The light flickered on innumerable stalactites, which glittered like pinnacles and pendants of dazzling gems, while, for the first time, I became aware of the dismal silence and tomb-like solitude of the cave. I tried to whistle, but no sound came from my parched lips; then I called in a low tone, and to my surprise the echoes surpassed my voice in the volume of sound and then gradually died away, till it seemed as if, from the remote recesses of the cavern, came a mocking laugh. I repeated the call, and again yet louder, when suddenly there was a rush and a roar, and I found myself lying on my back in utter darkness. For some considerable time I lay helpless, the utter blackness and the terrifying solitude almost depriving me of my senses. Something heavy was gripping my left foot, and I found that I was held by a mass of fallen stone. The candle had been thrown from my hand, and was extinguished by the fall; but with feverish haste I drew the box of matches from my pocket and struck a light. Close at hand was the candle, and by its renewed light I saw, to my horror, that a fall had occurred from the roof, and my retreat was cut off by a tightly wedged mass of stone. By a supreme effort I wrenched my foot free and staggered upright, stifling a desire to shout for fear that a further fall might occur. Hastily I tried to find a communication through the barrier, but there was no hope in that direction. Even the twine was held as firmly, as if tied to a post, and, on attempting to pull it, the thread broke off close to the rock. I broke into a cold sweat, but after a few minutes I recovered my senses to a certain extent, arguing with myself that I should be missed before long, and that plenty of willing hands could remove that mass of rubble which held me prisoner. The light, however, gave me grave misgivings, for the double-wicked candle was burning away rapidly, so, by the aid of my knife, I split the wax cylinder lengthways, thus giving me two candles, as I had originally. One I blew out and put in my pocket, with the feeling of satisfaction of having a light for six hours at the least. Slowly the time passed. Surely, I thought, my uncle must have taken the explosives to the reef long before now; why had he not come to look for me? Fearful thoughts flashed through my bewildered brain. Supposing the blasting powder had exploded, blowing my uncle and the boat's crew to atoms. My father would naturally conclude that I had shared their fate, and I would be left to perish miserably in the awful darkness of this lonely cavern. Probably it was the detonation of the explosion and not the vibration of the sound of my voice that had dislodged the roof of the cave. At length, after hours, as it seemed, of weary waiting, I heard a dull rumble in the direction of the mouth of the cavern, and gradually the sound came nearer and nearer. "Can't go no 'igher, sir," came a faint voice. "The string stops 'ere, an' the whole place is broken up."