When Mao's Cultural Revolution took hold in China in June 1966, Ange Zhang was thirteen years old. His father was a famous writer. Shortly after the revolution began, many of Ange's classmates joined the Red Guard, Mao's youth movement, and they drove their teachers out of the classrooms. But in the weeks that followed, Ange discovered that his father's fame as a writer now meant that he was a target of the new regime. When his father was arrested,...