Usher's madness begins to increase because he can hear the sound of Madeline below.
Even though his sister is buried in the basement, he can constantly hear her scratching her coffin. He was tortured by these sounds until the protagonist came to visit him so he could share his troubles with him. Usher is afraid of his 'undead' sister and of dying himself, which is why he grows crazier and crazier by the day, until he is finally killed by his own sister in the end.
Answer:
I'd really have to see the story, but your answer is most likely plot or dialogue.
Explanation:
In most pieces of literature, the theme/lesson is shown through things the characters say ( dialogue ), or simply by what happened ( plot ).
<span>The narrator means to characterize her neighborhood by describing its audioscape, the way it sounds as you’re walking through. Unlike other more prosperous neighborhoods where the background includes people laughing and talking, cars driving buying and perhaps sidewalk salesmen, the narrator’s neighborhood is quiet – no sounds of commerce, children playing, not even voices talking as the people wait for things to improve.</span>
Wouldn’t it be mood? not forsure but i think so