A New York Times Bestselling Author Emma Sharpe is a handpicked member of a small Boston-based FBI team. For the past decade she and her art detective grandfather have trailed an elusive serial art thief who sends a replica of a Celtic cross after every theft. Now a message leads Emma to a small island in Boston Harbor, where she finds the body of a woman holding a small, cross-inscribed stone. And Emma?s fiancé, FBI deep-cover agent Colin Donovan, is troubled that she?s gone off to the island alone.,