When I had been lowered some twenty feet, I turned my lantern down and saw through the sheen of water a bottom of rock with here and there a cluster of loose stones; one big slab which stuck up endwise, was evidently that which had fallen from the roof under my hammer. It was manifest that there was, in this part of the cave at any rate, not sufficient water to make it a matter of any concern. I called to Marjory to lower slowly, and a few seconds later I stood in the cave, with the water just above my knees. I moved the new-fallen slab to one side lest it might injure any one who was descending. Then I took the strong rope from me, and knotted round my waist the end of the thin rope which I had brought for the purpose. This formed a clue, in case such should be necessary, and established a communication with Marjory which would tend to allay her anxiety. With the cord running through her fingers, she would know I was all right. I went cautiously through the cave, feeling my way carefully with the long stick which I had brought with me. When I had got some distance I heard Marjory's voice echoing through the cave: "Take care there are no octopuses!" She had been thinking of all sorts of possible dangers. For my own part the idea of an octopus in the cave never crossed my mind. It was a disconcerting addition to my anxieties; but there was nothing to do. I was not going to abandon my project for this fear; and so I went on. Further inland the cave shelved down on one side, following the line of the rock so that I passed through an angular space which, though wide in reality, seemed narrow by comparison with the wide and lofty chamber into which I had descended. A little beyond this again, the rock dipped, so that only a low tunnel, some four feet high, rose above the water. I went on, carefully feeling my way, and found that the cave ended in a point or narrow crevice. All this time I had been thinking that the appearance of the place did not quite tally with the description in de Escoban's narrative. No mention had been made of any such difficulties; as the few men had carried in what must have been of considerable bulk and weight there would have been great difficulties for them.