Answer:
This is basically asking what the main idea, or the main lesson learned of the novel is.
Explanation:
The definition of theme, by the book in this context is, "the subject of talk, a piece of writing, a person's thoughts, or an exhibition"
Mr. Walter Cunningham and a cluster of his companions have all gone to the prison to attempt to lynch Tom Robinson before his trial. They are beginning to undermine Atticus to attempt to get him off the beaten path when Jem and Scout arrive. Scout diffuses the energy of the posse without realizing that she is doing it.
The people will have journeyed to the center of the earth. I think this because it is the title. This is fantasy because the center of the earth is too hot to travel to. The people will probably get burnt next.