water running down to swell the stream at the foot of the valley. But the sound of running water was steady and unmistakable. I left the path and scrambled up the grass at the side of the rock, to find myself on a small flat patch of turf, a little dry lawn scattered with rabbits' droppings, and at the back of it another face of cliff.
In the face of the rock was a cave. The rounded opening was smallish and very regular, almost like a made arch. To one side of this, the right as I stood looking, was a slope of grass-grown stones long ago fallen from above, and overgrown with oak and rowan, whose branches overhung the cave with shadow.
To the other side, and only a few feet from the archway, was the spring.
I approached it. It was very small, a little shining movement of water oozing out of a crack in the face of the rock, and falling with a steady trickle into a round basin of stone. There was no outflow. Presumably the water sprang from the rock, gathered in the basin, and drained away through another crack, eventually to join the stream below. Through the clear water I could see every pebble, every grain of sand at the bottom of the basin. Hart's-tongue fern grew above it, and there was moss at the lip, and below it green, moist grass.
I knelt on the grass, and had put my mouth to the water, when I saw there was a cup. This stood in a tiny niche among the ferns. It was a handspan high, and made of brown horn. As I lifted it down I saw above it, half-hidden by the ferns, the small, carved figure of a wooden god. I recognized him. I had seen him under the oak at Tyr Myrddin. Here he was in his own hill-top place, under the open sky.
I filled the cup and drank, pouring a few drops on the ground for the god.
Then I went into the cave.
5
This was bigger than had appeared from outside. Only a couple of paces inside the archway — and my paces were very short — the cave opened out into a seemingly vast chamber whose top was lost in shadow. It was dark, but — though at first I neither noticed this nor looked for its cause — with some source of extra light that gave a vague illumination, showing the floor smooth and clear of obstacles. I made my way slowly forward, straining my eyes, with deep inside me the beginning of that surge of excitement that caves have always started in me. Some men experience this with water; some, I know, on high places; some create fire for the same pleasure: with me it has always been the depths of the forest, or the depths of the earth. Now, I know why; but then, I only knew that I was a boy who had found somewhere new, something he could perhaps make his own in a world where he owned nothing.
Next moment I stopped short, brought up by a shock which spilled the excitement through my bowels like water. Something had moved in the murk, just to my right.
I froze still, straining my eyes to see. There was no movement. I held my breath, listening. There was no sound. I flared my nostrils, testing the air cautiously round me. There was no smell, animal or human; the cave smelt, I thought, of smoke and damp rock and the earth itself, and of a queer musty scent I couldn't identify. I knew, without putting it into words, that had there been any other creature near me the air would have felt different, less empty. There was no one there.
I tried a word, softly, in Welsh. "Greetings." The whisper came straight back at me in an echo so quick that I knew I was very near the wall of the cave, then it lost itself, hissing, in the roof.
There was movement there — at first, I thought, only an intensifying of the echoed whisper, then the rustling grew and grew like the rustling of a woman's dress, or a curtain stirring in the draught. Something went past my cheek, with a shrill, bloodless cry just on the edge of sound. Another followed, and after them flake after flake of shrill shadow, pouring down from the roof like leaves down a stream of wind, or fish down a fall. It was the bats, disturbed from