This schooner Ebba, so well known on the American coast, is kept in a small creek on the western side of the island, behind a mass of rocks, and is invisible from the sea.

  The best place to land is on the west coast formerly occupied by the colony of Bermudan fishers; but it would first be advisable to effect a breach in the side of the cavern by means of the most powerful melinite shells.

  The fact that Ker Karraje may be in the position to use Roch’s fulgurator for the defence of the island must also be taken into consideration. Let it be well borne in mind that if its destructive power surpasses anything ever conceived or dreamed of, it extends over a zone not exceeding a mile in extent. The distance of this dangerous zone is variable, but once the engines have been set, the modification of the distance occupies some time, and a warship that succeeds in passing the zone has nothing further to fear.

  This document is written on the twentieth day of September at eight o’clock in the evening and is signed with my name

  Thomas Hart, Engineer.

  The above is the text of the statement I have just drawn up. It says all that is necessary about the island, whose exact situation is marked on all modern charts and maps, and points out the expediency of acting without delay, and what to do in case Ker Karraje is in the position to employ Roch’s fulgurator.

  I add a plan of the cavern showing its internal configuration, the situation of the lagoon, the lay of the Beehive, Ker Karraje’s habitation, my cell, and Thomas Roch’s laboratory.

  I wrap the document in a piece of tarpaulin and insert the package in the little keg, which measures six inches by three and a half. It is perfectly watertight and will stand any amount of knocking about against the rocks.

  There is one danger, however, and that is, that it may be swept back by the returning tide, cast up on the island, and fall into the hands of the crew of the Ebba when the schooner is hauled into her creek. If Ker Karraje ever gets hold of it, it will be all up with me.

  It will be readily conceived with what anxiety I have awaited the moment to make the attempt: I am in a perfect fever of excitement, for it is a matter of life or death to me. I calculate from previous observations that the tide will be very low at about a quarter to nine. The top of the tunnel ought then to be a foot and a half above water, which is more than enough to permit of the keg passing through it. It will be another half hour at least before the flow sets in again, and by that time the keg may be far enough away to escape being thrown back on the coast.

  I peer out of my cell. There is no one about, and I advance to the side of the lagoon, where by the light of a nearby lamp, I perceive the arch of the tunnel, towards which the current seems to be setting pretty swiftly.

  I go down to the very edge, and cast in the keg which contains the precious document and all my hopes.

  “God be with it!” I fervently exclaim. “God be with it!”

  For a minute or two the little barrel remains stationary, and then floats back to the side again. I throw it out once more with all my strength.

  This time it is in the track of the current, which to my great joy sweeps it along and in twenty seconds, it has disappeared in the tunnel.

  Yes, God be with it! May Heaven guide thee, little barrel! May it protect all those whom Ker Karraje menaces and grant that this band of pirates may not escape from the justice of man!

  XIV

  Battle Between the Sword and the Tug

  Through all this sleepless night I have followed the keg in fancy. How many times I seem to see it swept against the rocks in the tunnel into a creek, or some excavation. I am in a cold perspiration from head to foot. Then I imagine that it has been carried out to sea. Heavens! if the returning tide should sweep it back to tho entrance and then through the tunnel into the lagoon! I must be on the lookout for it.

  I rise before the sun and saunter down to the lagoon. Not a single object is floating on its calm surface.

  The work on the tunnel through the side of the cavern goes on, and at four o’clock in the afternoon on September 23, Engineer Serko blows away the last rock obstructing the issue, and communication with the outer world is established. It is only a very narrow hole, and one has to stoop to go through it. The exterior orifice is lost among the crannies of the rocky coast, and it would be easy to obstruct it, if such a measure became necessary.

  It goes without saying that the passage will be strictly guarded. No one without special authorization will be able either to go out or come in, therefore there is little hope of escape in that direction.

  September 25.—This morning the tug rose from the depth of the lagoon to the surface, and has now run alongside the jetty. The Count d’Artigas and Captain Spade disembark, and the crew set to work to land the provisions—boxes of canned meat, preserves, barrels of wine and spirits, and other things brought by the Ebba, among which are several packages destined for Thomas Roch. The men also land the various sections of Roch’s engines which are discoid in shape.

  The inventor watches their operations, and his eyes glisten with eagerness. He seizes one of the sections, examines it, and nods approval. I notice that his joy no longer finds expression in incoherent utterances, that he is completely transformed from what he was while a patient at Healthful House. So much is this the case that I begin to ask myself whether his madness which was asserted to be incurable, has not been radically cured.

  At last Thomas Roch embarks in the boat used for crossing the lake and is rowed over to his laboratory. Engineer Serko accompanies him. In an hour’s time the tug’s cargo has all been taken out and transported to the storehouses.

  Ker Karraje exchanges a word or two with Engineer Serko and then enters his mansion. Later, in the afternoon, I see them walking up and down in front of the Beehive and talking earnestly together.

  Then they enter the new tunnel, followed by Captain Spade. If I could but follow them! If I could but breathe for awhile the bracing air of the Atlantic, of which the interior of Back Cup only receives attenuated puffs, so to speak.

