Science Fiction Time Travel

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.

St Mary's has never lacked for enemies, but danger has never been closer to home. A state of war has broken out between St Mary's and the Women's Institute - the Raffia Mafia. Markham, Max, Peterson and Miss Sykes must jump to Restoration London in search of real Christmas pie - the honour of St Mary's is at stake. At least that how it all begins, but this is St Mary's after all.

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.

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.

She's only recently learned that she is the Ruby, the final member of the time-traveling Circle of Twelve, and since then nothing has been going right. She suspects the founder of the Circle, Count Saint-German, is up to something nefarious, but nobody will believe her. And she's just learned that her charming time-traveling partner, Gideon, has probably been using her all along.

En route to London from New York, Flight 305 suddenly loses power and crash-lands in the English countryside, plunging a group of strangers into a mysterious adventure that will have repercussions for all of humankind. Struggling to stay alive, the survivors soon realize that the world they've crashed in is very different from the one they left. But where are they? Why are they here? And how will they get back home?

The regulars at the magical Café Funiculi Funicula are well acquainted with its famous legend and extraordinary time-travel offer. Many patrons have reunited with old flames, made amends with estranged family and visited loved ones. But the journey is not without risks, and there are rules to follow.

Marc Spector is used to voices in his head. He’s used to waking up disoriented, unsure what his alters, Jake and Steven, might have been up to. He’s used to having an Egyptian god command him as Moon Knight, his avatar of justice and revenge. What he’s not used to: staring into the face of a literal, out-of-body doppelganger. Another Marc, crash-landed from an alternate reality, begging for help? Yeah, that is a new one, even for him. But before he can really process anything beyond Khonshu’s incessant alarm bells, it becomes clear this other Marc didn’t travel solo.

Meg Murry can't help but be worried when her six-year-old brother, Charles Wallace, announces there are dragons in the vegetable garden. He's so bright, and so different from other kids, he's getting bullied at school, and he is also strangely, seriously ill. But Charles Wallace is right about the dragons - actually a friendly entity who has come to help Charles Wallace fight his sickness, and to take Meg and her friend Calvin O'Keefe on a terrifying, wonderful journey into galactic space - where they must battle the force of evil to save Charles Wallace, and themselves.

Nationally syndicated radio talk show host Rush Limbaugh has long wanted to make history come to life for the children of his listeners. In this book, he travels back in time with fearless history teacher Rush Revere. With the help of his faithful talking horse, Liberty, Rush experiences American history as it happens, having adventure after adventure with exceptional Americans such as Paul Revere and George Washington.

The Oblivion Order is falling apart, and the time line is beginning to unravel. Dalton's obsession with the Djinn threatens to bring down the continuum and the only way to stop him is to resolve the riddles of the Eschaton Cascade and find Josh's father. Follow Caitlin and Josh as they discover the origins of the Order and the future that the founder was aiming to avoid.

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 grand house at war. A quest for revenge. And this time, there’s nowhere to hide. Sophie’s back in Shorten, fighting to protect her family, her friends, and her remarkable dog. But now Sophie has a price on her head that will destroy the Manor and everyone in it. One man’s centuries-old secret could have changed their fate, but he’s gone, murdered. Can a dead man’s whisper still save them?

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.

Arlan can go back in time by one minute, once per day. Fail a challenge? Say something dumb? He can get a redo as long as he acts fast. And every time he levels up, he can go back a little further. But, even with his growing power, Arlan has never been in more danger. He was left stranded in the middle of a monster-infested forest, nobody to rely on but himself as he fights to build strength. And his time magic wasn't given to him freely. He stole it. And its original owners would go to any lengths to take it back.

After years of bitter struggle, Trantor had at last completed its work - its Galactic Empire ruled all 200 million planets of the Galaxy...all but one. On a backward planet called Earth were those who nurtured bitter dreams of a mythical, half-remembered past when the planet was humanity’s only home. The other worlds despised it or merely patronized it - until a man from the past miraculously stepped through a time fault that spanned a millennium, living proof of Earth’s most preposterous claims.

Ten years ago, the 20th century and the Bronze Age were tossed together by a mysterious Event. In the decade since, the Republic of Nantucket has worked hard to create a new future for itself, using the technological know-how retained from modern times to explore and improve conditions for the inhabitants of the past

A sexy caveman story about a rich girl who is banished to the distant past in prehistoric times. Would she ever be able to go back to regular life after a weekend with a caveman? Pure, primal, rough, natural, his touch was like nothing civilization could offer. She was in total danger on the edge of survival, but through her love, naked and afraid, they survived, together.

A cosmic accident sets the modern town of Grantville, West Virginia, down in war-torn 17th-century Europe and a new nation is forged. Now when United States of Europe ally King Gustavas of Sweden invades Poland, the U.S. of E. is dragged into a full-scale European war against ruthless opponents. Meanwhile Mike Stearns, wily and courageous leader of the up-time West Virginians, has been turned out of office in an election. But, like Churchill (before and after him) Stearns is not done yet.

Liam Chapman cannot believe his good fortune. He just bought a real, working time machine at a garage sale for $3. Sure, it’s labeled “World’s Worst Time Machine,” but how bad could it be? The time machine, as it turns out, is so much worse than Liam could have imagined. First, it summons Thomas Edison, but not that Thomas Edison. This Thomas Edison is a 10-year-old aspiring gangster from 1933 who demands to be called “Tommy Twinkles” and is also very interested in robbing a bank of the future.