The madwoman, her lost daughter, the train
The child narrator Yingzi befriends Xiuzhen, a neighborhood 'madwoman' who mourns a student lover who never returned and the newborn daughter taken from her. Yingzi realizes her playmate Niuer, an adopted girl beaten by her foster parents, is that lost daughter, and reunites them. Mother and daughter flee in the rain to find the father and are killed by a train, so the child's act of kindness completes a family and destroys it in the same night.
