By the time that the hands had got the canvas stowed, yards squared, running gear hauled taut and coiled down, and decks cleared up generally, it was five o’clock in the evening; and the shadows were already beginning to deepen on the western side of the ravine along which the river flowed, while its eastern slopes were glowing brilliantly in the warm orange tones of the evening sunlight. It chanced that we had dropped our anchor at the precise spot which afforded us a clear view up the gently winding river for a distance of something like a quarter of a mile, and never in all my life had I looked upon a more lovely scene than the one that then delighted our eyes. The so-called “river” was really a small arm of the sea formed by a beautiful ravine—the bottom of which lay below the sea level—dividing the southern portion of the island into two unequal parts; and as the western side of this ravine was high and steep, while the eastern side sloped gently but unevenly up from the water until it merged in the high ground beyond, the whole surface of the island being finely broken and densely wooded, the contrasting effects of brilliant sunshine and soft purple shadow, with the multitudinous tints and endless varieties of foliage, vividly marked in the foreground and insensibly merging into a delicious, soft, misty grey over the distant heights, combined to form a picture the charming, fairy-like beauty of which it is as impossible to describe as it was entrancing to look upon.
So lovely indeed was it that I found it hard to resist the entreaties of Lady Emily and her sister that I would lower a boat and take them for a short pull up the river before sunset. It was necessary, however, that our first visit to this lovely island paradise should be made with all due circumspection; for although no sign or trace of inhabitants had as yet been discovered, the place might for all that be peopled, and peopled, too, with cruel, bloodthirsty savages, for aught we could tell to the contrary. While, therefore, I was exceedingly anxious, for reasons of my own, to get a nearer peep at the place without a moment’s unnecessary delay, I felt bound to point out to the ladies the absolute necessity for determining the question whether or not there were any inhabitants on the island before exposing them to the possible risk of a landing.
The objections to an immediate landing on the part of the ladies did not, however, apply with equal force in the case of us of the sterner sex; I therefore ordered the gig to be lowered, and, arming myself and each of the crew with a brace of loaded revolvers, prepared to make a preliminary trip as far as the creek referred to in the cryptogram. Upon hearing me give the order to get the boat ready, Sir Edgar asked permission to accompany me; and a few minutes later we shoved off, and headed up the river.
The waterway, as far up as we could see, maintained a tolerably even width of some two hundred yards, the deepest water being close alongside the western shore, which was very steep, and wooded clear down to the water’s edge. Here, with the assistance of the hand-lead, I found a minimum depth of two fathoms; but the bottom was very uneven, and in a few places I found as much as five fathoms of water. From these depths the bottom seemed to slope pretty uniformly upward towards the opposite or eastern bank, the slope of which was much more gentle, a narrow margin of very fine white sand intervening between the water and the deep, rich, chocolate-coloured soil. The varieties of trees and shrubs were countless, ranging all the way from the smallest and most delicate flowering plants to magnificent forest giants, some of which must have towered at least a hundred and fifty feet above the surface of the ground. Cocoa-nut palms formed a continuous fringe along the inner margin of the sandy beach; and beyond them were to be seen every imaginable species of tropical plant and tree, with foliage ranging in tint from the palest, most delicate green to deepest olive or purple black. The waving fronds of the delicate feathery bamboo were everywhere visible, while creepers in endless variety trailed their long cordlike stems and gaudy blossoms in all directions. The still, evening air vibrated with the continuous hissing buzz of countless millions of insects, and a few birds flitted noiselessly hither and thither among the gathering shadows; but no sign of a human form, not even the imprint of a footstep on the soft white sand, anywhere met my searching gaze.
