M. Noirtier was sitting in an armchair, which moved upon casters, in which he was wheeled into the room in the morning, and in the same way drawn out again at night. He was placed before a large glass, which reflected the whole apartment, and so, without any attempt to move, which would have been impossible, he could see all who entered the room and everything which was going on around him. M. Noirtier, although almost as immovable as a corpse, looked at the newcomers with a quick and intelligent expression, perceiving at once, by their ceremonious courtesy, that they were come on business of an unexpected and official character.