When a sudden earthquake strands Celia's parents out of town, she finds herself on her own in a shaken city. She tries to reach out to other kids around her apartment building. Some of them, like the sad boy named Demetri, seem wary of letting her too close. The others call themselves Hunters. They claim the earthquake was caused by monsters only kids can see. And they think Celia is destined to save the city. Celia doesn't feel destined to save anything--but for the first time, she feels like maybe she's seeing things as they really are....