“Advance a step, and you're a dead man, villain!” screamed Jack, his voice almost cracked with rage, and the effort he made to menace.

Spike muttered an oath too revolting for our pages; but it was such a curse as none but an old salt could give vent to, and that in the bitterness of his fiercest wrath. At that critical moment, while Rose was swelling with indignation and wounded maiden pride, almost within reach of his arms, looking more lovely than ever, as the flush of anger deepened the colour in her cheeks, a fresh and deep report from one of the guns of the sloop-of-war drew all eyes in her direction. The belching of that gun seemed to be of double the power of those which had preceded it, and jets of water, that were twenty feet in height, marked the course of the formidable missile that was projected from the piece. The ship had, indeed, discharged one of those monster-cannons that bear the name of a distinguished French engineer, but which should more properly be called by the name of the ingenious officer who is at the head of our own ordnance, as they came originally from his inventive faculties, though somewhat improved by their European adopter. Spike suspected the truth, for he had heard of these “Pazans,” as he called them, and he watched the booming, leaping progress of the eight-inch shell that this gun threw, with the apprehension that unknown danger is apt to excite. As jet succeeded jet, each rising nearer and nearer to his brig, the interval of time between them seeming fearfully to diminish, he muttered oath upon oath. The last leap that the shell made on the water was at about a quarter of a mile's distance of the islet on which his people had deposited at least a hundred and fifty barrels of his spurious flour:-thence it flew, as it might be without an effort, with a grand and stately bound into the very centre of the barrels, exploding at the moment it struck. All saw the scattering of flour, which was instantly succeeded by the heavy though slightly straggling explosion of all the powder on the island. A hundred kegs were lighted, as it might be, in a common flash, and a cloud of white smoke poured out and concealed the whole islet, and all near it.

Rose stood confounded, nor was Jack Tier in a much better state of mind, though he still kept the pistol levelled, and menaced Spike. But the last was no longer dangerous to any there. He recollected that piles of the barrels encumbered the decks of his vessel, and he rushed to the boat, nearly frantic with haste, ordering the men to pull for their lives. In less than five minutes he was alongside, and on the deck of the Swash—his first order being to—“Tumble every barrel of this bloody powder into the sea, men. Over with it, Mr. Mulford, clear away the midship ports, and launch as much as you can through them.”

Remonstrance on the part of Se¤or Montefalderon would have been useless, had he been disposed to make it; but, sooth to say, he was as ready to get rid of the powder as any there, after the specimen he had just witnessed of the power of a Paixhan gun.

Thus it is ever with men. Had two or three of those shells been first thrown without effect, as might very well have happened under the circumstances, none there would have cared for the risk they were running; but the chance explosion which had occurred, presented so vivid a picture of the danger, dormant and remote as it really was, as to throw the entire crew of the Swash into a frenzy of exertion.

Nor was the vessel at all free from danger. On the contrary, she ran very serious risk of being destroyed, and in some degree, in the very manner apprehended. Perceiving that Spike was luffing up through one of the passages nearest the reef, which would carry him clear of the group, a long distance to windward of the point where he could only effect the same object, the commander of the sloop-of-war opened his fire in good earnest, hoping to shoot away something material on board the Swash, before she could get beyond the reach of his shot. The courses steered by the two vessels, just at that moment, favoured such an attempt, though they made it necessarily very short-lived. While the Swash was near the wind, the sloop-of-war was obliged to run off to avoid islets ahead of her, a circumstance which, while it brought the brig square with the ship's broadside, compelled the latter to steer on a diverging line to the course of her chase. It was in consequence of these facts, that the sloop-of-war now opened in earnest, and was soon canopied in the smoke of her own fire.

Great and important changes, as has been already mentioned, have been made in the armaments of all the smaller cruisers within the last few years. Half a generation since, a ship of the rate—we do not say of the size—of the vessel which was in chase of Spike and his craft, would not have had it in her power to molest an enemy at the distance these two vessels were now apart. But recent improvements have made ships of this nominal force formidable at nearly a league's distance; more especially by means of their Paixhans and their shells.

For some little time the range carried the shot directly over the islet of the tent; Jack Tier and Rose, both of whom were watching all that passed with intense interest, standing in the open air the whole time, seemingly with no concern for themselves, so absorbed was each, notwithstanding all that had passed, in the safety of the brig. As for Rose, she thought only of Harry Mulford, and of the danger he was in by those fearful explosions of the shells. Her quick intellect comprehended the peculiar nature of the risk that was incurred by having the flour-barrels on deck, and she could not but see the manner in which Spike and his men were tumbling them into the water, as the quickest manner of getting rid of them. After what had just passed between Jack Tier and his commander, it might not be so easy to account for his manifest, nay, intense interest in the escape of the Swash. This was apparent by his troubled countenance, by his exclamations, and occasionally by his openly expressed wishes for her safety. Perhaps it was no more than the interest the seaman is so apt to feel in the craft in which he has so long sailed, and which to him has been a home, and of which Mulford exhibited so much, in his struggles between feeling and conscience—between a true and a false duty.

As for Spike and his people, we have already mentioned their efforts to get rid of the powder. Shell after shell exploded, though none very near the brig, the ship working her guns as if in action. At length the officers of the sloop-of-war detected a source of error in their aim, that is of very common occurrence in sea-gunnery. Their shot had been thrown to ricochet, quartering a low, but very regular succession of little waves. Each shot striking the water at an acute angle to its agitated surface, was deflected from a straight line, and described a regular curve toward the end of its career; or, it might be truer to say, an irregular curvature, for the deflection increased as the momentum of the missile diminished.

No sooner did the commanding officer of the sloop-of-war discover this fact, and it was easy to trace the course of the shots by the jets of water they cast into the air, and to see as well as to hear the explosions of the shells, than he ordered the guns pointed more to windward, as a means of counteracting the departure from the straight lines. This expedient succeeded in part, the solid shot falling much nearer to the brig the moment the practice was resorted to. No shell was fired for some little time after the new order was issued, and Spike and his people began to hope these terrific missiles had ceased their annoyance. The men cheered, finding their voices for the first time since the danger had seemed so imminent, and Spike was heard animating them to their duty. As for Mulford, he was on the coach-house deck, working the brig, the captain having confided to him that delicate duty, the highest proof he could furnish of confidence in his seamanship. The handsome young mate had just made a half-board, in the neatest manner, shoving the brig by its means through a most difficult part of the passage, and had got her handsomely filled again on the same tack, looking right out into open water, by a channel through which she could now stand on a very easy bowline. Everything seemed propitious, and the sloop-of-war's solid shot began to drop into the water, a hundred yards short of the brig. In this state of things one of the Paixhans belched forth its angry flame and sullen roar again. There was no mistaking the gun. Then came its mass of iron, a globe that would have weighed just sixty-eight pounds, had not sufficient metal been left out of its interior to leave a cavity to contain a single pound of powder. Its course, as usual, was to be marked by its path along the sea, as it bounded, half a mile at a time, from wave to wave. Spike saw by its undeviating course that this shell was booming terrifically toward his brig, and a cry to “look out for the shell,” caused the work to be suspended. That shell struck the water for the last time, within two hundred yards of the brig, rose dark and menacing in its furious leap, but exploded at the next instant. The fragments of the iron were scattered on each side, and ahead. Of the last, three or four fell into the water so near the vessel as to cast their spray on her decks.