The Harper Connelly "grave" series is my favorite among Charlaine Harris's several series. Its protagonist is a young woman, Harper, who survived a lightning strike at age fifteen, and later discovered she could sense where dead bodies lay. She's not psychic, nor can she see ghosts; but she knows when she is near a dead body, and with practice she has developed the ability to also "see" how they died. When she turned eighteen, she and her step brother, Tolliver, began to advertise her ability, and now make a decent living helping people find the bodies of missing people, including occasionally working for law enforcement.
The small town of Sarne, Arkansas, is the site of Harper and Tolliver's latest job. A young man was found dead, an apparent suicide; only later did anyone realize a young girl was also missing. Harper starts at the scene of the boy's death, and within a short time, she locates the body of Teenie--a young woman whom Harper "sees" running from some threat, then being shot in the back. She also learns the boy did not kill himself. Both were murdered.
The local sheriff is anything but welcoming, and it is quickly apparent that all of Sarne's power brokers are related by either blood or marriage, with secrets they fear Harper may discover. When Tolliver is arrested on a trumped up charge, Harper must try to solve the murders so she can retrieve Tolliver and leave before the murderer decides to kill them to protect his secret.