Science Fiction Time Travel

Arriving home after a harrowing tour of duty on a hostile alien world, USC Sergeant Matt Reeves has just learned the enemy - an insidious humanoid species known as the Wraith - may be preparing to attack Earth again. With much of Earth still in ruins, and its military forces stretched beyond capacity fighting an interstellar war, there is no way mankind could survive another invasion. Enter The Emissary Program. Matt learns the USC have been secretly experimenting with time travel....

Cassandra Penelope Dankworth is a creature of habit. She likes what she likes (museums, jumpsuits, her boyfriend, Will) and strongly dislikes what she doesn't (mess, change, her boss drinking out of her mug). Her life runs in a pleasing, predictable order…until now. Then, something truly unexpected happens: Cassie discovers she can go back and change the past. One small rewind at a time, Cassie attempts to fix the life she accidentally obliterated, but soon she'll discover she's trying to fix all the wrong things.

A thrilling collection of romantic sci fi time travel adventures! THE WEB OF TENEBRAE KL-62 was created in a test tube--a perfect specimen of a human male. His body and life belong to science, but his mind is quiet, cold and sharp. On the way to be transferred to a remote space station, he learns he is about to be the subject of one last experiment--and it will prove fatal. So he chooses to break out of the only environment he has ever known, and crash-land on an abandoned prison planet called Tenebrae. THE PARADOX INITIATIVE A deafening crash comes from the back of Kestrel Evans' shop. A ...

Book 2. The X Factor finds the Apocalypse Babes friends, along with a few other lost L.A. stragglers, ensconced in a compound that may or may not be run by evil Soviet scientists. Whether it's due to Bolshevik beliefs or a manipulating girlfriend, nightmares are on the loose and they want what's left of Seffy after the zombie attack. To make matters worse, one of the stragglers develops an unwanted attraction for Sef, and insists it's more than just UST à la Mulder and Scully.

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.

In this breathtaking conclusion to the epic series, Ky, the pilot from the future, and Lucilla, Empress of Britannia, lead their empire to the climactic showdown against Carthage. The fight in conquered territories, rebelling against Carthaginian overlords, is over, and the battle on Carthage's home soil has begun. Britannia is stretched to the breaking point across a front as wide as the continent, as they begin the most difficult stage of the war. From blood-soaked battlefields to storm-tossed seas, their forces clash in desperate confrontations that will determine the fate of an empire.

Dr. Kelly Connolly is part of a top-secret team studying the most important find in human history - the Enigma Cube, an alien artifact of incomprehensible power. A cube whose technology can catapult civilization to dizzying heights - or destroy it entirely. After years of failed attempts to unlock the cube's secrets, all hell suddenly breaks loose. Kelly and a black-ops commando, Justin Boyd, are soon fighting against all odds to stay alive, and to keep the cube out of enemy hands.

Life is good for Team Weird, now heroes and fully fledged Time Police officers. Luke can't wait to bear arms. Jane has a date. And Matthew still hasn't had his hair cut. But Time waits for no one, and neither do criminal masterminds. A major threat to the Timeline is looming, one far deadlier than mere idiots who want to change history. And when a familiar face becomes a Very Important Lead, will conflicting family loyalties spell trouble for Team Weird?

Imagine a school in the year 2074 where students don't read history, but watch it happen around them; where running in gym class isn't around a track, but up a virtual mountain; and where learning about animals means becoming one through an avatar. Welcome to Cragbridge Hall, the most advanced and prestigious school in the world. Twins Abby and Derick Cragbridge are excited as new students to use their famed grandfather's inventions that make Cragbridge Hall so incredible.

The Silurian Period, approximately 420 million years ago. A time even before the dinosaurs. Evolution was just beginning to flex its muscles, and on land and in the sea, new creatures were evolving. In this strange world arrive a team of time travelling North Korean agents with one goal – change the past and alter the future. And if they are successful, the United States may never exist. Following them back in time are Alex Hunter and his team of elite HAWCs. And for Alex Hunter, this mission is personal.

They tried to kill or capture Yozef Kolsko. The possibility that Caedellium could have peaceful years going forward is refuted. The key is bringing down Narthon. But how? Caedellium is too small, despite innovations by Yozef Kolsko (Joseph Colsco) and Mark Kaldwel (Caldwell), humans cast away on the planet Anyar. Allies are needed. Campaigns to be planned. Risks to be taken. For Yozef Kolsko, it means assuming roles he never imagined or believed himself capable. Anyar will never be the same.

Hackett, in his trusty ship the Perseus, is not just a space traveller—beginning his travels with an expedition to Neptune and back—but, thanks to the time-dilation effect, a time traveller as well. His new mission will take him to Andromeda, to get a close-up look at the constellation which will eventually crash into the Milky Way, and give humanity a heads-up about the challenges which are coming. A mission which will take him five million years to complete. Not only is Hackett exploring unknown space, but he will return to a vastly different time.

Sixteen-year-old Trinity Foxx is used to her grandfather's crazy stories, so she doesn't believe that the latest treasure he brought home is a real dragon's egg. Not until their home is invaded by soldiers trying to steal it and a strange boy telling her the world as she knows it will be wiped out in a fiery dragon war—unless they work together to stop it. Meanwhile, there's a different voice whispering to Trinity, calling to her, telling her what to do…because the dragon in her egg is not ready to give up without a fight.

Sophie Arundel is stranded in history, stuck in a grand house in 1925 England. Thankfully, she has her faithful dog with her. Oh, and her fellow student Hugo, who is fit, privileged, and annoying.

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.

Rosie collapsed on the Seattle sidewalk, alone, cold, and drenched in seawater. Her head ached. Nothing seemed right. And her memory was little more than a fuzzy feeling of foreboding. She knows two things…One: She’s on an important mission. Two: Never mix with the locals. Injured and weary, Rosie knows that if she doesn’t get help, she may not be able to piece together the reason she's in 2018. Her gut says it’s vital. But if she trusts anyone, it could forever alter the timeline. When tough, street-smart Carlos takes her under his wing…the adventure begins.

Three full-length time travel books and a short story from the magical Middle Falls universe: The Stubborn Lives of Hart Tanner, The Alternative Lives of Aiden Anderson, The Heartfelt Life of Max Hartfield, and The Encore Lives of Effie Edenson.

Geneva Fielding is a researcher in the Archives of the Applied History department, prepping time travelers for their destinations. She loves the smell of old paper and chocolate croissants. One day, a Traveler fails an important test and cannot go. Instead of canceling the Trip, the dean appoints Geneva and her friend Peter Donatelli, a physicist, to take his place. They have three days to prepare to Travel to 1630s New England.

The end of the world has been avoided - for now. With Miri and her team of extracted heroes still on the run, Mother, the disgraced former head of the British Secret Service, has other ideas.... While Mother retreats to her bunker to plot her next move, Miri, Ben, Safa and Harry travel far into the future to ensure that they have prevented the apocalypse. But what they find just doesn't make sense. London in 2111 is on the brink of annihilation.

Somebody has to do it, and his mind is sufficiently perverse to qualify for the job. It's the age-old conundrum of time travel. It's the ultimate experiment. He packs a handgun before he steps into the time machine. What happens when a young man travels into the past to kill his own parents? Hello, father. Hello, mother. Good-bye, Thaddeus.