When I had waited a long time very patiently without hearing him lie down, I resolved to open a little -- a very, very little crevice in the lantern. So I opened it -- you cannot imagine how stealthily, stealthily -- until at length a single dim ray like the thread of the spider shot out from the crevice and fell upon the vulture eye.
It was open, wide, wide open, and I grew furious as I gazed upon it. I saw it with perfect distinctness -- all a dull blue with a hideous veil over it that chilled the very marrow in my bones, but I could see nothing else of the old man's face or person, for I had directed the ray as if by instinct precisely upon the damned spot.
And now have I not told you that what you mistake for madness is but over-acuteness of the senses? now, I say, there came to my ears a low, dull, quick sound, such as a watch makes when enveloped in cotton. I knew that sound well too. It was the beating of the old man's heart. It increased my fury as the beating of a drum stimulates the soldier into courage.