The only witness when a single mother mysteriously vanishes? Her three-year-old daughter. FBI agent Sam Pierce needs to question little Sarah. Yet child psychologist Jocelyn Gold will barely let him near the girl. Or herself. The tragic conclusion to a kidnapping case broke Sam and Jocelyn apart years before, and their hearts still haven't healed. But for the child's sake--and her mother's--they must join forces to uncover just what Sarah saw.