She gave her mind so completely to him that she took no note of their route, save that they kept the valley, which preserving its flat bottom now ran between hills of a wilder aspect. It was only when the troopers, at a word from the Lieutenant, closed in about the litter, that she observed--though it had been some time in sight--the object which caused the movement. This was a small hill-town, girt by a ruinous wall, and buckled with crazy towers, which topped an acclivity on the right of the valley, and commanded the road. The suspicion with which her escort regarded the place did not surprise her when she remarked the filthy forms and wild and savage faces which swarmed upon the wall. There were women and children as well as men in the place, and all, ragged and half naked, mopped and mowed at the passers, or, leaping to their feet, defied them with unspeakable words and gestures. The Abbess looked at them with daunted eyes. There was something inhuman in their squalor and wildness. "Who are they?" she asked. "Crocans," the nearest rider answered. "But we are not going to them?" she returned in astonishment. She had heard that they were bound for the peasants' camp, and her lip had curled at the information. But if these were Crocans--horror! The man spat on the ground. "That is one band, and ours is another," he replied. "All canaille, but--not all like that, or we had some strange bed-fellows indeed!" He would have said more, but he caught the Lieutenant's eye, and was silent and five minutes later the Abbess saw a strange sight. The riders before her wheeled to the left, and, bending low in their saddles, vanished bodily in the rock that walled the road on that side. A moment later she probed the mystery. In the rock wall which fenced the track on the left, as the river fenced it on the right, was an arched opening, resembling the mouth of a cave--of one of those caves so common in the Limousin. Within was no cave, however, but a spacious circus of smooth green turf open to the heaven, though walled on every side by grassy slopes which ran steeply to a height of a hundred feet. There was no entrance to the basin, but neither its defensible strength, nor the wisdom of the Crocans in choosing it, was apparent until the green rampart cast about it by nature was examined and found to be so scarped on the outer side as to form here a sheer precipice, there a descent trying to the most active foot. A spring near the inner margin of this natural amphitheatre fed a rivulet which, after passing across it, and dividing it into two unequal parts, escaped to the river through the rocky gateway.