Science Fiction Time Travel

It's sink or swim for Jack and Annie when Magic Tree House whisks them off to the middle of the ocean. And that's just the beginning....

David Rayne brought positive change to the other side of things. The ombria were seriously weakened, the Dark Queen destroyed, and Tesora saved. A well-deserved sense of peace stretched across the land. But one problem remained. The young man that saved the world was still stuck in it. His bid to return home had proven unsuccessful. The fate of his parents weighed heavily on his mind. Filled with a renewed sense of purpose, David sets out again to find a way to reunite with his mother and father. But the way forward is no more clear than it was the first time around. It will take the help ...

News alert! It has just been discovered that there are NO MORE TACOS left anywhere in the world. This is a huge problem because, as you know, dragons love tacos. If only there was a way for the dragons to travel back in time, to before tacos went extinct. Then they could grab lots of tacos and bring them back! It’s the perfect plan, as long as there’s no spicy salsa. You remember what happened last time....

Romanian Jewel Thief Viviana Petki knows she has kleptomania, but is she a sociopath, too? Returning from Saint-Tropez, where she stole the priceless Portensia diamond, she escapes the suspicions of US Customs by slipping the diamond into someone else’s suitcase. Only a sociopath would frame a random stranger without a second’s hesitation, yes? The hunt is on to find the suitcase’s owner and retrieve the diamond. But the search leads to much more than she’d bargained for. What she finds imperils not only her life, but that of her fourteen-year-old cousin—the one who has an ...

Cosmopolitan Magazine calls Addison's books..."easy, frothy fun!" Addictive from start to finish! The Celestra series has been optioned for film by 20th Century Fox! A halfbreed angel who can read minds, one too many love interests, and an entire faction of angels who are out to kill her—living on Paragon Island can be deadly. From NEW YORK TIMES, USA TODAY, and Wall Street Journal bestselling author, Addison Moore. From NEW YORK TIMES bestselling author Addison Moore A death. A war. Regret. Heartbreak. An old enemy. A new enemy. A well-placed boyfriend. An ending you won’t believe. ...

Charles Lewis sold the world in the future, its his job to fix it or leave it alone as it is.

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.

1945. Struggling for survival in a doomed Corsair fighter plane in the skies over the Pacific Ocean, World War II Marine pilot David Hamilton’s life suddenly and mysteriously takes a strange and ominous turn, leaving him searching for answers as he finds himself lost and alone in a different time, place, and perhaps, identity. With no choice but to enlist the help of two young strangers, David embarks on a desperate journey in a 1941 Ford Coupe that possesses its own secret past and purpose, to find his way back home and keep a promise made to the most important person in his life. As ...

When we last saw George and Harold, they were headed to jail for the rest of their lives. What could be worse? How about being pulled from prison by a time-traveling tyrant named Tippy Tinkletrousers?!!? Now the boys are taking a trip back in time to the carefree days of kindergarten, when the scariest thing they had to face was not evil mad scientists or alien cafeteria ladies but a sixth-grade bully named Kipper Krupp, the nephew of their clueless school principal.

A recklessly idealistic girl dares to test the perimeters of her tightly controlled (future) world and is punished by being sent back in time to a region of North America - “Wainscotia, Wisconsin” - that existed 80 years before. Cast adrift in time in this idyllic Midwestern town, she is set upon a course of “rehabilitation” - but cannot resist falling in love with a fellow exile and questioning the constrains of the Wainscotia world with results that are both devastating and liberating.

It's Christmas Day 1066 and a team from St Mary's is going to witness the coronation of William the Conqueror. Or so they think... However, History seems to have different plans for them and when Max finds herself delivering a child in a peasant's hut, she can't help wondering what History is up to.

Ryan "Quicksave" Romano has begun a new time-loop. His goal? To prevent New Rome's destruction at the hands of the vicious Meta-Gang. To do so, our favorite courier must explore both sides of the law: to become a corporate superhero in one loop, and a scenery-chewing supervillain in the next!

Newly Revised and Updated in 2025! Time snakes between alternate universes. Ever watchful, an alien intelligence survives on Mars, waiting to be found by spacefarers from Earth. The alien’s ultimate goal is to send human astronauts back in time, where they will alter the past and thwart the extinction of the dinosaurs. A race of intelligent dinosaurs, resembling the alien’s extinct species, subsequently evolves to rule the world. But a human female astronaut, through a strange twist of fate, survives the change in the space-time continuum. After finding herself in a dinosaurian body, ...

In 2061 a young scientist invents a time machine to fix a tragedy in his past. But his good intentions turn catastrophic when an early test reveals something unexpected: the end of the world. A desperate plan is formed: recruit three heroes, ordinary humans capable of extraordinary things, and change the future.

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.

Cosmopolitan Magazine calls Addison's books..."easy, frothy fun!" Addictive from start to finish! The Celestra series has been optioned for film by 20th Century Fox! A halfbreed angel who can read minds, one too many love interests, and an entire faction of angels who are out to kill her—living on Paragon Island can be deadly. From NEW YORK TIMES, USA TODAY, and Wall Street Journal bestselling author, Addison Moore. From the NEW YORK TIMES bestselling author Addison Moore: Seventeen year-old, Skyla Messenger finds herself lying on an altar as a sacrifice to the enemy. Being an angel of ...

Tristan Lyons, Mel Stokes, and their fellow outcasts from the Department of Diachronic Operations (D.O.D.O.) fight to stop the powerful Irish witch Gráinne from using time travel to reverse the evolution of all modern technology. Chief amongst Gráinne’s plots: to encrypt cataclysmic spells into Shakespeare’s “cursed” play, Macbeth. When her fellow rogue agents fall victim to Gráinne’s schemes, Melisande Stokes is forced to send Tristan’s untested, wayward sister Robin back in time to 1606 London.

Step into the opulent world of The Mirror of Time, the next captivating installment in the Touching Time Psychic Time Travel series. Tressie Marrow, together with her enigmatic cat Buford, finds herself entangled in a tale of reflection and intrigue, when an ornate Renaissance mirror becomes their portal to the past. Transported to a duchess's grand palace, Tressie uncovers a story of art, ambition, and a wrongful accusation of witchcraft. In the midst of Renaissance splendor, she delves into a world where every reflection holds a secret, and every glance reveals a hidden truth. As Tressie ...

Gwen's life has been a rollercoaster since she discovered she was the Ruby, the final member of the secret time-traveling Circle of Twelve. In between searching through history for the other time-travelers and asking for a bit of their blood (gross!), she's been trying to figure out what all the mysteries and prophecies surrounding the Circle really mean. At least Gwen has plenty of help. Her best friend Lesley follows every lead diligently on the Internet. James the ghost teaches Gwen how to fit in at an eighteenth century party.

When one of the time-traveling crew is running for student-body president at Manchester Middle School, Rush Revere takes them back in history to witness the election and leadership of our first three presidents.