|THEY had been sleeping on a soft soil or decayed vegetable matter, the sight of which had drawn from M. Mifroid the remark that it was a good omen for the near future. Their travels up to the present had been without incident, except for some differences of opinion between them. The subterranean galleries, lit up by the electric lamps, were sometimes vast, sometimes straight, sometimes rounded out like the vault of a cathedral, then square and regular, and so narrow that they had to crawl on their knees to get through. They had by this time become silent, except for a remark or two upon the variety of the strata they were passing through. Here was rock, here clay, here sand, and so on. It could not, however, last much longer. For forty-eight hours they had been walking, without coming across any water. M. Mifroid, however, hoped on, and we will soon see how justified he was. He hoped at least to come across some water or vegetation. They estimated it to be about four o’clock in the afternoon, when Théophraste rose, and, tightening his belt, prepared to start on another tramp. This time he did not speak of his hunger or thirst, but walked on in that silence which weakness brings on men. They had been walking about an hour when it was noticed that the temperature had become much higher, and they both involuntarily took off their coats. Soon the perspiration began to pour off their foreheads, and they began to wonder how this change could have come about. Were they going toward the center of the earth? How could it be accounted for? In two hours the temperature had risen from 60 to 90 degrees Fahrenheit. M. Mifroid knew of some galleries 79 meters below the ground, but who could estimate what depth they were at now? Their electric lamps spread their brilliancy around them as they advanced, now discussing the cause of this phenomenon. Suddenly the walls of the galleries spread out, and they found themselves in a cave of such large dimensions that even with their strong lights they could not see the farther ends. What was their joy and amazement when they found before them a beautiful lake, the banks of which were covered with a thick carpet of moss, and in the crystal transparency of which they saw fish with beautifully colored scales. The fish had no eyes, and did not appear timid. They disported themselves in the water, coming quite close to where the two astonished men stood. They could easily catch them by leaning over. A flock of ducks were swimming about in the enchanted water. M. Théophraste wept with joy on seeing this wonderful sight, and cried out softly, for he was afraid of disturbing them: “My friend, what did I say? Isn’t this better than all earthly scenes?”