The Last Vendée by Alexandre Dumas — Read

It was about four in the afternoon when Michel, thrust into the lock-up of the guard-house at Saint-Colombin, became aware of the delights of that abode. On entering what seemed to be a dungeon, the young man's eyes, accustomed to the brilliant light without, could distinguish nothing around him. Little by little they grew accustomed to the darkness, and then their owner was able to make out the sort of lodging he was in.

It was partly under and partly above the surface of the ground; its walls were of thicker and more solidly constructed masonry than was usual in such buildings, for the reason that it supported the walls of the house above it. The floor was bare earth; and as the place was very damp, that earth was nearly mud. The ceiling was of beams, placed very near together. The light usually entered through a grating placed just above the level of the ground; but owing to the necessities of its present use this aperture was closed inside by heavy planks, and outside by an enormous millstone placed vertically in front of it. A hole in the centre of the stone gave entrance to a feeble ray of light, of which two thirds was intercepted by the plank shutters, so that it only cast a single weird gleam into the middle of the cellar.