A dead man has investigators stumped. His death mirrors the work of a serial killer who'd dropped off the face of the earth and is believed to be dead. A visit from a strange new ghost forces Cassie's involvement. Unsure of the entity's purpose for haunting her, Cassie is both intrigued and terrified at its potential implications. In a desperate race against the clock, Cassie must determine if the spirit guiding her is friend or foe. She must listen carefully to the whispers of bones if she hopes to solve the crime and remain among the living.