But in answer to all my shouts there never was any sound at all, except of a rocky echo, or a scared bird hustling away, or the sudden dive of a water-vole; and the place grew thicker and thicker, and the covert grew darker above me, until I thought that the fishes might have good chance of eating me, instead of my eating the fishes.
For now the day was falling fast behind the brown of the hill-tops, and the trees, being void of leaf and hard, seemed giants ready to beat me. And every moment as the sky was clearing up for a white frost, the cold of the water got worse and worse, until I was fit to cry with it. And so, in a sorry plight, I came to an opening in the bushes, where a great black pool lay in front of me, whitened with snow (as I thought) at the sides, till I saw it was only foam-froth.
Now, though I could swim with great ease and comfort, and feared no depth of water, when I could fairly come to it, yet I had no desire to go over head and ears into this great pool, being so cramped and weary, and cold enough in all conscience, though wet only up to the middle, not counting my arms and shoulders. And the look of this black pit was enough to stop one from diving into it, even on a hot summer's day with sunshine on the water; I mean, if the sun ever shone there. As it was, I shuddered and drew back; not alone at the pool itself and the black air there was about it, but also at the whirling manner, and wisping of white threads upon it in stripy circles round and round; and the centre still as jet.
But soon I saw the reason of the stir and depth of that great pit, as well as of the roaring sound which long had made me wonder. For skirting round one side, with very little comfort, because the rocks were high and steep, and the ledge at the foot so narrow, I came to a sudden sight and marvel, such as I never dreamed of. For, lo! I stood at the foot of a long pale slide of water, coming smoothly to me, without any break or hindrance, for a hundred yards or more, and fenced on either side with cliff, sheer, and straight, and shining. The water neither ran nor fell, nor leaped with any spouting, but made one even slope of it, as if it had been combed or planed, and looking like a plank of deal laid down a deep black staircase. However, there was no side-rail, nor any place to walk upon, only the channel a fathom wide, and the perpendicular walls of crag shutting out the evening.