Indeed, I thought that this halt would mark the end of our walk; but I was mistaken, for instead of returning to the _Nautilus_, we continued our bold excursion. The ground was still on the incline; its declivity seemed to be getting greater and to be leading us to lower depths. It must have been about three o'clock when we reached a narrow valley between high walls; thanks to the perfection of our apparatus, we were far below the depth to which divers ever penetrate. At our great depth the darkness thickened; ten paces away not an object was visible. I was groping my way when I suddenly saw a brilliant white light flash out ahead; Captain Nemo had turned on his electric torch. The rest of us soon followed his example, and the sea, lit by our four lanterns, was illuminated for a circle of forty yards. Captain Nemo still plunged onward into the dark reaches of the forest, whose trees were getting scarcer at every step. At last, after about four hours, this marvelous excursion came to an end. A wall of superb rocks rose before us, a heap of gigantic blocks, an enormous granite shore. It was the prop of the island of Crespo. It was the earth! The return now began. Captain Nemo resumed his place at the head of his little band and directed the course without hesitation. I thought we were not following the road we had come, on our return to the _Nautilus_. The new way was very steep and consequently very painful; we approached the surface of the sea rapidly, but this ascent was not so sudden as to cause a too rapid relief from the pressure of the water, which would have been dangerous. Very soon light reappeared and grew, and as the sun was low on the horizon, the refraction edged all objects with a [v]spectral ring. At ten yards deep, we walked amid a shoal of little fishes, more numerous than the birds of the air; but no [v]aquatic game worthy of a shot had as yet met our gaze. Suddenly I saw the captain put his gun to his shoulder and follow a moving object into the shrubs. He fired; I heard a slight hissing and the creature fell stunned at some distance from us. It was a magnificent sea-otter, five feet long and very valuable. Its skin, chestnut-brown above and silvery underneath, would have made one of those beautiful furs so sought after in the Russian and Chinese markets. I admired the curious animal, with its rounded head ornamented with short ears, its round eyes, and white whiskers like those of a cat, and its webbed feet and nails and tufted tail. This precious beast, hunted and tracked by fishermen, has now become very rare and has sought refuge in the northern parts of the Pacific.