Science Fiction Time Travel

Having bested the Olympians and fought an Aesir Valkyrie to a standstill, David Montague must now contend with the greatest threat to humanity yet: the Frost Giants, the Jotuns.

Britannia is finally free from Carthaginian rule. Now, it is up to Ky, a test pilot from the far future and current Consul of the new Britannic Empire, to take the fight to the Carthaginian Empire. The continent, with its vast resources and manpower, awaits. However, it takes more than new weapons to turn an ancient army based around heavy infantry into one out of the Napoleonic era. New weapons, new tools, and new tactics are ready to take Britannia into the industrial revolution if only they can survive long enough to master them.

After surviving a fire that almost killed her, Kate worked hard to rebuild her life post-amputation. She knows her own strength. In life and in work, she never backs down from a challenge. But when she travels into the past to be with her sister, she meets a man who forces her to face truths about herself she'd rather avoid - that when it comes to love, nothing terrifies her more.

Sam watches the demonic forces of darkness as they engulf and destroy the land of Westria. The final battle is over. Or so Sam thinks. In the last moments before the world’s end, Sam is given a second shot to save everything he holds dear. He’ll be sent back in time. Reincarnated into his younger self and armed with knowledge of the future, Sam will have the power to undo past mistakes and give the people of Westria a fighting chance against the impending apocalypse.

Colton Beck has a new lease on life. Their alliance is confident they can find their enemy in the Alruna system, and it’s all hands on deck. After the revelation of his origins from the mysterious woman on Dicore, Colton is at odds with where his loyalties stand. The truth behind Indie Hart’s dedication to the Angor is revealed, making Colton doubt her motives as well as the Angor’s. When Earth is threatened, it’ll take a lot more than one man to save the planet. All pieces come together for a cataclysmic resolution, but who can Colton truly trust?

You know the future that people in the 1950s imagined we'd have? Well, it happened. In Tom Barren's 2016, humanity thrives in a techno-utopian paradise of flying cars, moving sidewalks, and moon bases, where avocados never go bad and punk rock never existed...because it wasn't necessary. Except Tom just can't seem to find his place in this dazzling, idealistic world, and that's before his life gets turned upside down.

Joseph Colsco has survived what many would not have - cast naked on an alien planet amidst humans speaking an unknown language and with a different culture and history. Now, known to the people of Caedellium as Yozef Kolsko, he has risen out of despair to prominence and finds himself a central figure in the culmination of a struggle against an imperialist power bent on subjugation. The clans of the Island of Caedellium must gird themselves for what is to come.

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.

From the outside, Rebecca Wright had an enviable life, and she enjoyed that envy. She had a beautiful house, handsome husband, and a no-limit credit card. What she didn't have was empathy. But, it's never too late in Middle Falls. A lesson that isn't learned in one lifetime can be learned in the next, or the next. Rebecca may need every chance she can get.

Kenna McMillan would do anything for her grandchildren. She would even accompany one of them hundreds of years into the future for a week of Christmas celebrations with the old witch Morna, just to make him smile. But unexpected guests at the inn upend all of their holiday plans. As she learns more about her new acquaintance, she starts to wonder if her week away might take a romantic turn....

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.

Once, Esta believed that she could change the fate of magic. She traveled to the past and stopped the Magician from destroying a mystical book that held the key to freeing her people from the Brink, an energy barrier that traps all Mageus who cross it. But the Book was more than she bargained for. So was the Magician she was tasked to steal it from. Hunted by an ancient evil, Esta and Harte have raced through time and across a continent to track down the powerful artifacts they need to bind the Book’s devastating power.

Arlan can go back in time by one minute, once per day. Fail a challenge? Say something dumb? He can get a redo as long as he acts fast. And every time he levels up, he can go back a little further. But, even with his growing power, Arlan has never been in more danger. He was left stranded in the middle of a monster-infested forest, nobody to rely on but himself as he fights to build strength. And his time magic wasn't given to him freely. He stole it. And its original owners would go to any lengths to take it back.

While in Japan researching her family’s history, a vicious typhoon sends Isla Mackenzie 128 years back in time, to the dawn of the Satsuma Rebellion. There she meets her ancestors, and a charismatic samurai, Kei, with whom she unexpectedly finds romance. But, unlike her Beloved, Isla knows about the looming Samurai rebellion—and Kai’s fate. Should she attempt to change history or somehow make her way back to the life she’d had before?

In Radiation Hazard, Kaem and company are commercially developing “stade”, a piece of space-time that’s in stasis. Its phenomenal properties allow it to reflect all radiation, so when a nearby nuclear reactor undergoes a meltdown, the first thought is that stade might be used to limit the radioactivity from the accident. In Halting the Reaper, Kaem has been treated with gene therapy for the anemias that have made him so weak. In combination with his extraordinary memory, his newfound physical fitness is letting him perform at a high level in a karate class.

Then: First Lieutenant Sean Elliott and nine other mixed-service US soldiers on a convoy in Afghanistan suddenly found themselves and their MRAP vehicle thrown back to Earth’s Paleolithic Age. And they were not alone. Displaced Romans, Neolithic Europeans, and more showed up as well. Some would be allies. Some became deadly foes. Now: Scientists from an almost unimaginably far future need the survivors’ advice and support to reconnoiter and ultimately recover other groups displaced in time.

One day, I’m just trying to make ends meet as a security guard at the Smithsonian Museum in Washington, DC. Then I happened upon a mysterious pocket watch and ended up in the year 1814. Time traveling takes a little getting used to, but it definitely helped that I found a pretty blonde woman to help me navigate 19th century DC. And when I discovered I could take things from the past and bring them to the future, a very lucrative idea took root in my brain…

On this occasion, Matilda, resentful of her constant setbacks, decides to change the course of history, then goes back to the time when she was still friends with Gellfara. To ensure her victory, Matilda made Gellfara disappear from history so that he could never create the Halloween warriors. Even so, Matilda achieves temporary victories that she cannot retain for long; but in the end, she ends up allying herself with the cult of the demons of the galaxies. Dorian grants a cult for herself.

The troubles for the embattled living planet Zonama Sekot have just begun. As Luke Skywalker and Jacen Solo negotiate its place in the galactic struggle against the Yuuzhan Vong, one of its organic ships is taken by the alien invaders. Scientist Nen Yim is ordered to use the captive to find weak spots in Zonama Sekot's technology. But what Nen Yim discovers about the planet and its mysteries shocks her to the core.

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.