Science Fiction Time Travel

Where did the tree house come from? Before Jack and Annie can find out, the mysterious tree house whisks them back to the prehistoric past. Now they have to figure out how to get home. Can they do it before dark, or will they become a dinosaur's dinner?

Magic most definitely resides in the Maine summerhouse where the mysterious Madame Zoya has granted the innermost wishes of its visitors. Now, three women have come to this special place with one thing in common: a painful past they would each like to rewrite. Amy, who hides a heartbreaking loss behind her seemingly perfect marriage and family...Faith, a widow in her 30s whose deepest grief is for a man from years ago...and Zoe, an artist shunned by her hometown for reasons she doesn’t know after a traumatic night erased her memory.

On Tommy Llewellyn’s first birthday, his doting parents awoke in a home without baby blankets and bottles in the fridge, without the photos of their newborn once scattered about, and without any idea that the one-year-old sleeping in their home was their child. That’s because Tommy Llewellyn is a boy who, in the very cosmic sense of things, will never be remembered—stuck in a universal Reset that causes everyone to forget he exists when the clock strikes midnight on his birthday each year.

With the Surial gone, Colton Beck has a chance to rebuild the Rusa race. Colton embarks on a dangerous journey to find answers, bringing his closest allies along for the ride. Each objective is a step toward to repopulating Nulit, but the ultimate price might be higher than they’re willing to offer. Now that the truth about the Angor has been realized, the Unity Accord will never be the same. Colton is determined to ensure his peoples’ position over the fabled Ocean, even if it tears the Unity apart.

Quinn Black thought his work was finished. After all, in the years since he discovered he could time travel, he saved the human race from disaster and restored hope to the world. At least in the current timeline of the universe. Out in the multiverse, the Earth—and everyone he loves—is in trouble again. Someone sent Quinn's team a video begging for help. If Dr. Green's assessment of reality is correct, how will he find his way home if he gets lost in the vast expanse of the cosmos? However, the alternative might be worse.

I've done some stupid things in my time. I've been reckless. I've broken a few rules. But never before have I ruined so many lives or left such a trail of destruction behind me. As Max would be the first to admit, she's never been one for rules. They tend to happen to other people. But this time she's gone too far, and everyone is paying the price. Grounded until the end of time, how can she ever put things right?

The magic tree house has returned, and it's taking Jack and Annie back in time to Alaska, 1925. There they meet Balto, a jet-black Siberian husky destined to save victims of the diphtheria epidemic. But the trail isn't easy, and Balto is going to need Jack and Annie's help!

Ann Decker fixes computers for a living, and in the evenings she passes the time sharpening her hacking skills. It's not a very interesting life, but she gets by - until one day she's contacted with a job offer for a company called Transformations Incorporated. None of her coworkers has ever heard of it before, and when Ann is finally told what the company does, she can hardly believe it: TI has invented technology to travel in time.

At the height of the air war in Europe, Captain Joe Farley and the baseball-loving, wisecracking crew of the B-17 Flying Fortress Fata Morgana are in the middle of a harrowing bombing mission over eastern Germany when everything goes sideways. The bombs are still falling and flak is still exploding all around the 20-ton bomber as it is knocked like a bathtub duck into another world.

Doctor Benjamin Schröder was far from a man of action. In fact, he was a history teacher - chairman of the Castle Rock University history department - and if his life wasn't perfect, it was close. Until, that is the discussion of his star student Elzbietá Abramowski's dissertation on Operation Oz, the Pacific Allies' invasion of Vladivostok, was brutally interrupted. The psychotic episode that turned his entire world upside down struck with absolutely no warning, and it was more terrifying than anything he should have been able to imagine.

Anakin Skywalker and Obi-Wan Kenobi find themselves caught on a hostile planet, and facing their savviest enemy yet, a master of disguise named Granta Omega.

In this companion volume to A Wrinkle in Time (Newbery Award winner) and A Wind in the Door fifteen-year-old Charles Wallace and the unicorn Gaudior undertake a perilous journey through time in a desperate attempt to stop the destruction of the world by the mad dictator Madog Branzillo. They are not alone in their quest. Charles Wallace's sister, Meg - grown and expecting her first child, but still able to enter her brother's thoughts and emotions by "kything" - goes with him in spirit.

Sarah Lester's mother is missing, and the Indian uprising holds her father captive. The police want to question her, and even the church is demanding its pound of flesh. Her return to The Old Curiosity Shop raises more questions than answers. Waiting in the shadows is a vengeful Richard Grey. After discovering Sarah’s ability to travel through time, nothing will stop him from restoring his name to its former glory. Not even time. Can Sarah reunite her scattered family before Grey closes the doorway to the past?

After the explosion, Will didn't expect to wake up again, especially in the past. Alive is good. Except he finds himself at the Alamo in 1836 in the body of another man doomed to die. If history repeats itself, Santa Anna is coming soon, and the Alamo will fall, along with himself and 189 others. In a race against time itself, Will uses his knowledge of the future to change the past. He will use every means necessary, even if it means abandoning the fort. He is determined to forget the Alamo!

In this riveting suspense thriller, two children race the clock to stop a futuristic murderer and his plan to enslave the world. In 30 days, a coldhearted corporate tycoon will unleash a deadly biological computer virus on the entire world. As the public eagerly awaits his invention that promises ultimate relaxation, harmony, and community, the evil big-business sorcerer plans to put an end to freedom. Can he be stopped?

A young girl, Rella Deveraux-PenSword, is called to protect and defend Hleo: an enchanted refuge for the children of Earth One. Rella must stop a plague of Shadowsplitters, the miscreations of the plagiarist Archimago, from destroying the Wondercurrent: a source of life and hope for all the children under Hleo's protection. Rella's parents, Winter and Julian, are part of a secret alliance of Storykeepers. First, her mother disappears. Then, a few years later, when her father goes missing, Rella is forced to flee her home in the rural village of Ensea.

One day, six towers appear on Earth. Each one stands hundreds of stories tall, and are invulnerable to all attacks. At the base of each tower is a portal, welcoming in all who dare enter it. All sorts of magical monsters can be found inside the towers. Even treasure, magic, and superhuman strength can be acquired. The problem is that the towers aren't a friendly place. Even worse, the towers sometimes release waves of monsters to attack Earth. In the year 2083, there are only a hundred survivors. In one last attempt, they challenge the final floor without regard for their lives.

He’s carved a home out in the wilderness, and met its inhabitants, killing some and making friends with others. Things are looking downright cozy—in a bushcraft kind of way—but there’s a village to the east with tools, resources, and new magic to learn. That’s all incredibly tempting when living among the wild things. Where there are people though, there are complications, including the murder-y kind.

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.

El 22 de noviembre de 1963 tres disparos resonaron en Dallas. Murió el presidente Kennedy, y el mundo cambió. ¿Qué harías tú si pudieras impedirlo?