How Do Classic Hard SF Books Handle Time Dilation And Relativity?

The cocktail hour had just ended when I picked up a video call in the bridal suite. It was Ethan, three years from now. By then, time‑travel tech had matured enough to let him contact me three years into the past. After enough specific details, I finally believed it. The man on the screen really was Ethan, three years older. I rubbed my aching ankle and pouted at him through the screen. "Ethan, smiling at all these guests is exhausting. But the second I remember I actually married you today, I'm happy all over again." "We're still happy three years from now, right?" He was leaning back against a headboard, and he didn't answer. His face was flat and unreadable. Then I heard it: a woman's voice from his end, low and breathy, asking to be kissed. I froze for a second, then covered my mouth and laughed. "Is that future me? In broad daylight? Get a room." Ethan turned the camera into the bed. My maid of honor was lying there, naked, sprawled across his chest. Her body was covered in hickeys. He looked straight at me as I started to break, and his voice didn't shift at all. "As soon as the reception ended, I told you I had a client meeting. I went to her room instead." "Jo, now you know what's coming. The guests haven't gone home yet. If you want a divorce tonight, you can have one. Up to you."

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?

We can't really control time, if time paused we can't really do anything about it. If the time starts to move again then take chances before it's too late. During their past life, they already know will come to an end. But a chance was given for them to live and find each other to love again.

"There's something so fascinating about your innocence," he breathes, so close I can feel the warmth of his breath against my lips. "It's a shame my own darkness is going to destroy it. However, I think I might enjoy the act of doing so." Being reborn as an immortal isn't particularly easy. For Rosie, it's made harder as she is sentenced to live her life within Time's territory, a powerful Immortal known for his callous behaviour and unlawful followers. However, the way he appears to her is not all there is to him. In fear of a powerful danger, Time whisks her away throughout his own personal history. But going back in time has it's consequences; mainly which, involve all the dark secrets he's held within eternity. But Rosie won't lie. The way she feels toward him isn't just their mate bond. It's a dark, dangerous attraction that bypasses how she has felt for past relationships. This is raw, passionate and sexy. And she can't escape it.

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.