Science Fiction Alternate Universe

Roy Court and his crew are taking the trip of a lifetime—several lifetimes in fact—duplicated and dispatched across the galaxies searching for Earthlike planets. Many possibilities for the future. Yet for Roy, no matter how many of him there are, there’s still just one painful, unchangeable past. In what world can a broken relationship be reborn? The universe is so vast, there’s always room for hope.

"They're after you. But which you...?" Mistaken for her imperiled, notorious genius scientist alter ego, Laney's accidental trip to a parallel world could very quickly turn very deadly. Dr. Laney Carter is a Nobel-prize-winning physicist, awarded for her groundbreaking experimental research on string theory and quantum universes, and then led her team to successfully develop the first working prototype allowing safe, stable and educational inter-dimension travel. Two months ago, she disappeared. So did the prototype. So, why are there government trackers hunting down seventeen-year-old ...

For one bright, shining moment, Tybalt, King of Cats, had everything he had ever wanted. He was soon to set his crown aside; he had married the woman he loved; he was going to be a father. After centuries of searching for a family of his own, he had finally found a way to construct the life of his dreams, and was looking forward to a period of peace—or at least as much peace as is ever in the offing for the husband of a hero. Alas for Tybalt and his domestic aspirations, fate—and Titania—had other ideas.

Young Alvin returns to the town of his birth and begins his apprenticeship with Makepeace Smith, committing seven years of his life in exchange for the skills and knowledge of a blacksmith. But Alvin must also learn to control and use his own talent, that of a Maker, or else his destiny will be unfulfilled.

“Would you risk everything to get home?” Three parallel worlds. One supernova. How hard could it be? Laney Carter needs to go home. Except the journey back will be as dangerous as staying. Thanks to her genius scientist “alternate self”, she’s been stuck on a parallel world, tormented by her alter egos, being hunted by secret organizations. Her life in constant peril. Laney has to trust a radical theory to cure her bizarre condition and return to her original dimension before the forces threatened by her existence catch up to her. What would she be willing to sacrifice to go back ...

Science Fiction Stories 4 by Various Authors is a spellbinding collection of science fiction short stories that transports readers to extraordinary realms, exploring dystopian futures, post-apocalyptic landscapes, and thrilling adventures in space. Discover the Extraordinary Experience the gripping "The Music Never Stopped" where Captain Thofas Stanton faces a stormy challenge on Yohnston Island. Uncover the enigma in "The Oldest Question" as scientists grapple with a profound mystery that could change the course of humanity. Navigate the futuristic society in "Refuse All Replacements" ...

Joey Harker isn't a hero. In fact, he's the kind of guy who gets lost in his own house. But then one day, Joey gets really lost. He walks straight out of his world and into another dimension. Joey's walk between the worlds makes him prey to two terrible forces: armies of magic and science who will do anything to harness his power to travel between dimensions.

Somewhere on the frontier between thought and reality exists the Discworld, a parallel time and place that might sound and smell very much like our own, but that looks completely different. It plays by different rules. Certainly it refuses to succumb to the quaint notion that universes are ruled by pure logic and the harmony of numbers. But just because the Disc is different doesn't mean that some things don't stay the same.

In Kingsley Amis’s virtuoso foray into virtual history, it is 1976, but the modern world is a medieval relic, frozen in intellectual and spiritual time ever since Martin Luther was promoted to pope back in the sixteenth century. Stephen the Third, the king of England, has just died, and Mass (Mozart’s second requiem) is about to be sung to lay him to rest. In the choir is our hero, Hubert Anvil, an extremely ordinary ten-year-old boy with a faultless voice.

More than 50 years after publishing his first story, Hugo Award-winning author Asimov remains one of the great names in science fiction. Almost single-handedly he transformed the field from the romantic and Gothic legacy of Jules Verne and Edgar Rice Burroughs into the rational, clear-minded genre that exists today. This selection of some of Asimov's most enduring and unforgettable stories is read by the author himself. These vintage tales encompass the full range of Asimov's versatility, while displaying his puckish sense of humor.

