ON AUGUST 29, 2005, Hurricane Katrina had reached maximum strength as the storm surged through the city of New Orleans. Driven by the hurricane force winds, a heavy metal trash barrel crashed into the door of an above ground burial tomb at St. Louis No. 1 cemetery, ripping the hinges from the stone. Andrea, Sonja and Nicholas, a terrifying menage trois from a rural valley outside of Sighisoara, Romania, escaped from the tomb and the secret U.S...