Book picks similar to
Déjà Vu by Karen Janowsky


time-travel
romance
science-fiction
sci-fi

Project Hail Mary


Andy WeirAndy Weir - 2021
    He can't even remember his own name, let alone the nature of his assignment or how to complete it.All he knows is that he's been asleep for a very, very long time. And he's just been awakened to find himself millions of miles from home, with nothing but two corpses for company.His crewmates dead, his memories fuzzily returning, he realizes that an impossible task now confronts him. Hurtling through space on this tiny ship, it's up to him to puzzle out an impossible scientific mystery—and conquer an extinction-level threat to our species.And with the clock ticking down and the nearest human being light-years away, he's got to do it all alone.Or does he?An irresistible interstellar adventure as only Andy Weir could imagine it, Project Hail Mary is a tale of discovery, speculation, and survival to rival The Martian—while taking us to places it never dreamed of going.

The Girl Who Ignored Ghosts


K.C. Tansley - 2015
    Not because she’s never seen one, but because she saw one too many. Refusing to believe is the only way to protect herself from the ghost that tried to steal her life. Kat’s disbelief keeps her safe until her junior year at McTernan Academy, when a research project for an eccentric teacher takes her to a tiny, private island off the coast of Connecticut. The site of a grisly mystery, the Isle of Acacia is no place for a girl who ignores ghosts, but the ghosts leave Kat little choice. Accompanied by her research partner, Evan Kingsley, she investigates the disappearance of Cassie Mallory and Sebastian Radcliffe on their wedding night in 1886. Evan’s scientific approach to everything leaves Kat on her own to confront a host of unbelievables: ancestral curses, powerful spells, and her strange connection to the ghosts that haunt Castle Creighton. But that’s all before Kat’s yanked through a magic portal and Evan follows her. When the two of them awaken 129 years in the past with their souls trapped inside the bodies of two wedding guests, everything changes. Together, Kat and Evan race to stop the wedding-night murders and find a way back to their own time—and their own bodies—before their souls slip away forever.

Eternal Vows


Chrissy Peebles - 2012
    even if he is a drop-dead gorgeous immortal king.Never pretend to be a princess.And most importantly... never slip on an ancient wedding ring you know nothing about.Sarah Larker returns to a cave where her sister disappeared ten years earlier. She walks through a portal and is mistaken for a runaway princess on the run by a dangerous immortal king in medieval times. Her plan is bold as well as daring-become this princess, wed the king, and slip on an ancient wedding ring that will unlock the portal back home. Then find her sister and run as fast as she can out of Dodge. But taking on the identity of Princess Gloria comes along with dangerous consequences; and slipping on the ruby ring comes with an even higher price.

Ajax (The Sobekian Project, #1)


Olivia Hutchinson - 2019
    The little safety I had was ripped away in a single morning, leaving me alone and destitute on an alien moon. Agreeing to go with the not-quite-human male wasn't the wisest decision I ever made, but it was the only choice I had.I have one goal: stick by Ajax's side until we find my missing friend and her father, even if that means giving myself over to him after he bellows loud enough for everyone in the galaxy to know I'm his. What he doesn't know is that I'll never belong to him.I'll never belong to anyone but myself.CONTENT WARNING: This almost-human alpha male meets his match in a woman who knows how to take care of herself. Strong language, graphic sexual situations, and happily ever after included.