She was round about the headland the next morning, and the next, and the next. During the day I never saw her; but at night she was generally to be found on the cliff above the Reivie o'Pircappies. I was glad of one thing; she did not seem to suspect that I was working all the time. Once I asked her what she was waiting for; she answered without looking at me: "In the dark will be a struggle in the tide-race, and a shrood floatin' in the air! When next death an' the moon an' the tide be in ane, the seein' o' the Mystery o' the Sea may be mine!" It made me cold to hear her. This is what she foretold of Marjory; and she was waiting to see her prophecy come to pass. CHAPTER XXVII ENTRANCE TO THE CAVERN One night, when I had got down a considerable depth into the rock, I took the pick to loosen out some stone which I had drilled. As I struck, the sound of the rock was hollower than I had before noticed. My heart leaped into my mouth, and I had to pause. Then I struck again harder, and the sound was more hollow still. Whether or no it was the place I was looking for, there was some cave in the rock below me. I would have gone on working straightway had there been anyone with me; but being alone I had to be careful. I was now standing on, evidently, only a layer of rock, over an opening of whose depth I was in ignorance. Should this piece of stone break away, as was quite possible from my working on it, I might be precipitated into a living tomb. The very secrecy in which I had kept my work, might tend to insure my death. Therefore I made all preparation for such a casualty. Henceforth I worked with round my waist a short rope the other end of which was fastened to a heavy staple in the wall. Even if the rock should give way underneath me, a foot or two would limit my fall. This precaution taken, I worked more furiously than ever. With a large hammer I struck the rock at the bottom of the shaft, again and again, with all my might. Then I heard a dull sound of something rattling below me; the top of the cave was falling in. I redoubled my efforts; and all at once a whole mass of rock sunk beneath my hammer and disappeared into a black chasm which sent up a whiff of cold air. I had seized my rope to scramble out, fearing asphyxiation; but when I smelled salt water I did not fear. Then I knew that I had got an opening into a sea cave of some sort. I stuck to my work till I had hammered an irregular hole some three feet square. Then I came up to rest and think. I lowered a rope with a stone at the end, and found that the depth was some thirty feet. The stone had gone into water before it touched bottom. I could hear the "plop" as it struck the surface. As I thought it better not to descend by myself, lest there should be any danger of returning, I spent the rest of my stay for that evening in rigging up a pulley in the roof over the hole so that I might be lowered down when the time should come. Then I went home, for I