The sky is not the limit. From an alley in New York to an interstellar wormhole, the path to the future looks different for everyone. These cosmic short stories from some of today’s most influential Black authors reveal a universe of possibilities.

"If you enjoyed A Wrinkle in Time or Tuck Everlasting, get ready for the treat Sandcastle for Pegasus is." –Jim Laughter, author of The Apostle Murders Sandcastle for Pegasus is the story of Martin Taylor, a devoted husband and father of a mentally challenged son, Luke. Martin's world is torn apart when, Candy, who suffers from a similar condition, vanishes and no one except for Martin seems to remember her. Clues indicate someone is traveling through time to undo the birth of anyone who doesn't measure up. Martin's son, Luke, is a target and attempts on his life have already been made. ...

This world is trying to kill Lily Proctor. Her life-threatening allergies keep her from enjoying experiences that others in her hometown of Salem take for granted, which is why she is determined to enjoy her first high school party with her best friend and longtime crush, Tristan. But after a humiliating incident in front of half her graduating class, Lily wishes she could just disappear. Suddenly, Lily is in a different Salem - one overrun with horrifying creatures and ruled by powerful women called Crucibles.

The explosive sequel to Time Smash! From worlds ruled by dinosaurs, fourteen-year-old Chase is suddenly slammed into Pleistocene forests filled with savage wolves, enormous cave bears, and saber-toothed cats. But now he's being stalked by the most dangerous, relentless, unpredictable predator of them all. Man. Don't blink, don't breathe, and don't move a muscle. Read Time Slam today!

"What if your dreams are a window into a parallel world...?" Eight months ago, seventeen-year-old regular high school student Laney Carter saved the multiverse. But now she can't remember. To make matters worse, her alternate world selves have begun "The Bleed", wreaking havoc on her life - an unexpected side effect from her previous journey to the other parallel world. Luckily, tall, hot and brooding Noah Donovan is back to take her to his world again, and a team of genius friends in the New World are endeavoring to get her memory back and formulate a cure. And Laney needs one, fast. A ...

London 1888. His Majesty's airships troll the sky powered by antigrav liftwood as a cabal of Iron Lords tightens its hold on a Britain choked by the fumes of industry. Mars has been colonized, and clockwork assassins stalk the European corridors of power. And somewhere far to the east, the Old Man of the Mountains plots the end of the world with his Forever Engine. Enter Jack Fargo. Scholar. Former special forces operator in Afghanistan. A man from our own near future thrust back in time - or to wherever it is that this Brave Victorian World actually exists.

Pulled from his world by an experiment gone wrong, Darwin Lloyd is one of the few who can see the Threads - quantum strings that can be manipulated to change or control reality. On an alternate Earth ravaged by war, Darwin is torn between the Qabal and SafeHaven, his only goal to find a way back home and stop the same fate from happening in his time line. Threads - thought of as a gift from the machine he helped his father create - and Threaders are both loved and hated, treated as gods by some and as criminals by others.

Now you see him. Now you don't. / "The interaction between Brave and Lana is priceless..."- The Paranormal Romance Guild / After Dallas finance manager, Atalanta Ravin, was left standing at the altar in a publicly humiliating jilting, she quit her job, sold her house, gave away her furniture, and set off in search of a new and completely different life living on a boat in Boston Harbor. When she accidentally sailed into another dimension, she got the adventure she'd secretly longed for. But not in a thousand dreams could she ever have imagined that her fantasy lover might turn out to be a ...

Robbed. Exiled. Beaten. Scorned. Now, she’s coming back for everything! Devised to defend humanity from alien threat, Unidom’s absolute control reaches every settlement and space station. Mirov, an assassin built to impose Unidom’s willingness to kill until their side wins, is betrayed when Unidom takes away something more important than life itself. Hell hath no fury like Mirov scorned. In retribution for the chaos and quick deaths heaped upon their heads, Unidom exiles Mirov to another world and is forced to leave everything on Earth behind. Disgusted with Unidom’s increasing and ...

Four sci-fi short stories where you'll find good computers, people who regret their past, and an explanation for something you're familiar with.