These two discoveries induced Mark to return to the Reef again, in quest of the stock. After laying another-plank at his bridge, he called every creature he had over into the new territory; for so great was the command he had obtained over even the ducks, that all came willingly at his call. As for Kitty, she was never more happy than when trotting at his side, accompanying him in his walks, like a dog.

Glad enough were the pigs, in particular, to obtain this new range. Here was everything they could want; food in thousands, sand to root on, fresh water to drink, pools to wallow in, and a range for their migratory propensities. Mark had no sooner set them at work on the sea-weed and shell-fish that abounded there, for the time being at least, than he foresaw he should have to erect a gate at his bridge, and keep the hogs here most of the time. With such a range, and the deposits of the tides alone, would have no great difficulty in making their own living. This would enable him to increase the number kept, which he had hitherto been obliged to keep down with the most rigid attention to the increase.

Mark now set out, in earnest, on his travels. He was absent from the Reef the entire day. At one time, he thought he was quite two leagues in a straight line from the ship, though he had been compelled to walk four to get there. Everywhere he found large sheets of salt water, that had been left on the rocks, in consequence of the cavities in the latter. In several instances, these little lakes were near a mile in length, having the most beautifully undulating outlines. None of them were deep, of course, though their bottoms varied. Some of these bottoms were clean rock; others contained large deposits of mud; and others, again, were of a clean, dark-coloured sand. One, and one only, had a bottom of a bright, light-coloured sand. As a matter of course, these lakes, or pools, must shortly evaporate, leaving their bottoms bare, or encrusted with salt. One thing gave the young man great satisfaction. He had kept along the margin of the channel that communicated with the water that surrounded the Reef, and, when at the greatest distance from the crater, he ascended a rock that must have had an elevation of a hundred feet above the sea. Of course most of this rock had been above water previously to the late eruption, and Mark had often seen it at a distance, though he had never ventured through the white water near so far, in the dingui. When on its apex, Mark got an extensive view of the scene around him. In the first place, he traced the channel just mentioned, quite into open water, which now appeared distinctly not many leagues further, towards the north-west. There were a great many other channels, some mere ribands of water, others narrow sounds, and many resembling broad, deep, serpenting creeks, which last was their true character, being strictly inlets from the sea. The lakes or pools, could be seen in hundreds, creating some confusion in the view; but all these must soon disappear, in that climate.

Towards the southward, however, Mark found the objects of his greatest wonder and admiration. By the time he reached the apex of the rock, the smoke in that quarter of the horizon had, in a great measure, risen from the sea; though a column of it continued to ascend towards a vast, dun-coloured cloud that overhung the place. To Mark's astonishment he had seen some dark, dense body first looming through the rising vapour. When the last was sufficiently removed, a high, ragged mountain became distinctly visible. He thought it arose at least a thousand feet above the ocean, and that it could not be less than a league in extent. This exhibition of the power of nature filled the young man's soul with adoration and reverence for the mighty Being that could set such elements at work. It did not alarm him, but rather tended to quiet his longings to quit the place; for he who lives amid such scenes feels that he is so much nearer to the arm of God than those who dwell in uniform security, as to think less of ordinary advantages than is common.

Mark knew that there must have been a dislocation of the rocks, to produce such a change as that he saw to the southward. It was well for him it occurred there at a distance, as he then thought, of ten or fifteen miles from the Reef, though in truth it was at quite fifty, instead of happening beneath him. It was possible, however, for one to have been on the top of that mountain, and to have lived through the late change, could the lungs of man have breathed the atmosphere. Not far from this mountain a column of smoke rose out of the sea, and Mark fancied that, at moments, he could discern the summit of an active crater at its base.

After gazing at these astonishing changes for a long time, our young man descended from the height and retraced his steps homeward.