To Kill A Mockingbird is a novel written by Harper Lee. In the novel, Lee reveals the situation happened in Maycombcity and depicts Arthur (Boo) Radley, a mysterious hermit who is recognized as a madman by citizens. My paper is going to arguefor Boo that he is not a madman, being locked out by his father; instead, he chooses to be a hermit due to the awfulness of the city:its prevalent gossip, its racial inequality and its lawless policies.