The description of the place so well accords with the Peuch that bears his name, that I cannot doubt but that Sour occupied for some years the cave high up in the cliff, and only to be reached by crawling to it sideways, holding on to the rock by fingers and toes. But afterwards it was greatly enlarged to serve as a place of retreat by the peasants of the hamlet below. It consists of three groups of chambers cut in the rock, one reached by a very long, forty-round ladder, when a chamber is entered which has a hole in the roof through which, by another ladder, one can mount to a whole series of chambers communicating one with another. The face of some of these was originally walled up. A second group is now inaccessible. A third is reached by climbing along the face of the cliff, with fingers and toes placed in niches cut in the cleft to receive them. [Illustration: Beginning of a Gallery.] [Illustration: The Pick employed.] A recess at the foot of the crag, arched above, contains three perpendicular grooves. This was the beginning of another artificial cave, never completed, begun maybe in 1453 and suddenly abandoned, as the glad tidings rang through the land that the English had abandoned Aquitaine and that the Companies were disbanded. At the Roc d'Aucor, in the valley of the Vers (Lot), a gaping cave is visible far above where any ladder could reach and inaccessible by climbing from the top of the crag, as that overhangs like a wave about to break. Nevertheless, athwart the opening are, and have been from time immemorial, two stout beams let into the rock horizontally. Dimly visible in the depth of the cavern is some tall white figure, and the peasants declare that it is that of a man--a statue in marble, keeping guard over a golden calf. In 1894, M. Martel and three friends, taking with them Armand, the trusty help in descending _avens_, pot-holes, and exploring the course of subterranean rivers, resolved on an attempt at the exploration of this mysterious cavern.