“Leave him to me,” said Don Hermoso. “I am a bit of a chemist, in my way, and I will concoct a liquid a few drops of which in his grog the last thing at night will cause him to sleep soundly all night, and awake none the worse in the morning.”
“That will get us over one difficulty,” said Jack, “and I have just thought of a plan that will get us over another—that of getting the submarine into the water unobserved. It strikes me that we can do all that is necessary without using the submarine at all. That torpedo boat is, as you may observe, lying quite close to the shore, so close, indeed, that there cannot be much more than two feet of water under her keel. Consequently Macintyre and I have only to don our special diving dresses—which, as I think I have explained to you, need no air-pipe or anything of that sort—go down over the side of the yacht, and make our way to our prey under water. With a little management we could even do the trick in broad daylight, and nobody be any the wiser!”
“Excellent!” exclaimed Milsom enthusiastically. “We will have the lighters alongside to coal us to-morrow; and before they come along we will hang tarpaulins all round the ship to keep the paint clean. Then, while everybody is busy coaling, you and Macintyre can watch your opportunity and slip over the side through the ash port. Gad! won’t those fellows be wrathy when their propeller parts company! They will no doubt suspect us, but they cannot possibly prove anything.”
On the following morning, immediately after breakfast, Milsom went ashore and made arrangements for the immediate coaling of the yacht; and while he was absent, Jack and Macintyre, the chief engineer, got out the diving dresses and thoroughly overhauled them, charged the air cylinders with densely-compressed air, and collected such tools as they expected to require for their job. By the time that this had been done, Milsom was back aboard the yacht, having made all his arrangements, including one which was of considerable assistance to Jack and Macintyre. This consisted of an arrangement to take the yacht directly alongside the coal hulk, instead of coaling from lighters, and the advantage to the conspirators arose from the fact that the particular hulk from which the Thetis was to coal lay within a short hundred yards of the spot where the Spanish torpedo boat rode at anchor. Then a number of tarpaulins were got up on deck and hung over the ship’s sides, fore and aft, covering the hull from the bulwark rail right down to the surface of the water, to protect the white paint from defilement by flying coal dust; and, this having been done, the yacht was taken alongside the coal hulk, and the process of coaling the vessel at once began under the joint supervision of Milsom and the second engineer, the skipper being especially particular in the arranging of the fenders between the hulls of the two craft. So fastidiously careful was he, indeed, in this matter, that he finally caused two booms to be rigged out, one forward and one aft, to bear the yacht off from the side of the hulk, with the result that there was a clear space of fully two feet between the sides of the two craft. And, to facilitate as much as possible the process of coaling, Milsom caused a broad gangway, nearly six feet wide, to be rigged between the two vessels, so that the porters might pass to and fro freely without obstructing each other. And, singularly enough, this gangway happened to be rigged exactly over the ash port, which was thus quite effectually concealed from the view of even the most prying eyes. And there undoubtedly were several pairs of eyes very curiously and intently watching everything that was happening aboard the English yacht, not the least intent among them being those of the custom-house officer, who planted himself upon the bridge of the Thetis, fully determined that nothing great or small should be passed from the yacht to the coal hulk without his full knowledge and consent. Thus, thanks to the exceeding care with which Milsom had made his dispositions, Jack—who, with the two Montijos, was supposed to be down below—and Macintyre, fully equipped in their diving dresses, and with their tools slung to their belts, had not the slightest difficulty in leaving
the yacht unobserved, and descending to the bottom of the harbour by way of a diving ladder.