  From September 26 to October 10.—Fifteen days have elapsed. Under the directions of Engineer Serko and Thomas Roch the sections of the engines have been fitted together. Then the construction of their supports is begun. These supports are simple trestles, fitted with transverse troughs or grooves of various degrees of inclination, and which could be easily installed on the deck of the Ebba, or even on the platform of the tug, which can be kept on a level with the surface.

  Thus Ker Karraje, will be ruler of the seas, with his yacht. No warship, however big, however powerful, will be able to cross the zone of danger, whereas the Ebba will be out of range of its guns. If only my notice were found! If only the existence of this lair of Back Cup were known! Means would soon be found, if not of destroying the place, at least of starving the band into submission!

  October 20.—To my extreme surprise I find this morning that the tug has gone away again. I recall that yesterday the elements of the piles were renewed, but I thought it was only to keep them in order. In view of the fact that the outside can now be reached through the new tunnel, and that Thomas Roch has everything he requires, I can only conclude that the tug has gone off on another marauding expedition.

  Yet this is the season of the equinoctial gales, and the Bermudan waters are swept by frequent tempests. This is evident from the violent gusts that drive back the smoke through the crater and the heavy rain that accompanies it, as well as by the water in the lagoon, which swells and washes over the brown rocks on its shores.

  But it is by no means sure that the Ebba has quitted her cove. However staunch she may be, she is, it seems to me, of too light a build to face such tempests as now rage, even with the help of the tug.

  On the other hand, although the tug has nothing to fear from the heavy seas, as it would be in calm water a few yards below the surface, it is hardly likely that it has gone on a trip unless to accompany the schooner.

  I do not know to what its departure can be attributed, but its absence is likely to be prolonged, for it has not yet returned.

  Engineer Serko has remained behind, but Ker Karraje, Captain Spade, and the crew of the schooner, I find, have left.

  Life in the cavern goes on with its usual dispiriting monotony. I pass hour after hour in my cell, meditating, hoping, despairing, following in fancy the voyage of my little barrel, tossed about at the mercy of the currents and whose chances of being picked up, I fear, are becoming fainter each day, and killing time by writing my diary, which will probably not survive me.

  Thomas Roch is constantly occupied in his laboratory manufacturing his deflagrator. I still entertain the conviction that nothing will ever induce him to give up the secret of the liquid’s composition; but I am perfectly aware that he will not hesitate to place his invention at Ker Karraje’s service.

  I often meet Engineer Serko when my strolls take me in the direction of the Beehive. He always shows himself disposed to chat with me, though, it is true, he does so in a tone of impertinent frivolity. We converse upon all sorts of subjects, but rarely of my position. Recrimination thereanent is useless and only subjects me to renewed bantering.

  October 22.—Today I asked Engineer Serko whether the Ebba had put to sea again with the tug.

  “Yes, Mr. Simon Hart,” he replied, “and though the clouds gather and loud the tempest roars, be in no uneasiness in regard to our dear Ebba.”

  “Will she be gone long?”

  “We expect her back within forty-eight hours. It is the last voyage Count d’Artigas proposes to make before the winter gales render navigation in these parts impracticable.”

  “Is her voyage one of business or pleasure?”

  “Of business, Mr. Hart, of business,” answered Engineer Serko with a smile. “Our engines are now completed, and when the fine weather returns we shall resume offensive operations.”

  “Against unfortunate merchantmen.”

  “As unfortunate as they are richly laden.”

  “Acts of piracy, whose impunity will, I trust, not always be assured,” I cried.

  “Calm yourself, dear colleague, be calm! Be calm! No one, you know, can ever discover our retreat, and none can ever disclose the secret! Besides, with these engines, which are so easily handled and are of such terrible power, it would be easy for us to blow to pieces any ship that attempted to get within a certain radius of the island.”

  “Providing,” I said, “that Thomas Roch has sold you the composition of his deflagrator as he has sold you that of his fulgurator.”

  “That he has done, Mr. Hart, and it behooves me to set your mind at rest upon that point.”

  From this categorical response I ought to have concluded that the misfortune had been consummated, but a certain hesitation in the intonation of his voice warned me that implicit reliance was not to be placed upon Engineer Serko’s assertions.

  October 25.—What a frightful adventure I have just been mixed up in, and what a wonder I did not lose my life! It is only by a miracle that I am able to resume these notes, which have been interrupted for forty-eight hours. With a little luck, I should have been delivered! I should now be in one of the Bermudan ports—St. George or Hamilton. The mysteries of Back Cup would have been cleared up. The description of the schooner would have been wired all over the world, and she would not dare to put into any port. The provisioning of Back Cup would be impossible, and Ker Karraje’s bandits would be condemned to starve to death!

  This is what occurred:

  At eight o’clock in the evening on October 23, I quitted my cell in an indefinable state of nervousness, and with a presentiment that a serious event was imminent. In vain I had tried to seek calmness in sleep. It was impossible to do so, and I rose and went out.

  Outside Back Cup the weather must have been very rough. Violent gusts of wind swept in through the crater and agitated the water of the lagoon.

