Science Fiction Time Travel

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....

On the primitive world Cull, a knight errant called Anderson hunts a dragon, not knowing that elsewhere is a resurrected brass killing machine, Mr Crane, assisting in a similar hunt. Learning that this old enemy still lives, agent Cormac pursues while scientist Mika begins discovering the horrifying truth about an ancient alien technology. Each day is a survival struggle for the people of Cull. Ferocious insectile monsters roam their planet as they try to escape to their forefathers' starship, still orbiting far above them.

Alexander X and his friends have had stadiums collapse on them and ancient teachers follow them; they have driven cars through buildings and had entire streets blown up around them. They've been chased, beaten, drugged, and nearly sliced in two by falling sheets of glass. And that...was just on Saturday. Now, they must do whatever it takes to escape Elam Khai and flee the country.

When a letter from her late grandmother sends Kara Forrester to Scotland to solve an ancient family mystery, she finds herself transported to 14th century Scotland. Arriving on the property of a dashing medieval laird, she must convince him that he can trust her - and work with her to prevent a looming tragedy. Taking on the mantle of leadership of Clan Macleay in his cousin's absence, Ronan struggles with the breadth of his new duties.

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.

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.

El 22 de noviembre de 1963 tres disparos resonaron en Dallas. Murió el presidente Kennedy, y el mundo cambió. ¿Qué harías tú si pudieras impedirlo?

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.

Travel to other planets is now a reality, and with overpopulation stretching the resources of Earth, the necessity of finding habitable worlds is growing ever more urgent. There’s a problem though—because the spaceships are slower than light, any communication between the exploring ships and Earth would take years.

Tom and Pat are identical twin teenagers. As twins they’ve always been close, so close that it seemed like they could read each other’s minds.

The Light Brigade: it’s what soldiers fighting the war against Mars call the ones who come back...different. Grunts in the corporate corps get busted down into light to travel to and from interplanetary battlefronts. Everyone is changed by what the corps must do in order to break them down into light. Those who survive learn to stick to the mission brief - no matter what actually happens during combat. Dietz, a fresh recruit in the infantry, begins to experience combat drops that don’t sync up with the platoon’s.

Seventeen-year-old Molly's recurrent nightmares become waking visions after she nearly drowns at a party. Soon she's witnessing events through the eyes of a girl who lived in her father's house nearly a century before.

During the test flight of a prototype faster-than-light craft, Lt. Commander Ky is flung into an ancient past that never existed. Rome has fallen, defeated by the mighty Carthaginian Empire, its survivors chased off the continent and onto what had been the remote province of Britannia. Hounded by the Carthaginians bent on conquering the known world, Rome is on the verge of destruction. Stranded and alone, except for a tactical AI implanted in his head, Ky has lost everything and must find a way to live in a world different than anything he's ever known.

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.

Fourteen-year-old Nephele used to have friends. Well, she had a friend. That friend made the adjustment to high school easily, leaving Nephele behind in the process. And as Nephele looks ahead, all she can see is three very lonely years. Nephele is also a whip-smart lover of math and science, so she makes a plan. Step one: invent time travel. Step two: go back in time, have a do-over of ninth grade, crack the code on making friends, and become beloved and popular. Does it work? Sort of. Nephele does travel through time, but not the way she planned - she’s created a time loop.

Amber Kelly, mining lawyer and amateur paleontologist, visits her family’s 19th century log cabin in the Colorado mountains and discovers a puzzle box hidden in a 200-year-old loom. Inside the box is a brooch engraved with a Gaelic inscription. After reciting the words, an earthy-scented fog engulfs Amber and whisks her off to Leadville, Colorado, in the year 1878.

The year is 1989. America has just invaded Noriega's Panama. And Specialist Bennett's platoon of Cav Scouts are in country… with, frankly, not a whole lot to do. Until a freak rainstorm somehow transports the entire platoon—Humvees, weapons, and all—to another world. A world controlled by a wicked Aztec god. The Land of the Black Sun. In a heartbeat, the Scouts find themselves fighting for their lives against savage beasts, witches, zombies, subhuman tribes seeking sacrifices… and even themselves.

Four years after the Nihil and the Order has a new threat. A clay tablet is discovered at an excavation in Knossos, Crete. The text is written in a language that no one can decipher, but the Nazis have come to claim it and Napoleon sends his own Savants Temporal to the Minoan tomb. Meanwhile, something ancient is infecting the descendants of the great houses of Europe. Book four in the best selling Infinity Engine series.

The team of heroes extracted from their timelines to stop the impending apocalypse didn't think they needed a leader. But they've got one anyway. With their mission in tatters, Miri has been called in to steady the ship. And to focus them on their assignment: preventing the end of the world. The problem is, the world doesn't know it's in danger. With governments pursuing them relentlessly, attempting to steal the time-travel device to use for their own ends, the heroes are on the run.

Time is running out for planet Earth. Marseria, the insidious Martian plague, has been infecting our planet for over twenty years and has resisted every human effort to eradicate it. With all life on Earth facing extinction, the only solution left is to directly access a specific piece of Martian technology. But, according to diaries left behind by Ogilvy the astronomer, the Martians have hidden it at the lake on the moon.

Because he is too young, Lord Jaxom is not allowed to fight the dreaded Thread, so he and his white dragon—Ruth—train themselves in secret. Their delightful, illicit flight leads them into danger—and the chance to prevent unimaginable disaster.