At a distance of about half a mile, or perhaps a little less, from the mouth of the river, the shore on our starboard hand merged into a low wooded point, round which we swept, out of the main channel, into a charming basin, some two miles wide, surrounded on every side by high land, sloping gently backward from the water’s edge, and magnificently broken by deep, precipitous ravines, some of which could be traced from the heart of the surrounding hills clear down to the water’s edge. The centre of the basin was occupied by an islet, roughly circular in shape, and about half a mile in diameter, as we discovered by pulling round it. This islet was the hiding-place of the treasure, if the cryptogram was to be believed; and I accordingly inspected it as narrowly as the swiftly gathering darkness would permit, so that I might carry a tolerably distinct impression of it in my mind’s eye, as an aid to the plan that I must now definitely form and arrange before the next sunrise. As may be supposed, I had by this time got the words of the cryptogram off by heart—and, indeed, had destroyed the translation, lest it should fall into other hands—I therefore knew exactly what I had to look for as a mark to guide me to the hiding-place of the treasure, and accordingly kept a very sharp lookout for “the obelisk rock.” There was only one rock to be seen on the islet that at all answered to this description, and that, so far as I could distinguish in the gloom, was a pointed, needle-like mass, forming the summit of a steep cliff that rose precipitously from the water’s edge and constituted the northern extremity of the islet. But on getting round to the other side I was vexed and chagrined to find that the whole surface of the islet on the southern side of this curious cliff was densely overgrown with trees and scrub, which would certainly have to be cut deeply into in order to arrive at the spot where the treasure was said to be buried. This condition of affairs, natural enough though it was, had somehow never occurred to me; I had fully expected to find the hiding-place located in an open space that might be conveniently traversed in any and every direction, enabling the situation of the treasure to be determined by the simple process of measuring off a thousand feet in a direction due south from the base of the obelisk rock. Possibly that might have been the condition of the islet at the period when the treasure was buried—indeed, it very probably was—but there had been ample time for the ground to have become overgrown since then; and now it was so densely covered with vegetation that it would be hopeless to think of getting at the hiding-place without the assistance of the men. And that meant the absolute overthrow of my plan to keep the recovery of the treasure a secret from them!
What was to be done? I racked my brains during the whole of the long, hot, breathless night in a fruitless endeavour to devise some satisfactory way out of the difficulty, and arose from my sleepless bunk next morning with a splitting headache, and nothing in the shape of a settled plan beyond the determination to find a good long job for the men, the execution of which should afford me further time for reflection, and perhaps allow events to develop themselves.
Acting, then, upon this resolution, I caused the gig to be brought alongside immediately after breakfast; and ordered the axes and shovels to be passed into her, at the same time issuing instructions for all hands except the cook and steward to get into her and go on shore with me. The men bustled about, nothing loth—for were they not going to get a change from the monotony of sea life, and, at the same time, provide themselves with the means of unlimited indulgence in more or less vicious enjoyment for the remainder of their lives?—and I noticed, with impotent anger, that, having at length arrived, as they supposed, at the goal of their villainous schemes, with the wealth which was to be the reward of their treachery all but within their grasp, as they believed, the restraint which they had hitherto so rigorously imposed upon themselves was in a measure laid aside, and they began to reveal themselves, both in speech and in action, as the unscrupulous scoundrels that they were.
I paid no attention, however, to anything I saw or heard, leaving them to believe, if they pleased, that I regarded their behaviour as a simple ebullition of high spirits at the prospect of a little recreation ashore; and passing my sextant and other paraphernalia carefully down into the boat, quickly followed them and gave the order to shove off.
There were twelve of us, all told, in the boat; she was therefore pretty deep in the water. Notwithstanding which, so eager were the men to get at the treasure, that in less than ten minutes from the time of leaving the ship we were once more in the creek, and pulling toward its head or north-eastern corner, at which point I had noticed on the preceding evening that the timber appeared to be growing more thickly and heavily than elsewhere, and where, consequently, the task of penetrating it for any distance would involve the greatest labour and consume the most time.
As we drew near the shore at this point I observed—what had escaped my notice on the preceding evening—that a small stream of beautifully clear, crystal water came brawling down through a steep, narrow ravine, and discharged itself into the creek exactly at the spot for which we were heading, and I at once resolved to avail myself of its presence as a means of deluding the men into the belief that they were working at the right spot.