Book excerpt: Beyond the killing fields and the temples of Angkor is Cambodia: a country with a genocidal past and a wide, open smile. A frontier land where anything is possible--at least for the tourists. Three backpackers board a train, ignoring the danger signs--and find themselves in the hands of the Khmer Rouge. Elderly sisters are visited by their vampire niece from Australia and set out to cure her. A singer creates a sensation in swinging 1969, on the eve of an American bombing campaign. These are bold and haunting.