THE CELL DOOR SLAMMED BEHIND RUBASHOV.
He remained leaning against the door for a few seconds, and lit a cigarette. On the bed to his right lay two fairly clean blankets, and the straw mattress looked newly filled. The wash-basin to his left had no plug, but the tap functioned. The can next to it had been freshly disinfected, it did not smell. The walls on both sides were of solid brick, which would stifle the sound of tapping, but where the heating and drain pipe penetrated it, it had been plastered and resounded quite well; besides, the heating pipe itself seemed to be noise-conducting. The window started at eye-level; one could see down into the courtyard without having to pull oneself up by the bars. So far everything was in order.
Arthur Koestler, Darkness At Noon, Bantam Books, 1966.