Which Sci Fi Action Novels Explore Time Travel As A Weapon Of War?

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.

As the daughter to a prestigious family, she was trained as the heir of her father’s legacy. Usually, this type of training was well-suited for the boys of the family but since she’s the only child and she is a girl, her father allowed her to train. Due to her training, she had no friends and she was casted as an outsider. At a young age, she was expected to train both physically and mentally. She was both good in archery and swordsmanship as well as in her studies as she had an affinity with Japanese history. Years passed and her training was paying off. She was prepared to inherit the company when her parents announced that they will be having another child. Much to her dismay, her baby brother was born. She was stripped of everything she had prepared her whole life for. After an unfortunate car accident, she found herself in a different timeline. Will she be able to return to her own time?

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?

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.

Year 3150 where flying cars exists, time machines are prohibited, where existence are being questioned, and secrets are more important than truth. Time is a secret and none of you is the answer. Buried should not be unveiled or else the secrets will be told and you're the one who will be kept. Who are you when even your identity is a mystery? Does time really has a buried secrets or time is the secret itself?