The Mercy Series (3-Book Bundle)

Now, here are the three novels in Stewart's pulse-stopping series about the Mercy Street Foundation, an elite missing-persons unit able to go where the federal and local law enforcement cannot. 

MERCY STREET
On a balmy spring evening, four high school seniors–three boys and a girl–enter a park in the small Pennsylvania city of Conroy. The next morning, two of the boys are found shot to death, and the girl and the third boy are gone. After three weeks with no leads and no sign of either of the two missing teenagers, the chief of police begins to wonder if they too were victims. But with no other suspects, the authorities conclude that one of these kids was the shooter.

CRY MERCY 

After Ann Nolan, a California beat cop, adopts the daughter of a notorious drug dealer, the ruthless father vows to take back his only child. In response, Ann flees across the country, changes her name, and starts a new life as an investigator for the Mercy Street Foundation, the billionaire-endowed organization dedicated to finding missing persons. As Emme Caldwell, she takes the lead on the Foundation's first case: Nineteen-year-old Belinda Hudson disappeared from her sorority house leaving behind only one cryptic clue. Retracing the vanished student's steps leads Emme to Heaven's Gate, a fertility clinic, and the mysterious Donor 1735.

ACTS OF MERCY

Former FBI agent Sam Delvecchio brings the keen skills of a profiler to his new position as a Mercy Street Foundation operative–and not a moment too soon. His first assignment, the cold-case murder of a local soup kitchen volunteer, has all the telltale signs of a serial killer’s work. That grim suspicion is confirmed when FBI agent Fiona Summers shares the details of two other killings with eerie similarities to Sam’s case: The bodies in all three cases have been carefully posed. And when a fourth victim is discovered, the two investigators realize they’re pursuing the same twisted quarry.