The late spring or early summer weather was hot and clear. We had been pressing on feverishly and were heated, tired and sleepy, when, while following a faint track through dense woods, we took a wrong turn and soon found that we had utterly lost our way. The sunlight was intensely brilliant and the windless air sweltering. Stumbling over rocks and through bushes was exhausting. We came upon a little spring and quenched our thirst. Standing by it and staring about we noticed what looked like an opening in an inconspicuous vine-clad cliff. It was, in fact, the entrance to a spacious and, apparently, extensive cave.

The outer opening was about the size of an ordinary door. Though it was well masked by beeches above and cornel bushes below, such was the position of the sun and so intense was the flood of light it poured down from the cloudless sky, that the inside of the cave, for some little distance, was faintly discernible in the glimmer which penetrated there. After our eyes had become accustomed to the darkness we could make out fairly well the shape and proportions of the first considerable grotto.

From the outer opening a passage about a yard wide and two yards high extended straight into the cliff for about four yards. There it bent sharply to the right in an elbow. This offset extended three or four yards and then bent to the left in a similar elbow, opening into a cavern more than fifteen yards wide, twice as long or longer, and with a roof of dim white pendants like alabaster, no part of which was less than five yards from the conveniently level, rather damp floor, while some parts of it were lofty.

The two elbows in the entrance passage made it impossible to see into this cavern from anywhere out in the woods, and impossible to see out from anywhere inside it. Yet, as I said, so brilliant was the sunlight and so favorable the position, of the sun at the moment of our entrance that, after the outer dazzle had faded from inside our eyes, we could make out the form and size of this rocky hall.

To the right of the opening where the outer passage expanded, around a jutting shoulder of rock, we found a recess about three yards across and nearly as deep, in which we felt and smelt wood-ashes and charred, half- burnt wood. We groped among the damp charcoal, convincing ourselves that many good-sized fires had been made there, but none recently. We stood back and regarded this recess, which was so placed that no gleam from any fire, however large, kindled in it, could ever show outside the cave. Investigating the recess yet again Agathemer looked up and pointed. Above me, I saw sky. The recess was a natural fire-place with a natural chimney from it, opening at a considerable height above.

To the right of the fire-place recess, round another smaller shoulder of rock, was a perfectly vertical wall of smooth stone terminating just above our reach at an opening three yards wide or more. The top of the wall of rock at the bottom of the opening was almost as straight as a door-sill.

At first we could descry in the walls of the cavern no other openings than the entrance, the chimney and this opening above our reach, unless one boosted the other up. From under it we went all round the cave past the fire-place and the entrance. The floor was all damp or moist, no place fit for us to lie down to sleep and we felt along the wall opposite the fire- place, where the light was too dim to see at all. After feeling for some yards we emerged or came round into a less dusky space, where we could see to some extent and so on along the back wall of the cave opposite the entrance, later groping along the wall, when the light failed.

Some forty to forty-five yards from the entrance, at the far end of this extensive grotto, we came upon a passage, two or three yards wide and about as high, leading further back into the bowels of the mountain. We groped into it a few steps, but it sloped sharply downward and was wet, so we retreated out of it, it being also pitch dark.

Returning along the other side of the cavern towards the fire-place we came upon a narrow opening, less than a yard wide and not much over a yard high. It led into a passage which sloped upwards and was free from moisture. Agathemer was for exploring it. I remonstrated. He insisted. After some expostulation I bade him stand at the opening, which was out of sight of the gleam of daylight at the entrance, being behind a big shoulder of rock further in than the fire-place. While he stood as I told him I went out towards the middle of the cavern floor till I could see the fireplace, though very dimly, and the entrance, quite clearly, by the mellow glow at it from the outer sunshine reflected along the walls of the twice bent entrance-passage.

When I had reached a position from which I could certainly see the entrance and from which, as Agathemer told me, I could be seen by him, I told him I would stay there while he explored the little passage into the side of the cavern. I adjured him to be cautious and not venture himself recklessly in the pitch dark. He declared he could feel his way safely some distance and be sure of returning. Then he crawled into the narrow opening.