At length I saw him step off the bottom rung of the ladder and gingerly lower himself to the surface of the oyster bed, having reached which he gave a single tug of his signal line to indicate that he was all right. Then, after pausing for a moment, apparently to take a good look round, he cast off the shovel from the end of the line by which it had been lowered, and proceeded methodically to shovel the oysters, just as they came, into one of the nets, which had also been lowered within his reach. Ten minutes of steady work now ensued, at the end of which he gave the signal to hoist away, and up came our first spoils, probably about five hundred oysters, which were swung over the longboat and emptied into her, the second net having meanwhile been lowered down to the diver.
And now there occurred a somewhat diverting episode; for no sooner was the first net-load of oysters discharged into the longboat than the skipper, unable any longer to endure the suspense, scrambled over the side, armed with a formidable jack knife, and, leaping down into the boat, seized an oyster and proceeded to force it open with the blade of his knife, no doubt fully expecting to find at least one pearl of price in it. But, alas! the poor man was doomed to disappointment, for there was no sign or vestige of pearl in the fish, save the lovely iridescent lining of the two shells. A second attempt fared no better, and the disappointed seeker flung the shells far from him with a muttered something that sounded not unlike an imprecation. But the good man was not to be so easily put off. A third oyster was seized and savagely wrenched open, and this time three diminutive seed pearls rewarded his perseverance. Yet still he was not satisfied. A fourth oyster was opened, and proved a blank; a fifth was seized, and as the two shells were forced apart a magnificent pearl was revealed, together with some six or eight much smaller ones. A shout of triumph apprised us all of the fact that at last the search had proved successful; and the next moment up came the skipper, his face aflame with delight and excitement, to show all and sundry what a pearl looked like when fresh taken from the parent fish.
Meanwhile the process of filling, hoisting, and emptying the nets went steadily on for the best part of an hour, and then Cunningham signalled that he was coming to the surface, some three thousand oysters having by that time been secured. When Cunningham presently appeared, and the glass of his helmet was unscrewed, he informed us that his makeshift suit was perfectly watertight, and answered its purpose even better than he had dared to expect, and that he had come up simply because he felt fatigued with his unaccustomed work and needed a little rest. The skipper thought this a good opportunity to change boats, so he sent away the longboat with her load in charge of a couple of men, giving them instructions how to dispose of the oysters; and the gig was hauled up alongside in her place. Then the boatswain, who had all along manifested the utmost interest in the diving question, volunteered to change places with Cunningham and do a spell of shovelling: but the engineer explained that he could take another turn below quite easily, and proposed, as an amendment, that the boatswain should take on the afternoon shift; and, this being arranged, he again descended and resumed operations.
Then in due course there came a brief respite while everybody went to dinner, half an hour being allowed for the meal, at the expiration of which time operations went on uninterruptedly until about half an hour before sunset, when we were perforce obliged to cease work, in order to get the schooner back into the lagoon before nightfall. But we had done not at all badly; for I had kept a rough—a very rough—account of the number of oysters that had been brought to the surface that day, not counting them, of course, but just estimating the number that had come up in each net, and when I came to total up I found that, unless my calculations were a long way out, we must have secured at least twenty-five thousand oysters as a reward for our day’s work.
But this by no means ended with the mooring of the schooner in the lagoon, for when that was done there still remained the oysters to be laid out in rows upon the southern extremity of the island; and we soon found that the landing and laying of them out was a much more lengthy process than the getting of them up from the sea bottom. Very fortunately for us, we had arrived at the island when the moon was four days old, and in that exquisitely clear atmosphere a moon of even that age affords a very useful amount of light, of which we availed ourselves to empty the boats and make all ready for the next day before finally knocking-off work.
The next day was, with a rather notable exception, just a repetition of the day which had preceded it. The weather was as fine, and matters worked even more smoothly, for almost every hour revealed to us some little improvement that might be made in our methods of work, which we promptly adopted. Thus, for example, the boatswain having proved himself to be quite an expert diver, it was arranged that Cunningham and he should work spell and spell about, each man working two hours and then taking two hours’ complete rest. On this, our second day upon the bank, Cunningham and the boatswain had each been down once, the dinner hour had arrived and passed, and Cunningham was down again, working with tremendous energy—for a friendly rivalry had already arisen between him and the boatswain as to who could send up the most oysters—while I stood in the main chains, tending the signal line and intently watching the toiling figure diligently shovelling oysters away down below in the cool green shadow of the schooner’s hull. As on the previous day, we had a man aloft for the express purpose of keeping a lookout for sharks, but every time we hailed him his reply was that there were no sharks in sight.
Suddenly, as I stood watching Cunningham, a great greyish-brown object slid lazily along beneath me, and paused immediately above the toiling diver. A single glance sufficed me to identify it as a shark, full twenty feet in length; and I instantly sent down the pre-arranged danger signal, while the man at the masthead yelled: “Shark ho! right over the diver!” I sang out to the two men who were in the boat receiving the oysters as they came up to seize a couple of oars and violently splash the surface of the water with them, in the hope that the sound would drive the brute away—for, after all, the shark, voracious as it is, is a timid creature, easily frightened by any sudden or unaccustomed noise. And the attempt met with at least partial success, for the shark instantly darted away a few yards; but it as suddenly turned, and, apparently quite undismayed by the splashing, slowly came back.
Meanwhile, however, Cunningham had dropped his shovel, and, having drawn the sword bayonet with which he was armed, stood quite quietly on the defensive, alertly on the watch. Evidently the shark did not quite know what to make of the strange creature on the sea bottom, for he now began to swim rapidly to and fro, making short tacks each way of a few yards only, eyeing Cunningham intently all the while. Then, before we could do anything in the nature of intervention, the brute suddenly wheeled and made a dash straight for the engineer. So lightning swift was the onslaught that the only thing I distinctly saw was the quick whisk of the creature’s tail as it turned, and the sudden dart of the great body, followed by an equally sudden writhing movement; then in an instant the great fish appeared to be enveloped in a cloud of red, in which it almost disappeared; and the next thing I distinctly realised was that it was gone, while, the red cloud slowly dissipating, Cunningham was presently revealed in the very act of recovering his shovel for the purpose of resuming work. I signalled to him to come up at once, but he replied with a vigorous negative, and the next moment he was hard at work again.
A minute or two later the man aloft hailed: “I guess Mr Cunningham have give that there shark his gruel; for there he is, away out there on the starboard quarter, in his dyin’ flurry!” And, sure enough, there the brute was, on the surface, about a hundred and fifty yards away, twisting and splashing in the midst of a boil of pink foam; and a few minutes later the struggles ceased altogether, and the monster floated quiescent and awash, dead, one of its great pectoral fins and a narrow strip of its white belly just showing above the surface. I was terribly afraid that the smell of blood, and of the dead carcass, would attract other sharks to the neighbourhood, and so further imperil Cunningham’s safety—for sharks are reputed to possess an extraordinarily keen scent; but nothing of the kind happened. The dead shark slowly drifted away and was finally lost sight of, and we finished our day’s work without further interruption.
Thus matters went steadily on for a fortnight, by which time we had accumulated some three hundred and eighty thousand oysters, and had laid them out upon the island to undergo the process of decay in the scorching rays of the sun. And that they were undergoing that process at a very rapid rate our olfactory nerves soon informed us; for the odour of them became perceptible as early as the fourth day, while by the end of the fortnight it was so strong as to be scarcely endurable even on the oyster bank itself, which was about a mile to leeward of the island, although, by berthing the schooner every night right up in the weather corner of the lagoon, we managed to avoid getting more than an occasional whiff of it during the hours devoted to rest.