"Photojournalist Siobhan Walsh has been searching for two sisters who disappeared two years ago in Mexico, so when she receives a call from a priest in Texas about an abandoned baby holding a locket with her name, she calls her friends in the FBI for help. The infant obviously belongs to one of the sisters, but how did she end up in Texas? And why did she abandon her newborn? Lucy Kincaid and her mentor, Supervisory Special Agent Noah Armstrong, track the missing girls and uncover a human-trafficking organization that leads to a seedy underworld in which nothing is as it seems. The bad guys seem to stay two steps ahead of them, leaving behind a trail of dead bodies and Lucy with more questions than answer"--P.  of cover.