Sophomore year. Abigail should've been worried about Homecoming Court and the PSATs, but instead she's worrying about somebody noticing the fact that she's superhuman-faster, quicker healer, stronger, and sharper senses. And when the government takes her for their own benefit, she becomes the perfect killer. Levi is a senior when a mysterious girl shows up, a genius with a mysterious side who calls herself Celeste. But she's anything but celestial, as he discovers who she really is-the girl he'd been crushing on sophomore year, taken away from him and turned into a Barbie doll on a killing spree. But what she does isn't in her control, and Levi might be the only one who can help her.