A missing persons caseâand its three-year-old witnessâreunites a former couple in the first romantic suspense thriller in the Without a Trace series. 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 havenât healed. But for the childâs sakeâand her motherâsâthey must join forces to uncover just what Sarah saw.