Eighteen-year-old Ariel Moravec doesn't expect much from a summer with the grandfather she hasn't met in years: a respite from her dysfunctional family, perhaps, and a brief delay before she has to face an uncertain future.

A few days after her arrival, however, she learns that her grandfather is an occult investigator tasked with hunting down the perils of the Unseen -- and he offers Ariel the chance to assist him on a case.

Strange forces are stirring in the little farm town of Criswell, where a famous witch lived in colonial times. Has old Hepzibah Rewell's curse awakened, or is the evil magic the work of someone living?

Caught in a tightening net of bitter local rivalries and strange happenings, Ariel has to find out...or her own life may be at risk.