The Locket — H. Allen Mann

Born in Thailand, two Amer-Asian children experience tragedy early in their lives. Bound for Singapore, their boat is attacked by pirates and they are cast at sea. Rescued by an army deserter desperate to restore his honor, they find themselves in the midst of the Cambodian Holocaust, needing help from a hardened young widow, a Khmer Rouge hunter and a pampered teenager. After a harrowing escape to a Thai refugee camp, the children are adopted by an American couple; and ten years later, in a startling conclusion, learn the strange truth about their identities hidden in a gold locket.