"They are so lovely and wear the face of your loved ones, but more beautiful than you could ever imagine. Lovely things shouldn't draw you in and kill you. You almost want them to."

Seventeen-year-old Blue Haven, gifted with superhuman sight since birth, dreams of becoming a warrior-not that anything's happened near the wall since Old Man Amos was attacked by that beaver. The Shadow Elves-humans infected by a zombie apocalypse-like plague-have died out over the past 150 years, leaving life altogether boring. In her quiet farming village nestled in the shadows of the Smoky Mountains, warriors are no more than a formality.

But Blue's unique sight is beginning to show her some troubling things. A suspicious green-eyed outsider. A strikingly beautiful Shadow Elf. These visions can't be real-because if they are, that means everyone's been wrong. Dead wrong. They are not the last survivors in the world. And they aren't prepared for the reality Blue's eyes are showing her.

The outsiders want in, and they're hungry.