Science Fiction Time Travel

Time is a resource. Everyone knows it has to be managed. You mess with it at your peril. You can let it move fast or slowly, but what you mustn't do is allow it to stop. The Monks of History have the glamorous job of time management in the Discworld. They store it and pump it from the places where it's wasted (like underwater—how much time does a codfish need?) to places like cities, where there's never enough time. But the construction of the world's first truly accurate clock starts a race against, well, time for Lu Tze and his apprentice Lobsang Ludd.

When Madeleine Maxwell is recruited by the St Mary's Institute of Historical Research, she discovers the historians there don't just study the past - they revisit it. But one wrong move and History will fight back - to the death. And she soon discovers it's not just History she's fighting....

Having assumed the identity of a young D’Artagnan, Greg Rich is beginning to get the hang of things in 1615 Paris. But he hasn’t figured out how to get home yet. Or how to defeat the dangerous Michel Dinicoeur, who has made it his mission to destroy Greg, Athos, Aramis, and Porthos. When Dinicoeur escapes the Bastille and flees to Spain, the Musketeers charge after him, only to be ambushed. Someone is anticipating their every move. Could there be a traitor in their midst?

Scarlett would do anything to save her unborn baby, even return to a time she never thought she'd see again. Not for a moment had she missed the constant scrutiny of a celebrity life. To reappear now, inexplicably pregnant in the eyes of the modern world would create a media circus, but Scarlett knows she can overcome any obstacles with Laird at her side and the help of new friends drawn together across time itself by the enigmatic Scotsman known as Auld Donell.

Shannon Moss is part of a clandestine division within the Naval Criminal Investigative Service. In western Pennsylvania, 1997, she is assigned to solve the murder of a Navy SEAL's family - and to locate his vanished teenage daughter. Though she can't share the information with conventional law enforcement, Moss discovers that the missing SEAL was an astronaut aboard the spaceship USS Libra - a ship assumed lost to the currents of Deep Time. Moss knows firsthand the mental trauma of time travel and believes the SEAL's experience with the future has triggered this violence.

Despite being a young master of the Zearthorn sect, Neave is not a cultivator. And if he can have his way, he never will be. Years of daily beatings, bullying, and abuse haven’t been enough to make him change his mind, and the ultimatum from his father won’t be either. Forced to choose between an arranged marriage and a path of cultivation, Neave makes a third choice. In a desperate, last-ditch attempt, he enters a secret vault and encounters a treasure. A book he should have never touched.

In modern-day New York, magic is all but extinct. The remaining few who have an affinity for magic - the Mageus - live in the shadows, hiding who they are. Any Mageus who enters Manhattan becomes trapped by the Brink, a dark energy barrier that confines them to the island. Crossing it means losing their power - and often their lives. Esta is a talented thief, and she's been raised to steal magical artifacts from the sinister Order that created the Brink.

Armed with lancers, breech-loading rifles, steamships, and galleys, General Belisarius, accompanied by his own ally from the future, ventures into the Malwa Empire, a sixth-century kingdom ruled by Link, a horrifying and evil entity from the future.

In eighth grade, she knew one thing…. Science was awesome. Would her future self change the world? At 24, Paulette’s got a dream, but it’s going to take a lot of money. The best solution is to start her own bionics company and then she can fund her real vision.

Needle in a Timestack is Robert Silverberg at his very best - intelligent, inventive, and visionary. This collection showcases his talent for thought-provoking science fiction, ranging in themes from time travel to space travel, the media to mortality. In the titular story - under development as a feature film by Oscar-winning screenwriter John Ridley - a jealous ex-husband warps time in a vindictive attempt to destroy his former wife's new marriage. Thirty-one identical sons have a shocking surprise for their mother in "There Was an Old Woman".

In a time when no Thread has fallen for centuries - when, indeed, many are beginning to dare to hope that Thread will never fall again - a boy is born to Harper Hall. His name is Robinton, and he is destined to be one of the most famous and beloved leaders Pern has ever known.

Jodi Taylor’s best-selling series The Chronicles of St. Mary is back with a bang…St. Mary’s has been rebuilt, and it’s business as usual for the history department. But first there’s the little matter of a 17th-century ghost that only Mr. Markham can see. Not to mention the minor inconvenience of being trapped in the Great Fire of London…and an unfortunately timed comfort break at Thermopylae, leaving the fate of the Western world hanging in the balance.

Xyándor, a figure of immense evil and depravity, wants all of those creatures dead. But without the whales, there will be no more time. Our universe will cease to exist. Now the whales are decidedly huge—as large as an average galaxy. But with the application of sufficient cruelty and technology, they can be killed. Existence, once again, hangs in the balance.

It was a warm summer day in 1951 when Rose Pottinger and Mrs. Zimmermann entered the tunnel. When they had emerged, it was snowing...and the year was 1828. Mrs. Zimmermann had felt that the ghost of Granny Wetherbee, who had taught Mrs. Zimmermann witchery, was in trouble and needed help. So she and Rose Rita had traveled to Pennsylvania where Granny had lived. They never dreamed that they would also journey back to a time long ago where they would encounter a sorcerer more terrifying than either could have imagined.

Rigg is well trained at keeping secrets. Only his father knows the truth about Rigg’s strange talent for seeing the paths of people’s pasts. But when his father dies, Rigg is stunned to learn just how many secrets Father had kept from him - secrets about Rigg’s own past, his identity, and his destiny. And when Rigg discovers that he has the power not only to see the past, but also to change it, his future suddenly becomes anything but certain.

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.

A freak accident casts Joe Colsco naked onto another planet inhabited by humans with technology circa 1700. In time, Joe, now known as Yozef Kolsko, makes the difficult acceptance of a new life. But he has become embroiled in a struggle beyond any dream he could have had. The Narthani are a militant society intent on subjugating the Caedelli, the people he's come to identify with. Unwittingly, the Narthani themselves are creating an opponent unlike any they have ever faced, an enemy beyond their conceptions.

It’s Christmas again at St Mary's and time for Max’s obligatory illegal jump. On this occasion, however, they’re right up against it. A loaded gun has been left behind in Ancient Egypt, and it’s up to them to retrieve it before anyone accidentally blows their own head off, thus affecting the timeline for centuries to come. And as if that’s not enough, someone (Max) has inadvertently poisoned Mr Markham. It’s hot, they’re running out of supplies, they can’t find the gun and it’s all going horribly wrong. Again.

A formidable alien armada stands on the brink of vanquishing the cosmos, their gaze set firmly on every inhabited world. The last line of defense? An eclectic crew of improbable champions: a maverick starfighter pilot, a daredevil stuntwoman, a lethal super-assassin, and a cosmic prankster with alien tricks up his sleeves. Their mission is to shield not just humanity, but billions of other intelligent lifeforms spanning the multiverse.

Captain Blite knows that someone, or something, is trying to kill him. But a device he possesses, known only as the dark diamond, won't let that happen. After surviving a series of accidents and assassination attempts, Blite comes to realize that whenever he dies the dark diamond reverses time to a moment before his death. He must then go through the traumatic experience again and again until he escapes.