't like the rest of her family. But when her younger sister, Antipathy-Rose, finds a sphere of solid amber in one of the forbidden swag rooms at Malignant House, and bites right through it, she unwittingly unleashes a world of trouble. Trapped within the amber sphere is Maniacal Malign’s time-stopping pocket watch. Maniacal Malign had been in exile for several centuries, but the moment Antipathy-Rose’s gnashers crack the amber, he is summoned back to monstrous action. Malice, Uncle Vex and Seth find themselves on a time-sensitive mission.

When the opportunity of a lifetime ends in disaster, Amelia Cabrera doesn’t know if she can stomach any more disappointment. Her mother offers her a consolation trip to a quirky B&B, where she expects a quiet weekend to mourn the setback in her chef career. Until the man she’s always secretly crushed on shows up at the door—and he might even think they are supposed to be going on a date.

A few years earlier, the evil clan destroyed Earth. Jon and his team labored mightily to resurrect our lost civilization. But once they achieved that impossibility, Jon grew more and more obsessed with restoring Earth's original time line. He wants to give rebirth to his original life story, his history. In spite of pleas to the contrary by his friends, he was hellbent on achieving his unproven goal.

No one would ever envy Robert Burke. He is homeless, destitute, and forced to sleep in the cold, night after night. And yet Robert has the love and devotion of his small dog, Scruffy. That is enough to get him through. When Robert meets Scott McKenzie, it changes not this life, but possible future lives. Because Scott takes Robert to Middle Falls, Oregon. Miracles happen in Middle Falls.

A young girl, Rella Deveraux-PenSword, is called to protect and defend Hleo: an enchanted refuge for the children of Earth One. Rella must stop a plague of Shadowsplitters, the miscreations of the plagiarist Archimago, from destroying the Wondercurrent: a source of life and hope for all the children under Hleo's protection. Rella's parents, Winter and Julian, are part of a secret alliance of Storykeepers. First, her mother disappears. Then, a few years later, when her father goes missing, Rella is forced to flee her home in the rural village of Ensea.

Dan Gutman has won a wide and growing audience among young readers, who have eagerly devoured all the books in the sports-loving author’s Baseball Card Adventure series. In Ted & Me, time-traveling Stosh has finally been found out by the FBI. Tasked with using his Ted Williams card to go back to 1941 to prevent the attack on Pearl Harbor, Stosh also seizes on the chance to help the Splendid Splinter add even more home runs to his already legendary tally.

In this companion volume to A Wrinkle in Time (Newbery Award winner) and A Wind in the Door fifteen-year-old Charles Wallace and the unicorn Gaudior undertake a perilous journey through time in a desperate attempt to stop the destruction of the world by the mad dictator Madog Branzillo. They are not alone in their quest. Charles Wallace's sister, Meg - grown and expecting her first child, but still able to enter her brother's thoughts and emotions by "kything" - goes with him in spirit.

Yesterday’s mystery requires the detective of tomorrow. Fans of hard-boiled, tough-as-nails detectives have a new hero in this action-packed three-book mystery collection from Nathan Van Coops. Snappy dialogue, mind-bending time travel, and laugh-out-loud humor will keep you up late solving this series of electrifying whodunits.