"Yes, and I think you talk about all this like a man who knows more than he ought to."

This remark brought me up abruptly. It was evident that my arguments might give rise to the suspicion that I was not altogether irresponsible for the recent incident. Engineer Serko scrutinized me sharply as though he would read my innermost thoughts.

"Mr. Serko," I observed, "by profession, as well as by inclination, I am accustomed to reason upon everything. This is why I communicated to you the result of my reasoning, which you can take into consideration or not, as you like."

Thereupon we separate. But I fancy my lack of reserve may have excited suspicions which may not be easy to allay.

From this interview, however, I gleaned a precious bit of information, namely, that the dangerous zone of Roch's fulgurator is between five and six miles off. Perhaps, during the next equinoctial tides, another notice to this effect in another keg may also reach a safe destination.

But how many weary months to wait before the orifice of the tunnel will again be uncovered!

The rough weather continues, and the squalls are more violent than ever. Is it the state of the sea that delays another campaign against Back Cup? Lieutenant Davon certainly a.s.sured me that if his expedition failed, if the _Sword_ did not return to St. George, another attempt under different conditions would be made with a view to breaking up this bandits' lair. Sooner or later the work of justice must be done, and Back Cup be destroyed, even though I may not survive its destruction.

Ah! why can I not go and breathe, if only for a single instant, the vivifying air outside? Why am I not permitted to cast one glance over the ocean towards the distant horizon of the Bermudas? My whole life is concentrated in one desire: to get through the tunnel in the wall and hide myself among the rocks. Perchance I might be the first to catch sight of the smoke of a squadron heading for the island.

This project, alas! is unrealizable, as sentries are posted day and night at each extremity of the pa.s.sage. No one can enter it without Engineer Serko's authorization. Were I to attempt it, I should risk being deprived of my liberty to walk about the cavern, and even worse might happen to me.

Since our last conversation, Engineer Serko's att.i.tude towards me has undergone a change. His gaze has lost its old-time sarcasm and is distrustful, suspicious, searching and as stern as Ker Karraje's.

_November 17_.--This afternoon there was a great commotion in the Beehive, and the men rushed out of their cells with loud cries.

I was reclining on my bed, but immediately rose and hurried out.

All the pirates were making for the pa.s.sage, in front of which were Ker Karraje, Engineer Serko, Captain Spade, Boatswain Effrondat, Engine-driver Gibson and the Count d'Artigas' big Malay attendant.

I soon learn the reason for the tumult, for the sentries rush in with shouts of alarm.

Several vessels have been sighted to the northwest--warships steaming at full speed in the direction of Back Cup.

CHAPTER XVI.

ONLY A FEW MORE HOURS.

What effect this news has upon me, and what emotion it awakens within my soul! The end, I feel, is at hand. May it be such as civilization and humanity are ent.i.tled to.

Up to the present I have indited my notes day by day. Henceforward it is imperative that I should inscribe them hour by hour, minute by minute. Who knows but what Thomas Roch's last secret may be revealed to me and that I shall have time to commit it to paper! Should I die during the attack G.o.d grant that the account of the five months I have pa.s.sed in Back Cup may be found upon my body!

At first Ker Karraje, Engineer Serko, Captain Spade, and several of their companions took up position on the exterior base of the island.

What would I not give to be able follow to them, and in the friendly shelter of a rook watch the on-coming warships!

An hour later they return after having left a score of men to keep watch. As the days at this season of the year are very short there is nothing to fear before the morrow. It is not likely that the ships will attempt a night attack and land a storming party, for they must imagine that the place is in a thorough condition of defence.

All night long the pirates work, installing the trestles at different points of the coast. Six have been taken through the pa.s.sage to places selected in advance.

This done, Engineer Serko joins Thomas Roch in his laboratory. Is he going to tell him what is pa.s.sing, that a squadron is in view of Back Cup, and that his fulgurator will be employed to defend the island?

What is certain is that half a hundred engines, each charged with several pounds of the explosive and of the substance that ensures a trajectory superior to that of any other projectile, are ready for their work of destruction.

As to the deflagrator liquid, Thomas Roch has a certain number of phials of it, and--I know only too well--will not refuse to help Ker Karraje's pirates with it.

