In the south Yunnan region of China, how many unknown secrets are hidden in the middle of the deep mountains and dense forests. Pu Po, an old Yi traditional Chinese medicine practitioner and vice president of the county hospital, and Fang Wen, his unmarried son-in-law, who is a doctor, are walking...
The government sends caravans to Miao villages periodically to provide goods which facilitate the folks. A detachment protects the caravans from robbery.
