** LOTR - Frodo and the mirror

The Ring that hung upon its chain about his neck grew heavy, heavier than a great stone, and his head was dragged downwards. The Mirror seemed to be growing hot and curls of steam were rising from the water. He was slipping forward.

'Do not touch the water!' said the Lady Galadriel softly.

--FotR, "The Mirror of Galadriel"