As for the appearance of the reefs, no naked rock was anywhere to be seen in this direction, though there were abundant evidences of the existence of shoals. As well as he could judge, Mark was of opinion that these shoals extended at least twenty miles in this direction, he having turned up fully five leagues without getting clear of them. At that distance from his solitary home, and out of sight of everything like land, did the young man eat his frugal, but good and nourishing dinner, with his jib-sheet to windward and the boat hove-to. The freshness of the breeze had induced him to reef, and under that short sail, he found the Bridget everything he could wish. It was now about the middle of the afternoon, and Mark thought it prudent to turn out his reef, and run down for the crater. In half an hour he caught a sight of the spars of the ship; and ten minutes later, the Summit appeared above the horizon.

It had been the intention of our young sailor to stay out all night, had the weather been promising. His wish was to ascertain how he might manage the boat, single-handed, while he slept, and also to learn the extent of the shoals. As the extraordinary fertility of the crater superseded the necessity of his labouring much to keep himself supplied with food, he had formed a plan of cruising off the shoals, for days at a time, in the hope of falling in with something that was passing, and which might carry him back to the haunts of men. No vessel would or could come in sight of the crater, so long as the existence of the reefs was known; but the course steered by the Rancocus was a proof that ships did occasionally pass in that quarter of the Pacific. Mark had indulged in no visionary hopes on this subject, for he knew he might keep in the offing a twelvemonth and see nothing; but an additional twenty-four hours might realize all his hopes.

The weather, however on this his first experiment, did not encourage him to remain out the whole night. On the contrary, by the time the crater was in sight, Mark thought he had not seen a more portentous-looking sky since he had been on the Reef. There was a fiery redness in the atmosphere that alarmed him, and he would have rejoiced to be at home, in order to secure his stock within the crater. From the appearances, he anticipated another tempest with its flood. It is true, it was not the season when the last occurred, but the climate might admit of these changes. The difference between summer and winter was very trifling on that reef, and a hurricane, or a gale, was as likely to occur in the one as in the other.

Just as the Bridget was passing the two buoys by which the ship-channel had been marked, her sail flapped. This was a bad omen, for it betokened a shift of wind, which rarely happened, unless it might be from six months to six months, without being the precursor of some sort of a storm. Mark was still two miles from the Reef, and the little wind there was soon came ahead. Luckily, it was smooth water, and very little air sufficed to force that light craft ahead, while there was usually a current setting from that point towards the crater. The birds, moreover, seemed uneasy, the air being filled with them, thousands flying over the boat, around which they wheeled, screaming and apparently terrified. At first Mark ascribed this unusual behaviour of his feathered neighbours to the circumstance of their now seeing a boat for the commencement of such an acquaintance; but, recollecting how often he had passed their haunts, in the dingui, when they would hardly get out of the way, he soon felt certain there must be another reason for this singular conduct.

The sun went down in a bank of lurid fire, and the Bridget was still a mile from the ship. A new apprehension now came over our hermit. Should a tempest bring the wind violently from the westward, as was very likely to be the case under actual circumstances, he might be driven out to sea, and, did the little craft resist the waves, forced so far off as to make him lose the Reef altogether. Then it was that Mark deeply felt how much had been left him, by casting his lot on that beautiful and luxuriant crater, instead of reducing him to those dregs of misery which so many shipwrecked mariners are compelled to swallow! How much, or how many of the blessings that he enjoyed on the Reef, would he not have been willing to part with, that evening, in order to secure a safe arrival at the side of the Rancocus! By the utmost care to profit by every puff of air, and by handling the boat with the greatest skill, this happy result was obtained, however, without any sacrifice.

About nine o'clock, and not sooner, the boat was well secured, and Mark went into his cabin. Here he knelt and returned thanks to God, for his safe return to a place that was getting to be as precious to him as the love of life could render it. After this, tired with his day's work, the young man got into his berth and endeavoured to sleep.

The fatigue of the day, notwithstanding the invigorating freshness of the breeze, acted as an anodyne, and our young man soon forgot his adventures and his boat, in profound slumbers. It was many hours ere Mark awoke, and when he did, it was with a sense of suffocation. At first he thought the ship had taken fire, a lurid light gleaming in at the open door of the cabin, and he sprang to his feet in recollection of the danger he ran from the magazine, as well as from being burned. But no cracking of flames reaching his ears, he dressed hastily and went out on the poop. He had just reached this deck, when he felt the whole ship tremble from her truck to her keel, and a rushing of water was heard on all sides of him, as if a flood were coming. Hissing sounds were heard, and streams of fire, and gleams of lurid light were seen in the air. It was a terrible moment, and one that might well induce any man to imagine that time was drawing to its close.

Mark Woolston now comprehended his situation, notwithstanding the intense darkness which prevailed, except in those brief intervals of lurid light. He had felt the shock of an earthquake, and the volcano had suddenly become active. Smoke and ashes certainly filled the air, and our poor hermit instinctively looked towards his crater, already so verdant and lively, in the expectation of seeing it vomit flames. Everything there was tranquil; the danger, if danger there was, was assuredly more remote. But the murky vapour which rendered breathing exceedingly difficult, also obstructed the view, and prevented his seeing where the explosion really was. For a brief space our young man fancied he must certainly be suffocated; but a shift of wind came, and blew away the oppressive vapour, clearing the atmosphere of its sulphurous and most offensive gases and odours. Never did feverish tongue enjoy the cooling and healthful draught, more than Mark rejoiced in this change. The wind had got back to its old quarter, and the air he respired soon became pure and refreshing. Had the impure atmosphere lasted ten minutes longer, Mark felt persuaded he could not have breathed it with any safety.

The light was now most impatiently expected by our young man. The minutes seemed to drag; but, at length, the usual signs of returning day became apparent to him, and he got on the bowsprit of the ship, as if to meet it in its approach. There he stood looking to the eastward, eager to have ray after ray shoot into the firmament, when he was suddenly struck with a change in that quarter of the ocean, which at once proclaimed the power of the effort which the earth had made in its subterranean throes. Naked rocks appeared in places where Mark was certain water in abundance had existed a few hours before. The sea-wall, directly ahead of the ship, and which never showed itself above the surface more than two or three inches, in any part of it, and that only at exceedingly neap tides, was now not only bare for a long distance, but parts rose ten and fifteen feet above the surrounding sea. This proved, at once, that the earthquake had thrust upward a vast surface of the reef, completely altering the whole appearance of the shoal! In a word, nature had made another effort, and islands had been created, as it might be in the twinkling of an eye.

Mark was no sooner assured of this stupendous fact, than he hurried on to the poop, in order to ascertain what changes had occurred in and about the crater. It had been pushed upward, in common with all the rocks for miles on every side of it, though without disturbing its surface! By the computation of our young man, the Reef, which previously lay about six feet above the level of the ocean, was now fully twenty, so many cubits having been, by one single but mighty effort of nature, added to its stature. The planks which led from the stern of the vessel to the shore, and which had formed a descent, were now nearly level, so much water having left the basin as to produce this change. Still the ship floated, enough remaining to keep her keel clear of the bottom.