Science Fiction Time Travel

When you discover the world is a computer program, and you figure out that by altering the code you can time travel and perform acts that seem like magic, what can possibly go wrong? Pretty much everything. Just ask Brit, who has jumped around in time with such abandon that she has to coexist with multiple versions of herself. Now, Brit the Elder finds that her memories don't match Brit the Younger's.

When Rigg and his friends crossed the Wall between the only world they knew and a world they could not imagine, he hoped he was leading them to safety. But the dangers in this new wallfold are more difficult to see. Rigg, Umbo, and Param know that they cannot trust the expendable, Vadesh - a machine shaped like a human, created to deceive - but they are no longer certain that they can even trust one another. But they will have little choice.

On a family trip to Paris, Greg Rich's parents disappear. They're not just missing from the city - they're missing from the century. So, Greg does what any other 14-year-old would do: He travels through time to rescue them. Greg soon finds out that his family history is tied to the legendary Three Musketeers. But when he meets them, they're his age, and they'll only live long enough to become true heroes if he can save them.

Tristan Lyons, Mel Stokes, and their fellow outcasts from the Department of Diachronic Operations (D.O.D.O.) fight to stop the powerful Irish witch Gráinne from using time travel to reverse the evolution of all modern technology. Chief amongst Gráinne’s plots: to encrypt cataclysmic spells into Shakespeare’s “cursed” play, Macbeth. When her fellow rogue agents fall victim to Gráinne’s schemes, Melisande Stokes is forced to send Tristan’s untested, wayward sister Robin back in time to 1606 London.

The Thornton car was washed down a creek during a flash flood near Independence, Missouri. Their only child, a seventeen year old daughter was still clinging to the top of the car when they last saw her. After an air, land, and water search for four days without a trace, the search was abandoned. Allie and Barry Thornton learn their missing daughter was transported back in time one hundred and fifty years to 1866. A research team at the most prestigious university in the country, offered them the opportunity to join her and her family. Do they dare take the risk? Can Barry survive what ...

President Maggie Lawson is thrust into an unprecedented crisis when an alien craft crash-lands near her hometown while she gives a local speech. As the Secret Service mobilizes and special forces race to secure the site, Lawson's worst fear comes true—her fifteen-year-old daughter has gone missing. When it becomes clear that her daughter has been abducted by the extraterrestrial visitors for reasons unknown, Lawson calls on Curt Holt, a notorious former Army military intelligence officer known for his ability to interpret and handle unexplained aerial phenomena.

The time loop is coming to an end. With limited restarts remaining, Zorian and his allies must redouble their efforts to discover how they can prevent the release of an ancient primordial being once the time loop expires and they are returned to the real world—where choices can’t be undone.

An engineer finds himself in an alternate reality, Cornwall, in the year 715 A.D. He awakens in the body of a young Baron. James Fletcher continues on his world conquest. He has realized that nothing short of world domination will allow him to live in peace. No matter how he expands the new neighbors will covet his goods and lands. Now it is Italy that is being conquered while James is doing a grand tour of all his territories. With heavier than aircraft it is smooth sailing, well almost.

The alien invasion was the least of anybody's problems. Out of the blue, a strange alien mothership appears in the sky. At first, it just hangs there, making no apparent attempts to communicate with the people of Earth. But pretty soon the White House is a hole in the ground, and glowing translucent spheres are abducting people from the streets. In order to avert further disaster, Satan, former King on Hell but now exiled on Earth, teams up with his best buddy and travel back to Hell to get a piece of tech that could send the aliens packing. But little do they know that the aliens, the ...

In 1967, four female scientists worked together to build the world’s first time machine. But just as they are about to debut their creation, one of them suffers a breakdown, putting the whole project - and future of time travel - in jeopardy. To protect their invention, one member is exiled from the team - erasing her contributions from history. Fifty years later, time travel is a big business. Twenty-something Ruby Rebello knows her beloved grandmother Granny Bee was one of the pioneers, though no one will tell her more.

A mix of psychological suspense and science fiction, Echoes of Tomorrow explores the ethics of predictive technology, the limits of human agency, and the struggle to retain control over one's own destiny. As Olivia’s mind becomes increasingly entangled in the future, she must make a choice: trust the technology or embrace the uncertainty of life.

History happens all around you. And, occasionally, to you. I could have been a bomb-disposal expert, or a volunteer for the Mars mission, or a firefighter, something safe and sensible. But, no, I had to be an historian. It began well. A successful assignment to 17th century Cambridge to meet Isaac Newton, and another to witness the historic events at The Gates of Grief. So far so good.

Ryo was a chef, an extremely good one at that. Now he's back in time in an alternate dimension and the retainer of a Feudal Japanese Lord, in charge of his defense from an upcoming Mongol invasion. What is a Space Force Food Service Specialist supposed to do? Accompanied by an extremely advanced Artificial Intelligence, a medieval noble, and his samurai retainers, Ryo sets out to change the known world. At least this dimension's version of it!

Contains three complete, novel-length books in the Middle Falls Time Travel series: The Vigilante Life of Scott McKenzie, The Reset Life of Cassandra Collins, and The Tribulations of Ned Summers.

As humanity is taking its final breath, facing extinction from a myriad of monsters, the last three people on earth are creating a final chance for the hero to go back in time and stop the apocalypse. However, before the hero can enter the chronomancer portal to the past, she and the portal's creator are both killed, leaving only the weak assistant to carry on their dream of saving the world. Will Nick be able to right the wrongs done to him, and prepare the hero for the world to come?

Jason Thanou of the Temporal Regulatory Authority had about had it with nursemaiding parties of ivory-tower academics through Earth's blood-drenched history, keeping them alive as they sought evidence for their pet theories. Of course, when one of the ivory-tower academics looked like Doctor Deirdre Sadaka-Ramirez, one last expedition didn't look like such a bad idea after all...

The members of the Polaris Project knew what they were giving up when they volunteered to fly to the star named Angel-21, but the allure of being the first explorers to leave the Solar System far outweighed the risks. As it turned out, the most dangerous thing they faced wasn't the mission, it was the homecoming. Eight hundred years have passed, and Earth is nothing like they thought it would be.

An intelligent, fast-paced hard science fiction novel that spans the galaxy! Four friends find themselves lost in a far corner of the galaxy, separated from those they love by both time and distance. Heartbroken by the cruel twist of fate that has carried them there, they must use all their wits to merely stay alive. As they desperately search for a way back home and a means of salvation, they are forced to make painful choices. Meanwhile, those they have left behind are caught up in a deadly struggle against a malevolent artificial intelligence that threatens the survival of the whole ...

The Destiny’s Crucible series chronicles the incredible adventure of Joseph Colsco, a college student of no particular importance who is thrust into an unimaginable fate by an accident that couldn’t happen - but did. Cast naked on the planet Anyar, he forges a new life for himself and rises to prominence and responsibilities he would otherwise never have imagined. However, much is left undone and uncertain.

Tom Hazard has a dangerous secret. He may look like an ordinary 41-year-old, but owing to a rare condition, he's been alive for centuries. Tom has lived history - performing with Shakespeare, exploring the high seas with Captain Cook, and sharing cocktails with Fitzgerald. Now, he just wants an ordinary life. So Tom moves back his to London, his old home, to become a high school history teacher - the perfect job for someone who has witnessed the city's history first hand. Better yet, a captivating French teacher at his school seems fascinated by him.