I gave an answering shout, keying my voice down to something like Feddon"s ba.s.s growl.
"It"s C.Q.D.!--C.Q.D.!" came in a shrill voice of alarm, and Mr. Vargus ran down the ladder like an ape.
C.Q.D.! The signal of "extreme danger." Well, I rather thought it was!
Where I stood I was in deep shadow, and my face could not possibly be seen. I was much the same height and build as the dead man, and Vargus ran down the cave without the least suspicion. He had gone to his left, my right, to where I had already seen a pale light, and I followed him, more slowly, at a distance of some ten yards. It was a natural instinct enough. My only idea was to silence him, find Constance, and fly from the horrible place. I could not know that I was making a fatal mistake.
I was running forward into complete understanding. The great cave turned a little to the right. It opened out every second until at length I saw the mouth, wide as that of the largest-sized hangar on an aerodrome, flooded with moonlight!
Opposite, sixty yards away, was a precipitous wall of black rock; between it and the mouth of the cave a terrible chasm, which fell sheer to the water. It was all clear now. Far above, on the top of the cliffs, was that fenced-in part with the "dangerous" notice boards. You will remember that I had lain down by the side of this fence and peered downwards. I had looked into the same gulf that I was now looking into from a much lower alt.i.tude. And the rock there overhung so greatly that there was no possible indication of the cave mouth where I now stood.
Moreover, the cave itself turned _inward_ from the sea, running parallel to the cliff. _From the sea, as from the land, the opening of the cave was entirely hidden._
Vargus was fumbling at a switch-board. He pulled down a vulcanite handle; there was a green spark, and lights at the top, bottom and sides of the entrance glowed out brightly.
Imagine an illuminated rabbit-hole in the side of a railway embankment, and you have an exact miniature of what this vast secret cave had now become. Go a little further and think of a bat whose lair was in this hole, and was guided to it by the lights....
Vargus snapped another and smaller switch. I watched him with a sense of complete detachment. I knew, as well as if I had been told, that he was lighting guiding lamps somewhere on the two headlands that guarded the entrance to the cave outside. No thought of danger came to me; I think joy at this complete discovery, and wonder at the stupendous cunning and achievement of it all were my only emotions.
"They may be here at any moment, Feddon. I tell you I don"t like it at all. I told the Chief that it was madness not to lie low for a bit. But you know what he is. The Government has got the tip somehow, the Cornish seas are _humming_ with enemies. That fellow, Custance, is smart as they make them...."
He was moving towards me as these words came from him in a nervous, disjointed stream of words. Then he saw me, and stopped bang in the middle of a sentence.
It was my moment.
"How do you do, Mr. Vargus," I said. "You mentioned my name. Indeed, you paid me a compliment for which I thank you. I thought I"d drop in for a chat. Sorry to find Major Helzephron out."
I never saw a man in such deadly fear. His face went the colour of cheese, and a horrible choking noise began in his throat. He staggered to within a yard of the brink; another step and he would have plunged into the abyss.
"You, you, _you_!" he said, the last word in a dreadful whisper.
"The Oxford professor--yes. Mr. Vargus, I am a lover of music, and you have entertained me royally to-night. But you have played Chopin for the last time in this world."
I lifted the pistol and covered his heart. His yellow mask quivered and was still. "Quickly, please," he said, and there was even a faint smile of relief about his pallid lips.
He could face death gladly, and I knew why. To have shot him there and cast his body to the void would have been a mercy. I had other uses for Mr. Vargus.
My pistol hand was steady as a rock. With the left I took out Danjuro"s handcuffs and walked up to him.
"Not yet," I said, when I was within a foot.
He saw what I meant. As comprehension leapt into his eyes he tried to step back. He nearly did it, but I was just too quick for him. I caught his ankle with the crook of my right foot, and he crashed on his back with his head and shoulders actually over the chasm. Before he could move again I had jerked him backwards by the legs, and had him handcuffed.
I pulled him to his feet by his collar, and half marched, half carried him back into the cave. He was nothing more than a bundle of clothes in my hands.
"Now," I said, "take me _at once_ to the place where Miss Shepherd is confined, and, though I make no promises, it may go less hardly with you than the rest."
He twisted his head and tried to look me in the face. "If I do, will you shoot me?" he whispered, fawning on me like a beaten dog. "For G.o.d"s sake shoot me, or give me an opportunity to shoot myself."
"The hangman will save you the trouble," I answered brutally. "Now then, march!" He gave a great wail of despair.
"Ah, you don"t know what I was once!" he cried, and there was such a horror of remorse, a d.a.m.nation so profound in that cry of agony, that a fiend would have been moved.
"I heard you play the Third Ballade," I answered, and my voice was no longer firm.
"Death, please, Death."
"Take me quickly to Miss Shepherd. Then perhaps--I can"t kill you myself, but ..."
It was as though my words poured a new life into his veins. His knees still knocked together in a loathsome paralysis, but he made effort to shamble forward.
CHAPTER XIV
THE AIR PIRATE AT LAST
Vargus was silent now. Our feet made no noise upon the sandy floor of the cave. It was then that I heard something like a cat purring.
Unconsciously I stopped to listen. No, it wasn"t a cat, it was the faint drone of some night beetle; it was ...
On the right wall of the cavern, remember that my back was turned to its mouth and the sea--there was a sudden flash of white light.
The rest happened in five seconds.
The light leapt out from the wall, and instantaneously the vast vaulted place was brilliantly illuminated. I had a fleeting vision of wooden galleries, a workshop and smithy, piles of stores, and then I wheeled round with a shout of terror. The drone had leapt up to a deep, menacing note, like the E string of a double ba.s.s. A circular furnace of white light in the centre of a gigantic shadow rushed at me with incredible speed.
A blast of wind struck me like the sh.e.l.l from a six-inch gun; the drone rose to the echoing shout of an army as the Pirate Airship entered the cave that was its home.
I had just the millionth part of a second in which to realize the truth before my head struck; the wind seemed to tear out my very vitals, and I knew nothing more.
Once, when I was a boy at the seaside in Wales, I dived into a deep rock pool, and, deceived by the clearness of the water, hit my head against a submerged ledge, and for several seconds was stunned. There was no one with me, but, fortunately, I recovered in time, and with bursting lungs regained the surface.
The experience was repeated now, or so it seemed, with a curious subconscious memory. I thought that I was rushing violently upwards towards the light out of a well of darkness. Each moment the radiance increased and my speed grew greater. There was a sound as of many waters in my ears.
I opened my eyes. The light was brilliant, painful. Also, it moved and flashed, and so it was not the sun of twenty years before beating down....
Someone spoke: "Yes, it"s the man himself. He"s shaved off his moustache, and his hair and skin are dyed. He"s a fair chap really.
Look at his lower neck and chest. It"s Sir John Custance right enough!"
I lay and listened. Although I heard every word, and perceived that an electric torch was dancing about, the conversation hardly seemed to concern me.
There was another voice: "Vargus said he admitted it, but Vargus has fainted again."