Kansas-born Pauline Benton (1898-1974) was encouraged by her father, one of America's earliest feminist male educators, to reach for the stars. Instead, she reached for shadows. In 1920s Beijing, she discovered shadow theatre (piyingxi), a performance art where translucent painted puppets are manipulated by highly trained masters to cast coloured shadows against an illuminated screen. Finding that this thousand-year-old forerunner of motion pictures was declining in China, Benton believed she could save the tradition by taking it to America. Mastering the male-dominated art form in China,...