"Suddenly Sam saw Gollum's long hands draw upwards to his mouth; his white fangs gleamed, and then snapped as they bit. Frodo gave a cry, and there he was, fallen upon his knees at the chasm's edge. But Gollum, dancing like a mad thing, held aloft the ring, a finger still thrust within its circle. It shone now as if verily it was wrought of living fire."
- J.R.R. Tolkien, 'The Lord of the Rings', Book VI, CH. 3, 'Mount Doom'