In 1941, in Zlochow, Poland, where Ephraim Sten lived with his family, the SS rounded up Jews into ghettoes. Thirteen-year old Sten, who had started a diary, fled with his mother to the countryside where a Catholic-Ukrainian couple hid them and several relatives. Sten's account of those years was harrowing. Fifty years later he had the diary translated into Hebrew for his children and responded to each of his own youthful entries. "For decades," he...