Set at the time of the Chinese Boxer Rebellion of 1900. Theodore, the son of American missionaries, escapes when the rebels destroy his father’s settlement and falls in with a foul-mouthed female ex-music-hall star, now a plant-hunter.
They flee together into Tibet, and reach a major Tibetan temple. With his strict Calvinistic upbringing Theodore is at first repelled and horrified by lamaistic Buddhism, but eventually comes to terms with it.