Science Fiction Time Travel

On Vega III, where the jaded inhabitants pursue lives of malicious intrigue and decadent pleasure, Lady Nimisha Boynton-Rondymense has always been an anomaly. Disdainful of the frivolity of her fellows, she prefers the exciting and challenging world of her father, Lord Tionel, owner and principal starship designer of the famous Rondymense shipyards.

When an unconventional offshoot of the US military trains an artificial intelligence in the dark arts that humanity calls “black magic,” it learns how to hack the fabric of reality itself. It can teleport matter. It can confer immunity to bullets. And it decides that obscure Silicon Valley middle manager Adrian Ross is the primary threat to its existence. Soon Adrian is on the run, wanted by every authority, with no idea how or why he could be a threat. But when he investigates the AI and its creators, he discovers his problems are even stranger than they seem.

On their way to fight in the Mexican-American War, a group of American soldiers are swept away to a strange and deadly alternate Earth in this thrilling new adventure set in the world of the New York Times best-selling Destroyermen series.

Nobody remembers how the Causality War started. Really, there's no-one to remember and nothing for them to remember if there were; that's sort of the point. We were time warriors and we broke time. I was the one who ended it. Ended the fighting, tidied up the damage as much as I could. Then I came here, to the end of it all, and gave myself a mission: to never let it happen again.

Up-timer Morris Roth and his Grand Army of the Sunrise stand at a crossroads. Military success against the Polish-Lithuanian magnates has all but guaranteed a continued push east into Ruthenian lands. There, Roth hopes to further his Anaconda Project so that tens of thousands of Jews are not slaughtered in what’s to become known as the Chmielnicki Pogrom of 1648.

There I was, surrounded by beautiful college girls and tribeswomen, enjoying the fruits of my labor and the occasional consensual spanking, when a volcano threatened a different kind of eruption. A more dangerous one. Needless to say, it's up to me, the professor with an armful of gingers, to keep everybody safe. Because if we don't get off this island, it'll be an extinction-level event. That's it. Those are all the spoilers you're getting.

In the final throes of the generations-long war with the alien Felen, smuggler Jereth Keeven's junk freighter breaks down in a strange rift in deep space, with little chance of rescue—until they encounter a science vessel that claims to be from 152 years in the future. Engineer Uma Ozakka has always been fascinated with the past, especially the desperate peace mission that ended the war with the Felen and ushered in a new age of collaboration—a mission Keeven's first mate, Leesongronski, is supposed to be leading right now.

In The Knight at Dawn, Jack and Annie find peacocks for dinner and boys in skirts when the Magic Tree House transports them back to the Middle Ages for another wild adventure. In this second book in the series, inquisitive, notebook-carrying Jack and his animal-charming younger sister, Annie, find themselves in the middle of an enormous castle. They can hear the beginnings of a feast under way in the Great Hall.

Anakin Skywalker and Obi-Wan Kenobi find themselves caught on a hostile planet, and facing their savviest enemy yet, a master of disguise named Granta Omega.

The struggle for survival sharpens as resources dwindle, technology fails, and the grim reality of life on Donovan unfolds. Supervisor Kalico Aguila has bet everything on a fragile settlement far south of Port Authority. There, she has carved a farm and mine out of wilderness. But Donovan is closing in. When conditions couldn't get worse, a murderous peril descends out of Donovan's sky - one that will leave Kalico bleeding and shattered.

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.

The dying Empire's most cunning and ruthless warlord, Grand Admiral Thrawn, has taken command of the remnants of the Imperial fleet and launched a massive campaign aimed at the New Republic's destruction. With the aid of unimaginable weapons long hidden away by the Emperor on a backwater planet, Thrawn plans to turn the tide of battle, overwhelm the New Republic, and impose his iron rule throughout the galaxy.

Matt Reddy and his sailors have fought, bled, and died for their Lemurian friends and other allies from across time, but their enemies are still operational. In Africa, the Grik General Esshk has escaped defeat to build a new army and new weapons, and is desperate enough to use them to destroy the world if he can't have it.

After experiencing a future where all of humanity’s planets and colonies had been purged, Eric refused to fall. And so, the Entity chose him to be humanity's last hope—to be Reborn.... The Reborn are galactic boogiemen. Myths and legends used to terrify children and curb the aggression of advanced alien civilizations. They are usually granted boons and abilities able to grow powerful enough to destroy star systems, making them the number one target of every alien race out there.

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.

The stakes are high - both for the past and the future. The finale of The Return series leaves the Kingdom Keepers with unimaginable choices to make.

It's Christmas Eve at St Mary's. And all through the house. Nothing is stirring.... Except for Max, Peterson, and Markham, sneaking out at midnight for an assignment that is very definitely off the books. It was ten years ago tonight that senior historians Bashford and Grey went missing in 12th century Jerusalem. So how did they end up in AD 60 Roman Colchester? Max has a theory. Peterson has a plan. Markham has bacon sandwiches. Colchester has Boudicca and her bloodthirsty Iceni hordes.

Matthew Dunsratty is trapped in a nightmare of his own creation. Worse yet, he can never escape from it. All he wanted to do was add a little spice to his dull life. That's why he had devised a way to place new ideas in the minds of younger versions of himself. "Just a little fun." Ultimately, that joyriding-in-time led to him accidentally murdering a young classmate. That heinous act landed Matt in the state mental hospital with no chance of ever leaving it alive.

Death has a funny way of finding Lynette Heversham. After three villainous lifetimes—marked by pain, betrayal, and increasingly violent demises—Lynette still has no idea why she's been cursed with being reborn again and again. When she awakens as her younger self for the fourth time, she quickly realizes this life is her last chance to get it right.

The Carthaginians are marching to destroy Rome and it is up to Ky, a test pilot from the future thrown into an alternate past, to keep the once mighty Roman Empire from being destroyed. As Ky gathers Roman and Caledonian forces together to form a new Britannic Empire to defend against the Carthaginian host, he must also struggle to contend with a malfunctioning AI implanted in his brain that is slowly gaining sentience.