In one glance I perceived the luxury of the interior, a small saloon, tapering off slightly at one end, upholstered in amber satin, save at the smaller end, where, upon a polished switchboard, was a group of strange handles of bra.s.s and ebony. Just in front of them a high seat was placed, which seemed arranged so that the whole of the handles were within the reach of a single operator, whose eyes would be on a level with the windows of the conning-tower. To the right was a steering-wheel, and to the left a compa.s.s.

I turned to my companion; he was busy adjusting the screws of the man-hole, and then, when all was finished to his satisfaction, he came towards me, and led me to the group of handles.

"It is your cruise, madame," he said, with a smile, "therefore you shall be the captain. Draw down the handle on the right."

I pulled it sharply downward, and felt the boat sink under my feet--we were beneath the water.

"Up!" he cried, and I obeyed him, and instantly the vessel's descent was arrested.

"The handle next to it," he said, "an inch down," and as I moved it the boat sprang forward, while he stood by my side, his eyes fixed on the compa.s.s, and his hand upon the wheel, now giving a turn to the left, and now to the right.

"We are clear of the cave," he cried, after a moment, "and in the open sea." Then, with a glance at the clock, he continued: "It has taken longer than usual to get away. Let _Le Diable_ show his power, if you would breakfast where I promised. Pull down that handle, madame, as far as it will go."

Grasping it firmly, I obeyed him, and as I did so the boat bounded forward with such speed and suddenness that I should have fallen had he not caught me by the arm.

"Too sudden!" he cried, with his usual chuckle. "You must not drive even the devil too furiously."

I seated myself on a lounge, while he remained at the wheel, his eyes alternating between the compa.s.s and a chart.

Presently he became blurred to me, for I had risen unconscionably early, and the motion of the boat, after the first plunge, was conducive to slumber, so that I sank back and knew no more until I felt a touch upon my arm and found him bending over me.

"In a quarter of an hour you will breakfast," he said.

"_Merci, monsieur_," I answered; "I am hungry."

"This boat is my coffin," he suddenly e.j.a.c.u.l.a.t.ed, looking me straight in the face. "That is why I will sell it to no one."

I nodded, and tried to smile in spite of my terror at this sudden change in his manner and the fierceness with which he gripped my wrist.

"When I am tired of life I shall drive into the midst of the Atlantic, sink _Le Diable_ to the lowest ocean depths, and die."

"Yes, when you are tired of life," I answered.

"And who knows when that may be!" he cried. "Perhaps to-day, perhaps to-morrow," and he chuckled in a mirthless fashion.

I gazed at him and shivered, but in a few moments his frenzy pa.s.sed, and, taking my hand, he led me towards the mechanism that controlled the boat, and pointed to the clock. "In ten minutes more we shall be there,"

he cried.

"How do these handles work the boat?" I asked, gently, with my mind upon my mission. "Where is the actual machinery?"

"That is my secret!" he shouted. "Pull." And he placed my fingers on another handle. Obedient to the touch the vessel slowed, and then stopped.

Again he placed my fingers upon a lever. "Hold it," he cried; and then suddenly he switched out the light, and we were in densest blackness.

"Raise it gently; give me your hand."

He drew me back with him, and I waited nervously in the darkness, until a faint, ghostly light flickered through the gla.s.s before me. A deep green grew lighter and lighter, until at last the sunlight streamed full in my eyes and the foam-flecked sea danced before me, with the roofs of a town, backed by English hills, beyond it.

It was Ventnor, and we had reached the spot that he had promised.

Then we breakfasted, and all through the meal, while the morning sunshine streamed through the circular windows, I wondered how I was to tempt the secret from him. Of what use was it for me to return to my friends and say I had cruised in the boat, that it was controlled by a series of handles, and that was all I knew? As well not have ventured at all.

"Now show me what guides the boat," I exclaimed, in my most ingenuous voice, as he rose from the meal and moved towards the tower.

"These handles," he answered. "See!" The sunlight vanished, the opalescent green of the sea grew darker and darker, and then blackness enshrouded all. There was not a sound save the click of the wheel as he moved it, and then the boat sprang forward again.

Then, in the darkness, he seized my arm and drew me towards him.

"There are no works," he whispered, "no mechanism at all. All the power is in my brain--_I_ drive it, _I_ control it."

I laughed a nervous laugh. "You are droll, monsieur."

"And you're a fool!" he shouted, wildly. "It's my brain, I tell you, that controls it all."

I wrenched myself free, and he switched on the light again, and then gave a shriek that froze my blood.

I turned with a start, and my flesh p.r.i.c.kled as I saw him standing with madness blazing in his eyes, his attenuated hand extended, pointing to the far end of the cabin. "Who is that?" he gasped.

"There is no one here but ourselves," I cried, trembling with apprehension.

"You lie! Look there, and there, and there," and his bony finger pointed to every corner of the saloon. "And there, and there! _Nom de Diable!_ They are all here!"

"Who are here?" I cried, with a weak attempt at bravado.

"They are; those who have tried to rob me of my secret--those whom you met at dinner. Ah!" He turned swiftly and moved slowly towards me, his body half bent, like a wild animal about to spring upon its prey.

"Ah!" he hissed again. "Those you met at dinner. Those you conspired to bring upon the boat to rob me."

"You're mad!" I shrieked, my courage utterly deserting me.

"Mad!" he raved, pointing about the cabin and grimacing at the imaginary intruders. "It's you who are mad. All of you, for you've come to your death. And you're in your coffin now!"

I had gradually crept as far from him as the limited s.p.a.ce would allow, but he still advanced with a stealthy tread; and then, when only a few inches separated us, and I hid my face in my trembling hands, I realized that he had halted.

He turned, and, with a bound, made for the switchboard and stopped the boat, pulled the lever right down, and then, s.n.a.t.c.hing a heavy wrench from the side, hammered with the fury of a maniac, until the bra.s.s and ebony splintered to fragments, and the handles were snapped off and lay on the floor.

I could feel the vessel sinking rapidly beneath my feet, and he stood grinning hideously, until a slight jar showed that we could descend no farther.

"We are at the bottom of the sea," he chuckled, "and no power on earth can move us."

With two blows he demolished the compa.s.s and steering-gear, and then, with a shriek of laughter, stood and viewed the wreckage.

And, dazed and bewildered, deprived of power of speech or movement, I sank back on a seat, the words ringing in my ears, "At the bottom of the sea, and no power on earth can move us."

How long we remained so who can say? for my senses were numbed. I kept no count of time, and was only aroused to consciousness as I saw him, with the wrench still in his hand, creeping towards me again.

I shut my eyes, knowing his purpose, and yet in apathy whether he struck or not. After what seemed ages I opened them, and he had only advanced one step. As I waited, so quietly, so slowly, that I could scarce see any movement, he made another step, and I found myself calculating how many more would be needful, and how long would be the time before he was near enough to strike.

Suddenly, as I watched him, the boat gave a lurch, as though the ground had slipped from beneath it, casting me upon the floor; while he, flinging up his hands to save himself, missed his footing, and fell backwards with a crash, his head striking the jagged edges of the shattered bra.s.s-work.