Upon the eighth night I was more than usually cautious in opening the door. A watch's minute hand moves more quickly than did mine. Never before that night had I felt the extent of my own powers, of my sagacity. I could scarcely contain my feelings of triumph. To think that there I was opening the door little by little, and he not even to dream of my secret deeds or thoughts.
But anything was better than this agony! Anything was more tolerable than this derision! I could bear those hypocritical smiles no longer! I felt that I must scream or die! -- and now -- again -- hark! louder! louder! louder! LOUDER! --
"Villains!" I shrieked, "dissemble no more! I admit the deed! -- tear up the planks! -- here, here! -- it is the beating of his hideous heart!"
The Tell-Tale Heart
Edgar Allan Poe