"It taketh a scholard to understand it," said Mary. "When he putched a-telling I couldn't sense 'en, but I knows now it bain't serious. A brave larned man be Master. There bain't many like 'en."

The invalids were pretty well by that evening. Their pains were departing, and Mary was able to hunt again for Old Sal and bewail her lost groceries, while Peter turned his attention towards establishing electric light into the two hut-circles. He had brought back from Tavistock two little bottles with taps, hairpins, and bits of rope complete, also mystic circles made of china, which, he had been informed, were used for securing the completed article to the roof, and nearly a mile of thin wire, which he had picked up very cheaply, as it was getting rusty.

The wire had excited Mary's amazement, but Peter refused to give her any information concerning it. He had enjoyed an instructive conversation with the man in the shop, who perceived that Peter was a savage, but did not on that account refuse to sell him the required articles. Peter asked how the light was made, and the answer "with water," or words to that effect, so stunned him that he heard nothing for the next few moments. If it could be true that fire and heat were made out of water he was prepared to believe anything. The man seemed to be serious and not trying to make a fool of him; for he went on to explain that the light was conveyed from the water by a wire which communicated with the little bottles—he showed Peter that what he had mistaken for a piece of rope was in reality twisted wires—over any distance, although more power would be required if the house to be lighted was far from the water. The word "power" was explained to Peter's satisfaction as meaning a strong current, preferably a waterfall. The entire art of electrical engineering became clear to Peter at once. He remembered how the ignorant little girl in the lodging-house had mentioned the telegraph wires which had been put about the house. The child could not be expected to understand what the wires were for—Peter had not much tolerance for such stupidity—but it was evident, after the shopman's explanation, that those wires communicated with the Tavy and brought the light into the lodging-house from its waters. If the river at Tavistock, which is wide and shallow, could give forth light of such excellent quality, what might not be expected from the rushing torrent of Tavy Cleave? Peter perceived that every difficulty had been smoothed away.

"Best tak' they old lamps to the village and sell 'em," he said, with vast contempt for old and faithful servants. "Us ha' done wi' they. Us will ha' lights in our bottles avore to-night." He had hung them up already, one in his own hut, the other in Mary's, and they looked splendid hanging from the beams. "Like a duke's palace," according to the electrician.

"Aw ees, I'll sell 'em," said Mary, getting out a bit of sacking to wrap the old lamps in. "Us won't be mazed wi' paraffin and wicks and busted glasses. I'll tak' 'em' to Mother Cobley, and see if her will give us two or dree shilluns for 'em."

Mary went off with the lamps, which Peter's science was about to render superfluous, while the little man took up his bundles of wire and stumbled down the cleave, to put the hidden radiance of the Tavy into communication with their humble dwellings.

It was very pleasant down by the river that crisp October afternoon; the rich autumnal sun upon the rocks, the bracken in every wonderful tint of brown and gold, the scarlet seed-clumps of bog asphodel, and the trailing red ropes of bramble sprinkled with jetty berries, full of crimson blood like Thomasine's cheeks. It was nearly a month past Barnstaple Fair, and yet the devil had not put his foot upon the blackberries. The devil is supposed to attend Barnstaple Fair in state and tread on brambles as he goes home; which is merely the pleasant Devonshire way of saying that there is generally a frost about Barnstaple Fair week which spoils the fruit. The fairy cult was much prettier than all this demonology, but when education killed the little people there was only the devil to fall back upon; and though education will no doubt kill him in due time it has not done so yet.

Peter trampled among the brambles and swore at them because they caught his legs. He saw nothing beautiful in their foliage. It was too common for him to admire. The colours had been like that the year before; they would be the same the year after. Peter appreciated bluebells and primroses because they were soft to walk upon; but the blood-red "brimmles" only pricked his legs and made him stumble; and the golden bracken was only of use in the cow-shed, or in his hut as a floor-litter; and the gracious heather was only good for stuffing mattresses; and the guinea-gold gorse would have been an encumbrance upon the side of the moor had it not been so useful as a thatch for his hut, and a fence for his garden, and a mud-scraper for his boots. Peter, though very much below the ordinary moorman, was artistically like them all—insensible to beauty which is not of the flesh. Not a Dartmoor commoner would pause a moment to regard the sun setting and glowing in a mist upon the tors. Yet a Cornish fisherman would; and a Norman peasant perhaps would take off his hat and cross himself, not so much with a sense of religion, as because there is something in his mind which can respond to the beauty and poetry and romance of the sun in a mist. Possibly, with the Dartmoor commoner, it is his religion which is to blame. His faith is as dark and ugly as the bottom of a well. The Cornish fisherman has his Cymric blood, his instincts, his knowledge of folklore, to help him through. The Norman peasant has the daily help of gleaming vestments, glowing candles, clouds of sun-tinted incense—pretty follies perhaps, but still pretty—the ritual of his mass, and the Angelus bell. But the Dartmoor commoner has little but his hell-fire.

In the midst of all the splendour of Tavy Cleave on fire with autumn, Peter the ridiculous unwound a portion of the first roll of wire, and pondered deeply. It seemed absurd even to him to place the end into the water and leave Nature to do the rest; but he couldn't think of any other method. The shopman had distinctly mentioned wire and waterfalls, and both were ready to hand. As Peter went on to consider the matter it became clearer in his mind. The ways of Nature are incomprehensible. There were lightning-conductors, for instance. They were just bits of wire sticking aimlessly into the air, and apparently they caught the lightning, though Peter was not sure what they did with it. To put a piece of wire into a waterfall to attract light could not be more absurd than to erect a bit of wire into space to catch lightning. It was amazing certainly, but Peter had nothing to do with marvels, except to turn them to practical account. Once, when he was ill, a doctor had come to visit him armed with a little instrument which he had put against his chest and had then looked right inside him. Peter knew the doctor had looked inside him, because he was able to describe all that he saw. That was another marvellous thing, almost as wonderful as extracting light and heat from cold water.

There was a waterfall lower down, and below it a pool fringed with fern and boiling with foam. It was an ideal spot, thought Peter, so he went there, and after fastening his wire to a stone, dropped it into the pool at the foot of the falls. The silver foam and the coloured bubbles laughed at him, and had Peter been blessed with anything in the form of an imagination, he might have supposed they were inviting him to play with them, and the sunlight made a rainbow out of flying foam. The scene was so full of radiance that Peter easily believed how brilliantly the hairpins in the bottles would presently be glowing.