During these preparations night has come on. Only the lamps of the Beehive are lighted and a semi-obscurity reigns in the cavern.

I return to my cell. It is to my interest to keep out of the way as much as possible, for Engineer Serko's suspicions might be revived now that the squadron is approaching Back Cup.

But will the vessels sighted continue on their course in this direction? May they not be merely pa.s.sing on their way to Bermuda? For an instant this doubt enters my mind. No, no, it cannot be! Besides, I have just heard Captain Spade declare that they are lying to in view of the island.

To what nation do they belong? Have the English, desirous of avenging the destruction of the _Sword_, alone undertaken the expedition? May not cruisers of other nations be with them? I know not, and it is impossible to ascertain. And what does it matter, after all, so long as this haunt is destroyed, even though I should perish in the ruins like the heroic Lieutenant Davon and his brave crew?

Preparations for defence continue with coolness and method under Engineer Serko's superintendence. These pirates are obviously certain that they will be able to annihilate their a.s.sailants as soon as the latter enter the dangerous zone. Their confidence in Roch's fulgurator is absolute. Absorbed by the idea that these warship are powerless against them, they think neither of the difficulties nor menaces held out by the future.

I surmise that the trestles have been set up on the northwest coast with the grooves turned to send the engines to the north, west, and south. On the east, as already stated, the island is defended by the chain of reefs that stretches away to the Bermudas.

About nine o'clock I venture out of my cell. They will pay little attention to me, and perhaps I may escape notice in the obscurity. Ah!

if I could get through that pa.s.sage and hide behind some rock, so that I could witness what goes on at daybreak! And why should I not succeed now that Ker Karraje, Engineer Serko, Captain Spade, and the pirates have taken their posts outside?

The sh.o.r.es of the lake are deserted, but the entrance to the pa.s.sage is kept by Count d'Artigas' Malay. I saunter, without any fixed idea, towards Thomas Roch's laboratory. This reminds me of my compatriot. I am, on reflection, disposed to think that he knows nothing about the presence of a squadron off Back Cup. Probably not until the last moment will Engineer Serko apprise him of its proximity, not till he brusquely points out to him the vengeance he can accomplish.

Then I conceive the idea of enlightening Thomas Roch, myself, of the responsibility he is incurring and of revealing to him in this supreme hour the character of the men who want him to co-operate in their criminal projects.

Yes, I will, attempt it, and may I succeed in fanning into a flame any spark of patriotism that may still linger in his rebellious soul!

Roch is shut up in his laboratory. He must be alone, for never does he allow any one to enter while he is preparing his deflagrator.

As I pa.s.s the jetty I notice that the tug is moored in its accustomed place. Here I judge it prudent to walk behind the first row of pillars and approach the laboratory laterally--which will enable me to see whether anybody is with him. When I have gone a short distance along the sombre avenue I see a bright light on the opposite side of the lagoon. It is the electric light in Roch's laboratory as seen through a narrow window in the front.

Except in that particular spot, the southern sh.o.r.e of the lake is in darkness, whereas, in the opposite direction, the Beehive is lit up to its extremity at the northern wall. Through the opening in the dome, over the lake I can see the stars shining. The sky is clear, the tempest has abated, and the squalls no longer penetrate to the interior of Back Cup.

When near the laboratory, I creep along the wall and peep in at the window.

Thomas Roch is there alone. The light shines full on his face. If it is somewhat drawn, and the lines on the forehead are more p.r.o.nounced, his physiognomy, at least, denotes perfect calmness and self-possession. No, he is no longer the inmate of Pavilion No. 17, the madman of Healthful House, and I ask myself whether he is not radically cured, whether there is no further danger of his reason collapsing in a final paroxysm.

He has just laid two gla.s.s phials upon the table, and holds a third in his hand. He holds it up to the light, and observes the limpidity of the liquid it contains.

I have half a mind to rush in, seize the tubes and smash them, but I reflect that he would have time to make some more of the stuff. Better stick to my first plan.

I push the door open and enter.

"Thomas Roch!" I exclaim.

He has not heard, nor has he seen me.

"Thomas Roch!" I repeat.

He raises his head, turns and gazes at me.