Thanks to Simon and Schuster for the free copy of this book.

Paleobotanist Molly is home alone with her two small children when she hears footsteps in the living room. She thought she'd been hearing noises recently, but now someone is here. Suddenly, she finds herself with an intruder who knows everything about her family and her life.

I can't fully discuss this book without some spoilers. The main reveal happens about 50 pages in or so, but if you want to go in blind, which I suggest, stop reading now! Just know that I give this book five stars and you should definitely read it, especially if you're open to a little sci-fi in your thrillers and/or the raw, animal side of being a mother.