These Ancient Bones by Heather Graham

The X-Files meets Dan Brown in this suspenseful tale of dark magic, ancient curses, and modern murder, as two agents with unusual talents investigate a series of sensational crimes in the historic city of St. Augustine, Florida. 

The case is sensational. Whistle-blower investigative journalist George Maynard has been killed in his St. Augustine home, his body so badly burned the morgue is needed to verify his identity. Paranormal investigator Shelly Mahoney has been transferred to a special unit to help law enforcement. Off the books, the unit is called the Krewe of Hunters and deals with “strange” cases.

At the murder scene with federal agent Grant Markham, Shelly makes an odd discovery: a stone etched with what appears to be a curse that invokes flames. If Shelly can use her ability to summon the dead—providing they have remained behind—she may unearth what happened.

Grant, too, has an unique ability. By holding the hand of the recently deceased, he can see what has happened to them. Yet in this case, neither of their gifts is of any help. As they set out to question those who might have had a motive, they also study ancient “curse tablets”—often used in the Greco-Roman world to cause death or warfare.

What ensues is a shocking discovery by the medical examiner and a search that takes the team to Italy where a similar murder may reveal the creators of the mystical tablets—made deadly with a little human assistance. But soon, the danger is closer than ever—because the target is Shelly . . .