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 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.