The Tell-Tale Heart Enamel Pin

"I swung the chair upon which I had been sitting, and grated it upon the boards, but the noise arose over all and continually increased. It grew louder—louder—louder! And still the men chatted pleasantly, and smiled. Was it possible they heard not? ...no, no! They heard!—they suspected!—they knew!—they were making a mockery of my horror! ...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!'"

(from "The Tell-Tale Heart" by Edgar Allan Poe)