Muley is a friend of the Joad family. Like the Joads, Muley's family was forced to leave their house and their land. While his wife and children chose to head west to California, Muley is too proud to follow them. He chooses to stay on his land. However, the landowners are so tough and cruel that Muley must hide from them most of the time. He sleeps in abandoned homes or in secret hiding places by the river or in the fields. He creates mischief and tries his best to make the landowners' lives difficult. He wonders if he is going crazy.