After dinner I returned to the chimney-corner which was decidedly the most comfortable place in the inn, in spite of the smoke and the close neighbourhood of soot, and set about obtaining information from the aubergiste and his cronies who had dropped in concerning the exact whereabouts of a Celtic town whose ruined fortifications, I knew, were to be found somewhere among the barren hills to the west of Vers. It was some time before I could make these men understand what I was really in search of, and when they understood they seemed to think I was a little mad, until the idea struck them that I might be a dealer in antiquities, hoping to pick up certain odds and ends that would repay me for the trouble of walking to such a desolate and uninteresting spot.

At length I gathered that the site of the ancient oppidum was at Murcens, a hamlet upon a hill, half a day's walk away to the west, and that the best way to reach it was to follow the valley of the Vers. At about seven o'clock the next morning I started, and, having been warned that I should find no inn where I could get a meal, I took with me some provisions.

It was a gray, dreary morning, and at that hour the weather could not have been more November-like had I been upon the banks of the Severn or the Trent, instead of being by one of the rivers of our ancient southern province of Guyenne.

As I turned westward up the valley of the Vers, I passed under detached fragments of the aqueduct built by the Romans to carry water to Cahors. By taking advantage of the rocks which hem in the narrow valley, they saved themselves the trouble of raising arches to the desired height to ensure the flow. The conduit is carried along upon a ledge hewn out of the natural wall, projecting masses of rock being cut through with the hammer and chisel. The masonry is of undressed stone, but so firmly cemented that it is scarcely less solid than the rock itself.

Where an inconvenient buttress projected, a narrow passage was cut through it for the channel, and the marks of the chisel look as fresh as if they had been lately made. Much of this aqueduct was destroyed in quite recent days, when the rocks were blasted to make room for the road to Cahors. The Romans may have thought of many destructive agencies being employed upon their work, but dynamite was certainly not one of them. Box and hellebore, bramble and dogwood, moss and ferns, have been striving for centuries to conceal all trace of the conduit, and those whose foreknowledge did not lead them to look for it might easily pass by without observing it.

The road followed the stream, now a furious torrent that a man on horseback could hardly ford without risk of being carried away. Two or three weeks previously a mere thread of water wound its way amongst the stones in the centre of the channel. It is one of the many streams which in Guyenne gradually disappear in summer, but at the return of winter fill the long-scorched and silent valleys with the sound of roaring waters. On either side of the gorge rose abrupt stony hills thinly wooded, chiefly with stunted oak, or escarped craggy cliffs pierced with yawning caverns. There was no sunshine, but the multitude of lingering leaves lit up all the desert hills with a quiet, solemn flame. Here and there, amidst the pale gold of the maple or the browner, ruddier gold of the oak, glowed darkly the deep crimson fire of a solitary cornel. In steady, unchanging contrast with these colours was the sombre green of the box.

The stream descends in a series of cascades, and there is a mighty roar of waters. For many yards I have for a companion a little wren, that flies from twig to twig through the well-nigh naked hedge along the wayside, now hidden behind a bramble's crimson-spotted leaf, now mingled with a tracery of twigs and thorns. I can almost believe it to be the same wren that kept up with me years ago in English lanes, and since then has travelled with me so many miles in France, vanishing for long periods, but reappearing as if by enchantment in some roadside hedge, its eyes bright with recognition, and every movement friendly. Whimsical little bird, or gentle spirit in disguise, we may travel many a mile together yet.

My thoughts were turned from the wren by a carrier's cart, which the people of the country would term a diligence. It was like a great oblong box with one end knocked out, set on wheels. The interior was a black hole, crammed with people and bundles. When I looked for my little feathered friend it was gone, but we shall meet again.

Two or three miles farther up the valley, near a small village or hamlet, I crossed a low bridge over the Vers, and by following the road on the other side, still ascending the course of the stream, I came to a spot where a volume of water that would soon have filled a large reservoir flowed quietly out of a little hollow at the foot of great rocks. It was the Fountain of Polémie which, on account of its abundant flow in all seasons, is supposed to have been the source from which the Romans led their aqueduct to Divona—now called Cahors. The water of this fountain, which derives its name from Polemius, a Roman functionary, is of limpid purity, and its constancy proves that it rises from a great depth. The Romans must have carried the water on arches across the valley, and probably for a considerable distance down it, before they made use of the natural wall of rock in the manner described, but not a trace remains of the arches, or even of the piers.

In order to reach the tableland of Murcens, it was necessary to cross again the roaring torrent of the Vers, and after several vain attempts to do so, by means of the rocks lying in its bed, I came to a bridge which solved the difficulty. The scene was now sublimely rugged and desolate. On each side the majestic rocks reared their ever-varying fantastic shapes towards the sky.