Since the days of Coronado, explorers have been captivated by the search for Quivira, the fabled Lost City of Gold. Now, guided by a mysterious letter, archaeologist Nora Kelly is about to remount an expedition her father conducted 16 years earlier -- before mysteriously vanishing in the remote canyon country of southeast Utah. For her, it is a journey that could solve numerous mysteries, personally and professionally -- or it could be the last trip of her life.