The haunting at Moon Basin started when an explosion in the mine killed sixteen people. The disaster made it impossible to live in town, with underground fires spewing ash into the sky. Life in New Basin is just as fraught: the ex-mining town relies on its haunted reputation to bring in tourists, but there is more truth to the rumors than most are willing to admit, and the mine still has a hold on everyone who lives there. Clem and Nina have been best friends forever, and perhaps something more. Their circle opens up for a strange girl named Lisey with a knack for training crows, and Piper, whose father is fascinated with the mine in a way that is anything but ordinary. As new phenomena-- sleepwalking, night terrors, voices that only residents can hear-- nobody can get to the bottom of what's really going on. Which is why the girls decide to enter the mine themselves.