PATHOLOGY

Detailed explanation-1: -For seven nights, the narrator sneaks into the Old Man’s room to observe him.

Detailed explanation-2: -What does the narrator do every night that he believes is proof of his sanity? Every night at midnight he would go into the old man’s room and look at his eyes.

Detailed explanation-3: -On the eighth night, the narrator kills the old man, cuts up the body, and hides it. The narrator hears a knock at the door and finds three policemen who are investigating the complaint of a suspicious neighbor. The narrator invites them in and shows them around. Eventually the narrator begins to hear a noise.

Detailed explanation-4: -The narrator continuously checks on the old man at midnight for 7 nights. On the eighth night, the lantern light lands on the open eye of the old man. The narrator becomes enraged. Then the narrator thinks that the neighbors will hear the old man’s heart beating (but it is really HIS heart beating).