Do Best Sci-Fi Mystery Books Include Time Travel Plots?

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.

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.

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?

Meet Esmerelda Sleuth. Sleuth is her name and investigating is her game. (Paranormal Investigating, that is.) Esmerelda makes a good living as an investigator in a rather progressive firm. She lives a stable and sensible life until she meets Lance; an old money "hottie" who works for a real estate firm next to her building. After accepting an invitation for a weekend getaway party, she quickly discovers that Lance has a secret. He is wealthy. That part is true. And, yes, he's procured a job as a realtor in the building next door. His secret is that he belongs to an underground society of humans who didn't abandon their connection to magic centuries ago when religion declared it evil and he has traveled through time specifically to find her and bring her back to his time to marry him. If that isn't enough of a far fetched tale to absorb, he informs her that she was born in his time to a family belonging to that same secret society and was promised in marriage to him as an infant. When enemies who didn't want to see the union of families take place made attempts on her life, her parents sent her into the future and erased her memories of them as a precaution. Possessing virtually no belief in magic, ghosts, psychics, time travel, etc., it takes some doing on Lance's part to convince her to believe his story and go back with him. When she does, the lies, deceit and attempts on her life start all over again. Will she escape emotionally and physically unscathed? "The Other Side Of the Mirror" is a steamy-paranormal-romance- mystery-thriller and book one of the Esmerelda Sleuth series.

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?

Lies, deceit and darkness lead Esmerelda on a journey through dimensions where she faces a world she never knew existed. Dark lords, aliens, and vampires await as she struggles to save her friend from the vampires by aligning with aliens who she later learned were cannibals! Through it all, she's finally reunited with Lance... but what about Killian? The thrills, suspense, and romance continue in "Beyond the Portal", book 3 of the Esmerelda Sleuth, Paranormal Investigator series.