William Britan, a well-known American children's book writer, has published two popular novels "Global Money" and "Devil's Donkey". His representative works include "Wish of Five Cent Dollars".Strong is a high school science teacher. Every day at 12:15 noon, he stood in front of the classroom window and saw Miss Pindrick walking through the school entrance on time and went to a nearby food store to buy things. Miss Pindrick is more than ninety years old. She used to be a history teacher in this high school. After retiring, she was hiding in a small wooden house in the corner of the town. She sometimes comes to school to visit old friends, but she does not welcome anyone to visit her house.