The rock has been excavated throughout, and in places built into, and on to. Two flights of steps cut in the cliff give access to the main portion of the castle. That on the right leads first of all to the Governor's room, hewn out of a projecting portion of the rock floored with tiles, with a good fireplace and a broad window, commanding the Loir and allowing the sun to flood the room. The opening for the window formerly contained a casement. There is a recess for a bed, and there are in the sides numerous cupboards and other excavations for various purposes. This chamber is entered through that of the sentinel, which was also furnished with a fireplace. The stair leads further up to a large hall artificially carved out of the chalk, but not wholly, for there had been originally a natural cavern of small dimensions, which had a gaping opening. This opening had been walled up with battlements and loopholes, but the old woman to whom the rock or this portion of the rock belongs, and who is a cave-dweller at its foot, has demolished the wall to breast-height, so as to let the sun and air pour in, for she uses the cave as a drying place for her wash. From this hall or guard-room two staircases cut in the rock lead to other chambers also rock-hewn higher up. The second main stair outside gives access to a second series of chambers. Unfortunately, some rather lofty modern buildings have been erected in front of this cliff castle, so as to render it impossible to make of it an effective sketch or to take a satisfactory photograph. Still more interesting is La Roche Corail below Angoulême on the river Charente, opposite Nersac and the confluence of the Boeme with the Charente. Where is now a bridge was formerly a ford. The castle of Nersac commanded one side of the valley, and La Roche Corail the other. This cliff castle was at one time very extensive. The rock rises from a terrace partly natural and partly artificial, on which a comparatively modern château has been erected that masks the rock-face. But on entering the court behind the château the bare cliff is seen with a yawning opening halfway up, and indentations in the wall of rock show that at one time there were hanging barbacans and chambers suspended before the rock as well as others hewn out of it. To reach the interior it is necessary to enter a grange that has been built at right angles to the rock, and in it to mount a ladder to another granary that occupies a floor of solid rock. Thence a second ladder leads into the caves. Formerly, however, the ascent was made by steps cut in the side of the cliff, and openings from within enabled the garrison with pikes to precipitate below any who were daring enough to venture up the steps uninvited.