Which Best Science Fiction Books Explore Time Travel Themes?

Valentine Crimson is a young twenty-two year old adult who accidentally time travels to a wrong place back in 2015 in west where he meets the only heir of the royal family Angelica Kenneth. He saved her life and returns back to his time period 2022 by default. After seven years they meet again. Angelica Kenneth who has now disguised herself as a normal citizen named Lucia. When, Valentine saw her for the first time, he fell in love and wants to stick around. But sticking around with her majesty will bring danger to his life too, unaware of the possible danger coming at him, he falls for her deeper and deeper. . It's a rom-com drama novel inspired with sci-fi and adventure. It is a slow romance.

The Nation of Gryaz has fallen, crushed under the foot and the flying cities of The Empire.Red_Two, a scientist forced to recreate the technologies that had failed him, learns about the Time Travel Project, and makes a vow to steal the device to save himself, and potentially undo the destruction of his home nation. But as he travels into the past, and meets the kindest man and scientist that he has ever known, will Red_Two be able to truly carry out his original goals, considering what is at stake if he does so?Will the spy that he meets let him, or will she simply destroy his world, as he once destroyed hers?

I am not a mermaid but with only a simple touch, I can make someone forget about me. I am not a time traveler, but I am very prone to waking up to other people's bodies, a different scenario, and a different timeline. If someone will ask me who I am, my only answer will be... I am someone lost in time.

Nova Scott is a 23 year old scientist. She's strong, beautiful and one of the best scientists you'll ever find. One mistake and she gets caught up in a time warp which takes her 5 centuries backwards. She's mistaken for the princess and forcefully betrothed to the most cold, ruthless and dangerous King in history. Will she fight back? Will she survive and get out of there before it's too late? Or will she follow her destiny?

Eliza Ward does not fall through time. Time bends toward her. Pulled from the present into Revolutionary America, Eliza becomes trapped in a landscape where history repeats unevenly, battles restart with variations, and memory functions as both anchor and weapon. She is not a chosen heroine, but a constant: a woman whose awareness destabilizes the moment itself. She meets Mercy Hale, a midwife and witch who understands time as a negotiation rather than a force to command. Mercy aids Eliza’s survival while refusing the role of savior, having already learned the cost of standing too close to history’s center. During a looping battle, Eliza saves Thomas Reed, a Continental soldier who does not shift when time does. Thomas is an anchor: steady, observant, unchanged across iterations. Their bond deepens in an almost-normal village where time briefly behaves. Eliza’s intervention triggers time’s response. Rather than immediate destruction, time collects interest. Mercy bargains to spare Eliza and Thomas, sacrificing her own future to stabilize the present. Time extracts payment from Eliza as well, stripping away her voice, the very tool she uses to name and hold moments in place. Silenced and unmoored, Eliza is violently displaced back into the original battle. Unable to anchor the moment, she watches Thomas die in the version of history that was always waiting beneath her defiance. Told in rotating perspectives between Eliza, Thomas, and Mercy, The Hours That Refused to Behave is a lyrical time-travel novel about revolution, restraint, and consequence, asking not whether history can be changed, but who pays when it is.

Aurora is the only daughter in a wealthy family, she has a hot temper, is arrogant, and likes to show off. She dyed her hair blue, pierced her earrings, and got tattoos. She was a spoiled child who was over-indulgent. Suddenly, in one class like any other day. Aurora becomes invisible. She had no reflection in the mirror, could not touch anything, She could only touch what she was carrying with her. The classmates around were still laughing and chatting as usual. Even if she screams, no one will hear. Aurora is extremely scared, she tries to go home to seek help, but after returning home she finds her family has been changed. The family that was once warm and happy suddenly had nothing left because the past had changed. Now, her mother, Breana Clayden, had been in prison thirteen years ago, and her father, William Dylson, had married another woman twenty years earlier. And now, he has another family, another wife, and another child. And Aurora - is a person who was never born. A strange person in the form of an old clock appears - Luan, Luan tells her that the past has changed, and she has become an outcast of time. At the same time, that person gives her the opportunity to reclaim everything, and reclaim her happy family, her identity, and her future. Did this strange man named Luan have any plots? If Aurora fails to prevent the time paradox from happening, what punishment will she be subject to? How will Aurora choose? The dark and confused truth lurks behind the film of time, deep in the past, will she find it?