Describe the setting of the story.

The initial description of the setting is of an idyllic, small town. The sun is shining after a heavy rain the previous night. So, the town has a washed clean, pure aspect. "Miss Strangeworth took deep breaths, and thought that there was nothing in the world like a fragrant summer day." 

Miss Strangeworth chats with different people in town. These are amiable conversations, mostly small talk, but Miss Strangeworth thinks of a small criticism for each person. But outwardly, this presents the setting as a friendly small town where most everyone knows each other. 

Miss Strangeworth's own house is on "Pleasant" Street. The house is neat and the lawn is lined with roses. Everything is pleasant and ordered. The descriptions of the neat, ordered house and the "fresh and clear" look of the town following the night's rain fit Miss Strangeworth's perception of herself. She has audaciously assumed the responsibility of keeping her town clean and clear of sin. She writes her anonymous letters in order to keep the town this way. Miss Strangeworth thinks of it as "her" town and takes the self-righteous position of being the town's conscience.