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.

Jon Ryan had lived long enough to know better. But with age does not automatically come wisdom. He has saved mankind many times. He even resurrected Earth and all its inhabitants from never-having-existed. But he's still haunted, and haunted people do crazy things.

Rigg’s journey comes to an epic and explosive conclusion as everything that has been building up finally comes to pass, and Rigg is forced to put his powers to the test in order to save his world and end the war once and for all.

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 Skyla Messenger’s days are drawing to an end. Seventeen year-old Skyla has been taken by the Counts, is under the strict...

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.

Yesterday’s mystery requires the detective of tomorrow. Fans of hard-boiled, tough-as-nails detectives have a new hero in this action-packed three-book mystery collection from Nathan Van Coops. Snappy dialogue, mind-bending time travel, and laugh-out-loud humor will keep you up late solving this series of electrifying whodunits.

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 ...

Ryo was a chef, an extremely good one at that. Now he's back in time in an alternate dimension and the retainer of a Feudal Japanese Lord, in charge of his defense from an upcoming Mongol invasion. What is a Space Force Food Service Specialist supposed to do? Accompanied by an extremely advanced Artificial Intelligence, a medieval noble, and his samurai retainers, Ryo sets out to change the known world. At least this dimension's version of it!

Nothing ever changes in Sanders. The town's still got a video store, for God's sake. So why doesn't Eli Teague want to leave? Not that he'd ever admit it, but maybe he's been waiting - waiting for the traveler to come back. The one who's roared into his life twice before, pausing just long enough to drop tantalizing clues before disappearing in a cloud of gunfire and a squeal of tires. The one who's a walking anachronism, with her tricorne hat, flintlock rifle, and steampunked Model A Ford.

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 ...

The world she knew is gone. The climate crisis that doomed her future hasn't begun yet, but neither has the fight to stop it. Stranded decades before disaster, Sara must convince a skeptical world to change course before it’s too late.

During the booming 1920s Dianne Dameron was the privileged daughter of a real estate heiress and a dynamic builder of homes for the wealthy. But in 1935 her mother's fortune is gone while her warehouses stand empty, and the small house Dianne's father is building is his last contract. At the age of 25 and with no prospects, Dianne is facing the reality of a long and lonely spinsterhood in the shadows of her parents' decaying mansion until an intense stranger with freshly shined shoes and polished manners begs her father for work; any work. Dianne finds herself irresistibly drawn to this ...

It had to happen. St Mary's is under investigation. Their director has been shot and Max is Number One Suspect. She needs to get away - fast - but dare she risk another jump so soon? And if she does, will it be a case of from the frying pan into the fire? We all know the answer to that one.

When the unthinkable happens, Seffy faces the worst apocalypse she could ever imagine. Will her friends force her into an off-brand solution that brings only the illusion of peace from heartbreak? Or will she follow in the footsteps of her namesake and get her second chance after all?

This story is about an unexpected invention. If a country discovers a miracle invention, their first priority isn't to monetize it or to use it for the growth of their country. Their first priority is to protect that secret from falling into the hands of enemy spies. Every country has a network of spies spread across the globe to gather secret information. They work with informants who compromise target's and gather information from them. These spies can be anyone. They can be the barista at the coffee shop you go to every morning, the well dressed business man who seems late for his ...

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.

It's Christmas Eve at St Mary's And all through the house Nothing is stirring... Except for Max, Peterson and Markham, sneaking out at midnight for an assignment that is very definitely off the books. It's ten years ago tonight that Senior Historians Bashford and Grey went missing in 12th century Jerusalem. So how did they end up in AD60 Roman Colchester?

Dr. Tyson Klein is a quantum physicist who has dedicated his entire life to his research. At CERN, he analyses data generated by the Large Hadron Collider, the world's biggest and most powerful particle accelerator. Now, Ty believes he's found a pattern in its output. It looks like an organised data stream, being broadcast over what he calls a quantum radio. Could it be a signal from another universe? A message sent from the future? Or something else entirely?

When a spontaneous time leap sends Nickolas Flux back to the Salem, Massachusetts, during the height of the witch trials, what's a teenage history buff to do? Try to avoid being tried for witchcraft, of course! From meeting accused witches to running from angry mobs, Nick must survive one of the most frightening moments in American history.

Alex Hawk spent a decade trying to return from Kragdon-ah. Now he is safely back in the 21st century with daughters Amy and Sanda and his loyal, giant dog. All is peaceful and good, until 10 years later, Alex hears an incredible commotion in the basement where the door into time still stands safely behind a brick wall. The wall has fallen. A giant warrior has stepped through and uttered four words in a language Alex has almost forgotten: "Manta-ak! We need you!"