Refer to "The Tell-Tale Heart" for a complete version of this story. Which passage from "The Tell-Tale Heart" best emphasizes the unreliability of the narrator? When I had made an end of these labors, it was four o'clock --still dark as midnight. As the bell sounded the hour, there came a knocking at the street door. I went down to open it with a light heart, --for what had I now to fear? True! --nervous --very, very dreadfully nervous I had been and am; but why will you say that I am mad? The disease had sharpened my senses --not destroyed --not dulled them. O He had never wronged me. He had never given me insult. For his gold i had no desire. I think it was his eye! yes, it was this! He had the eye of a vulture --a pale blue eye, with a film over it. Whenever it felt upon me, my blood ran cold; and so by degrees --very gradually --I made up my mind to take the life of the old man, and thus rid myself of the eye forever. O I kept quite still and said nothing. For a whole hour I did not move a muscle, and in the meantime I did not hear him lie down. He was still sitting up in the bed listening; --just as I have done, night after night, hearkening to the death watches in the wall.