Chance willed that it should be one of the loveliest evenings for which the moon ever furnished light in the tropics. That luminary had just risen from the dark waves and was beginning to cast a long band of quick-silver on the sea; but its rays did not shine into the gorge, and the edges of the basin reflected only the trembling gleam of a few stars. Even the lemon-trees on the higher slopes of the mountain were not covered with the pale diamonds with which the moon sprinkles their polished, brittle leaves. The ebony trees and the tamarinds murmured softly in the darkness; only the bushy tufts at the summit of the huge palm-trees, whose slender trunks rose a hundred feet from the ground, shone with a greenish tinge in the silvery beams. The sea-birds were resting quietly in the crevices of the cliffs, and only a few blue pigeons, concealed behind the projections of the mountain, raised their melancholy, passionate note in the distance. Lovely beetles, living jewels, rustled gently in the branches of the coffee-trees, or skimmed the surface of the lake with a buzzing noise, and the regular plashing of the cascade seemed to exchange mysterious words with the echoes on its shores. The two solitary promenaders ascended by a steep and winding path to the top of the gorge, to the spot where the torrent plunges down in a white column of vapor to the foot of the precipice. They found themselves on a small platform admirably adapted to their purpose. A number of convolvuli hanging from the trunks of trees formed a natural cradle suspended over the waterfall. Sir Ralph, with wonderful self-possession, cut away several branches which might impede their spring, then took his companion's hand and drew her to a seat beside him on a moss-covered rock from which in the daytime the beautiful view from that spot could be seen in all its wild and charming grandeur. But at that moment the darkness and the dense vapor from the cascade enveloped everything and made the height of the precipice seem immeasurable and awe-inspiring. "Let me remind you, my dear Indiana," said Ralph, "that the success of our undertaking requires the greatest self-possession on our part. If you jump hastily in a direction where, because of the darkness, you see no obstacles, you will inevitably bruise yourself on the rocks and your death will be slow and painful; but, if you take care to throw yourself in the direction of the white line which marks the course of the waterfall you will fall into the lake with it, and the water itself will see to it that you do not miss your aim. But, if you prefer to wait an hour, the moon will rise high enough to give us light." "I am willing," Indiana replied, "especially as we ought to devote these last moments to religious thoughts."