You find yourself underwater, cold and disoriented. The current is pushing you this way and that, making any sense of direction completely meaningless. The water is dark enough that you can hardly see any light from above or even your own hand. Your ears fill with a deep pressure as your entire body shivers, both from the cold and fear. You try to look around for any sense of direction, but all that is available are small blurry flashes of light and movement in the water around you.