  I walked along the shore on the Beehive side. No one was about. It was rather cold, and the air was damp. The pirates were all snugly ensconced in their cells, with the exception of one man, who stood guard over the new passage, notwithstanding that the outer entrance had been blocked. From where he was this man could not see the lagoon, moreover there were only two lamps alight, one on each side of the lake, and the forest of pillars was wrapt in the profoundest obscurity.

  I was walking about in the shadow, when someone passed me.

  I saw that he was Thomas Roch.

  He was walking slowly, absorbed by his thoughts, his brain at work, as usual.

  Was this not a favorable opportunity to talk to him, to enlighten him about what he was probably ignorant, namely, the character of the people into whose hands he had fallen?

  “He cannot,” I argued, “know that the Count d’Artigas is none other than Ker Karraje, the pirate. He cannot be aware that he has given up a part of his invention to such a bandit. I must open his eyes to the fact that he will never be able to enjoy his millions, that he is a prisoner in Back Cup, and will never be allowed to leave it, any more than I shall. Yes, I will make an appeal to his sentiments of humanity, and point out to him what frightful misfortunes he will be responsible for if he does not keep the secret of his deflagrator.”

  All this I had said to myself, and was preparing to carry out my resolution, when I suddenly felt myself seized from behind.

  Two men held me by the arms, and another appeared in front of me.

  Before I had time to cry out the man exclaimed in English:

  “Hush! not a word! Are you not Simon Hart?”

  “Yes, how did you know?”

  “I saw you come out of your cell.”

  “Who are you, then?”

  “Lieutenant Davon, of the British Navy, of H.M.S. Standard, which is stationed at the Bermudas.”

  Emotion choked me so that it was impossible for me to utter a word.

  “We have come to rescue you from Ker Karraje, and also propose to carry off Thomas Roch,” he added.

  “Thomas Roch?” I stammered.

  “Yes, the document signed by you was found on the beach at St. George—”

  “In a keg, Lieutenant Davon, which I committed to the waters of the lagoon.”

  “And which contained,” went on the officer, “the notice by which we were apprised that the island of Back Cup served as a refuge for Ker Karraje and his band—Ker Karraje, this false Count d’Artigas, the author of the double abduction from Healthful House.”

  “Ah! Lieutenant Davon—”

  “Now we have not a moment to spare, we must profit by the obscurity.”

  “One word, Lieutenant Davon, how did you penetrate to the interior of Back Cup?”

  “By means of the submarine boat Sword, with which we have been making experiments at St. George for six months past.”

  “A submarine boat!”

  “Yes, it awaits us at the foot of the rocks. And now, Mr. Hart, where is Ker Karraje’s tug?”

  “It has been away for three weeks.”

  “Ker Karraje is not here, then?”

  “No, but we expect him back every day—every hour, I might say.”

  “It matters little,” replied Lieutenant Davon. “It is not after Ker Karraje, but Thomas Roch, we have come—and you also, Mr. Hart. The Sword will not leave the lagoon till you are both on board. If she does not turn up at St. George again, they will know that I have failed—and they will try again.”

  “Where is the Sword, Lieutenant?”

  “On this side, in the shadow of the bank, where it cannot be seen. Thanks to your directions, I and my crew were able to locate the tunnel. We came through all right, and ten minutes ago rose to the surface of the lake. Two men landed with me. I saw you issue from the cell marked on your plan. Do you know where Thomas Roch is?”

  “A few paces off. He has just passed me, on his way to his laboratory.”

  “God be praised, Mr. Hart!”

  “Amen, Lieutenant Davon.”

  The lieutenant, the two men and I took the path around the lagoon. We had not gone far when we perceived Thomas Roch in front of us. To throw ourselves upon him, gag him before he could utter a cry, bind him before he could offer any resistance, and bear him off to the place where the Sword was moored was the work of a minute.

  The Sword was a submersible boat of only twelve tons, and consequently much inferior to the tug, both in respect of dimensions and power. Her screw was worked by a couple of dynamos fitted with accumulators that had been charged twelve hours previously in the port of St. George. However, the Sword would suffice to take us out of this prison, to restore us to liberty—that liberty of which I had given up all hope. Thomas Roch was at last to be rescued from the clutches of Ker Karraje and Engineer Serko. The rascals would not be able to utilize his invention, and nothing could prevent the warships from landing a storming party on the island, who would force the tunnel in the wall and secure the pirates!

  We saw no one while the two men were conveying Thomas Roch to the Sword, and all got on board without incident. The lid was shut and secured, the water compartments filled, and the Sword sank out of sight. We were saved!

  The Sword was divided into three watertight compartments. The after one contained the accumulators and machinery. The middle one, occupied by the pilot, was surmounted by a periscope fitted with lenticular portholes, through which an electric search-lamp lighted the way through the water. Forward, in the other compartment, Thomas Roch and I were shut in.

  My companion, though the gag which was choking him had been removed, was still bound, and, I thought, knew what was going on.

  But we were in a hurry to be off, and hoped to reach St. George that very night if no obstacle was encountered.

 

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