The water being shallow and tolerably clear, and the sun high enough in the heavens to throw a strong light down into it, the two adventurers were able to see well enough to be able to pass from the yacht to the torpedo boat without any other guide than that of their unaided eyesight; and within ten minutes the pair found themselves beneath the bottom of their quarry, the keel of which was, as Jack had anticipated, within about three feet of the ground. The boat, they found, was driven by a single propeller protected by a skeleton frame forming the boat’s keel and sternpost, and to climb into this frame occupied Macintyre less than a minute, helped as he was by Jack. Macintyre’s first act was to subject the propeller nut to a very careful examination, after which he fixed a big spanner in position and threw his whole weight upon it, assisted by Jack, who was pulling at a rope attached to the extreme end of the spanner handle. The nut, however, was rusted on so effectually as to be immovable, so Macintyre climbed down and, by means of a slate and a piece of chalk, consulted Jack as to what was best to be done to overcome the difficulty. Looking up, and studying the structure of the boat’s stern intently, Jack saw that by steadying themselves by the rudder chains they could both climb up and stand upon the arm of the spanner, when, by bracing their shoulders against the boat’s overhanging stern, they could bring the whole of their united strength to bear, and thus possibly start the nut. By means of a diagram and a few words chalked upon the slate Macintyre was soon made to comprehend what Jack meant, and then they both climbed up and, with considerable difficulty, arranged themselves in the required position. Then, bracing their shoulders against the vessel’s hull, the two men thrust with all their might, with the result that the nut suddenly started, and the spanner fell off, dropping to the bottom of the harbour and leaving the two operators hanging by the rudder chains. The drop from thence to the sand, however, was not above six feet—a mere trifle in water—so they let go, recovered the spanner, and got to work again. Once started, the nut gave them very little further difficulty, and ten minutes later it was off and safely buried out of sight in the sand. The propeller, however, still remained on the shaft, and might quite possibly continue to remain there for a time, even should the boat get under way; but the moment that she stopped her engines after once getting under way, or if she should happen to attempt to go astern, the propeller would at once slip off and be lost. Three-quarters of an hour from the moment of leaving the yacht, Jack and Macintyre were safely on board her again, with their task accomplished, much to the satisfaction of the party.
It was well on toward lunch-time ere the yacht’s bunkers were full and she was able to haul off from the coal hulk, and the greater part of the afternoon was occupied by the crew in washing down the decks and paint work, cleaning up generally, polishing brasswork, and restoring the little vessel to her normal state of immaculate neatness; during which Jack and the two Montijos took a final run ashore, for it had been decided that, failing the occurrence of anything to cause an alteration of their plans, they would leave for Cuba on the following day.
No attempt was made to preserve secrecy as to the yacht’s movements; nor, on the other hand, were the preparations for her departure ostentatiously displayed. Soon after eight o’clock in the morning a thin film of smoke was seen to issue from the vessel’s funnel, gradually increasing in density, and it became quite apparent to all who chose to interest themselves in the matter that the Thetis was getting up steam in readiness to take her departure. And that she intended to leave almost immediately was further indicated by the arrival alongside her of a boat containing fresh water, and other boats containing fresh meat, vegetables, fruit, and supplies generally. But there were no signs of hurry on board the vessel: everything was done openly and leisurely, as is the way of people who are taking their pleasure; and it was not until nearly five o’clock in the afternoon that the boats were hoisted to the davits, and a thin jet of steam spouting from the bows of the vessel proclaimed that her crew were getting her anchor. And when at length Perkins, the chief mate, standing in the bows of the vessel, vociferously announced that the anchor was aweigh, there was no sign of haste or anxiety in the slow, leisurely movement of the yacht as she swept round in a wide circle from the spot where she had lain at anchor, and headed seaward by way of the West Channel, dipping her ensign to the men-o’-war in the roadstead as she went, while her crew catted and fished the anchor on its appearance above the surface. Then, and not until then, did the Thetis quicken, until she was running at a speed of about fourteen knots.
The yacht had been under way about half an hour when Jack, who with the two Montijos and Milsom was on the top of the deck-house, diligently watching the roadstead which they had just left, exclaimed: “Here she comes!” and the Spanish torpedo boat was seen coming along astern, with a dense cloud of black smoke pouring from her funnels, and the water playing like a fountain about her sharp stem as she swept after the Thetis at full speed. Milsom looked at her long and earnestly through his binoculars; then he turned to Jack and, with a frown wrinkling his brow, said: