I looked at him more closely. He was superlatively well-built, light, and lithe and strong; he was well-featured; his yellow eyes were very large, though, perhaps, not very expressive; take him altogether, he was a pleasant-looking lad, and I had no fault to find with him, beyond that he was of a dusky hue, and inclined to hairiness; two characteristics that I disliked. It was his mind that puzzled, and yet attracted me. The doctor's phrase--an innocent--came back to me; and I was wondering if that were, after all, the true description, when the road began to go down into the narrow and naked chasm of a torrent. The waters thundered tumultuously in the bottom; and the ravine was filled full of the sound, the thin spray, and the claps of wind, that accompanied their descent. The scene was certainly impressive; but the road was in that part very securely walled in; the mule went steadily forward; and I was astonished to perceive the paleness of terror in the face of my companion. The voice of that wild river was inconstant, now sinking lower as if in weariness, now doubling its hoarse tones; momentary freshets seemed to swell its volume, sweeping down the gorge, raving and booming against the barrier walls; and I observed it was at each of these accessions to the clamour that my driver more particularly winced and blanched. Some thoughts of Scottish superstition and the river-kelpie passed across my mind; I wondered if perchance the like were prevalent in that part of Spain; and turning to Felipe, sought to draw him out. "What is the matter?" I asked. "Oh, I am afraid," he replied. "Of what are you afraid?" I returned. "This seems one of the safest places on this very dangerous road." "It makes a noise," he said, with a simplicity of awe that set my doubts at rest. The lad was but a child in intellect; his mind was like his body, active and swift, but stunted in development; and I began from that time forth to regard him with a measure of pity, and to listen at first with indulgence, and at last even with pleasure, to his disjointed babble.