"But, master, wouldn't you do well to take some rest yourself, as there's no danger close on us just now?" insisted poor Joe. "No, thank you, my good fellow, I prefer to keep awake. We are not moving, and should circumstances not change, we'll find ourselves to-morrow in exactly the same place." "Good-night, then, sir!" "Good-night, if you can only find it so!" Kennedy and Joe stretched themselves out under their blankets, and the doctor remained alone in the immensity of space. However, the huge dome of clouds visibly descended, and the darkness became profound. The black vault closed in upon the earth as if to crush it in its embrace. All at once a violent, rapid, incisive flash of lightning pierced the gloom, and the rent it made had not closed ere a frightful clap of thunder shoo