Becky Thatcher is also presented more completely in Chapter 6. Becky is a sweet, somewhat shy girl who has not had a boyfriend before Tom. She is also quick to anger, jealous, and slow to forgive Tom for a supposed wrong. But after some disagreements and after Tom "sacrifices" himself and takes her punishment (these events occur later in the story), Becky and Tom will become devoted friends, especially during the episode in the cave.
This chapter also presents Twain's use of superstition, a theme that is treated lightly here, but one that gains thematic importance later in the novel. The superstitions become important to the novel because they move the adventures forward. For example, the discussion of how to remove warts leads the two boys to the graveyard at midnight where they witness the murder of Dr. Robinson, and thus create one of the central adventures of the novel.
