Hours after hiring Mac McClellan to investigate the supposed suicide of her archaeologist brother, single-mom Jessie dies in a car accident. Jessie had just showed Mac artifacts and a copy of a map Jake found, items that indicate Hernando de Soto and his explorers might have camped on Five Mile Island during the winter of 1539-1540. Studying the map, Mac determines the site lies in the middle of a planned resort, The Dunes. Declaring the area an historic...