The words were hardly out of his mouth when a sudden change took place in the southern sky. The piled-up vapours condense into water; and the air, put into violent action to supply the vacuum left by the condensation of the mists, rouses itself into a whirlwind. It rushes on from the farthest recesses of the vast cavern. The darkness deepens; scarcely can I jot down a few hurried notes. The helm makes a bound. My uncle falls full length; I creep close to him. He has laid a firm hold upon a rope, and appears to watch with grim satisfaction this awful display of elemental strife.