"Let us lower the sail," I said, "it is only an act of common prudence." "No--no," cried my uncle, in an exasperated tone, "a hundred times, no. Let the wind strike us and do its worst, let the storm sweep us away where it will--only let me see the glimmer of some coast--of some rocky cliffs, even if they dash our raft into a thousand pieces. No! keep up the sail--no matter what happens." These words were scarcely uttered when the southern horizon underwent a sudden and violent change. The long accumulated vapors were resolved into water, and the air required to fill up the void produced became a wild and raging tempest. It came from the most distant corners of the mighty cavern. It raged from every point of the compass. It roared; it yelled; it shrieked with glee as of demons let loose