However, when the police show up to investigate the scream they heard, the narrator hears the old man's heart beating harder and harder. The narrator realizes that he had no real reason to kill the old man he considered his friend and cannot accept this fact. Then the narrator tells the police what he did. This example is that of an obsession directly applied to the destructive power of human nature, but it is not always that simple. Another example of the destructive power of human nature can be seen in Poe's "The Cask of Amontillado", as first printed in Godey's Magazine and Lady's Book. (714) in this story, Montresor is not obsessed with direct murder but with revenge on Fortunato for actions that are not clearly stated. The only thing the story says is: "I bore Fortunato's thousand wounds as best I could, but when he dared to insult me, I swore revenge." …At last I will be avenged…” He then says that he “…must not only punish but punish with impunity. » This is the exact root of the destructive power of human nature. He then connects his obsession with the concept of revenge to the concept of crossing the line and getting away with it. Montresor leaves