"No," I answered blankly, astonished at the question. A terrible thought flashed through my mind that, as a last crowning horror, Woodley was actually going out of his mind. "No," I repeated in a faltering tone, "I don't believe in ghosts."

"Neither do I, then," said George; and picking up his wooden spade, he went on digging.

CHAPTER XVII.

DAYLIGHT AT LAST.

How that night passed, or whether it was night or day, I cannot say. Worn out, I must have fallen asleep over my work; and when I awoke, George was shaking my arm and informing me that he had crawled through the hole and found the passage free on the other side. I seemed to be burning hot now; there was a singing in my head, and as I rose to my feet I staggered and almost fell. How many hours George had been at work I had no idea. My notions of time were getting hazy and uncertain; I felt that we had lived in that dark, windy passage for ages.

The hole had been enlarged just sufficiently to admit of our crawling through. The fall of earth did not extend many yards, and beyond it we found ourselves in the continuation of the tunnel. On, on, on we went, moving slowly, with only the uncertain light of the tiny lamp to warn us of any dangerous pitfall which might lie in our path. Contrary to my expectation, we encountered no further obstacle of a similar kind to that through which we had just cut our way. Now we were passing once more through solid rock, and now the tunnel was continued through earth, supported by rough-hewn beams, black with damp and age. Owing to our slow progress, the distance seemed much longer than it no doubt really was; the path sloped upward with a gentle gradient all the way, and so long did the ascent appear that at almost every step I wondered that we did not arrive at the surface of the ground on a level with the top of the cliffs. The passage made no turns, and we were evidently striking straight inland. The air still kept fresh, and even at this distance from the cave we could feel the upward blast of air as the big seas entered the cavern.

I staggered along like one in a dream, sometimes steadying myself with my hands as I lurched up against rock or beam; then all at once George, who was going on a pace or two in front, started back so quickly that he trod on my toes, and nearly knocked me down. At the same moment the lamp fell from his hand, and we were once more in a darkness that could be felt.

I heard it myself that time! Out of the inky blackness, from the direction in which we were going, there came a most unearthly sound, half human, half the note of some strange instrument made and played upon by underground goblins of old country folk's tales. It rose to almost a shriek at its loudest pitch, and then died away into a sort of crooning growl. So weird and terrifying was it in that subterranean region, that, though past caring for most things, whether good or ill, I felt the hair bristle on my head.

Woodley was a brave man, as I had reason to know, but I felt his arm shaking as I clutched it with my hand.