On reaching the little bay or harbour it was found much as they had left it, save that the rocks and bushes around were thickly covered with dust, and their boat was gone.
"Strange! at such a time one would scarcely have expected thieves to come here," said the hermit, looking slowly round.
"No t'ief bin here, massa," said Moses, looking over the side of the canoe. "I see de boat!"
He pointed downwards as he spoke, and on looking over the side they saw the wreck of the boat at the bottom, in about ten feet of water, and crushed beneath a ponderous mass of lava, which must have been ejected from the volcano and afterwards descended upon the boat.
The destruction of the boat rendered it impossible to remove any of the property of the hermit, and Nigel now saw, from his indifference, that this could not have been the cause of his friend's anxiety and determination to reach his island home in spite of the danger that such a course entailed. That there was considerable danger soon became very obvious, for, having passed to some extent at this point beyond the shelter of the cliffs of Rakata, and come partly into view of the other parts of the island, the real extent of the volcanic violence burst upon Nigel and Moses as a new revelation. The awful sublimity of the scene at first almost paralysed them, and they failed to note that not only did a constant rain of pumice dust fall upon them, but that there was also a pretty regular dropping of small stones into the water around them. Their attention was sharply aroused to this fact by the fall of a lump of semi-molten rock, about the size of a cannon shot, a short distance off, which was immediately followed by not less than a cubic yard of lava which fell close to the canoe and deluged them with spray.
"We must go," said the hermit quietly. "No need to expose ourselves here, though the watching of the tremendous forces that our Creator has at command does possess a wonderful kind of fascination. It seems to me the more we see of His power as exerted on our little earth, the more do we realise the paltriness of our conception of the stupendous Might that upholds the Universe."
While he was speaking, Van der Kemp guided the canoe into its little haven, and in a few minutes he and Moses had carried it into the shelter of the cave out of which Nigel had first seen it emerge. Then the lading was carried up, after which they turned into the track which led to the hermit's home.
The whole operation may be said to have been performed under fire, for small masses of rock kept pattering continually on the dust-covered ground around them, causing cloudlets, like smoke, to spring up wherever they struck. Nigel and Moses could not resist glancing upward now and then as they moved quickly to and fro, and they experienced a shrinking sensation when a stone fell very near them, but each scorned to exhibit the smallest trace of anxiety, or to suggest that the sooner they got from under fire the better! As for Van der Kemp, he moved about deliberately as if there was nothing unusual going on, and with an absent look on his grave face as though the outbursts of smoke, and fire, and lava, which turned the face of day into lurid night, and caused the cliffs to reverberate with unwonted thunders, had no effect whatever on his mind.
A short walk, however, along the track, which was more than ankle-deep in dust, brought them under the sheltering sides of Rakata, up which they soon scrambled to the mouth of their cave. Here all was found as they had left it, save that the entrance was knee-deep in pumice dust.
And now a new and very strange sensation was felt by each of them, for the loud reports and crackling sounds which had assailed their ears outside were reduced by the thick walls of the cave to a continuous dull groan, as it were, like the soft but thunderous bass notes of a stupendous organ. To these sounds were added others which seemed to be peculiar to the cave itself. They appeared to rise from crevices in the floor, and were no doubt due to the action of those pent-up subterranean fires which were imprisoned directly, though it may be very far down, under their feet. Every now and then there came a sudden increase of the united sounds as if the "swell" of the great organ had been opened, and such out-gushing was always accompanied with more or less of indescribable shocks followed by prolonged tremors of the entire mountain.