Rogues in the House by Robert E. Howard

It was a reverberating clang of metal that roused Murilo. He groaned and struggled dazedly to a sitting position. About him all was silence and darkness, and for an instant he was sickened with the fear that he was blind. Then he remembered what had gone before, and his flesh crawled. By the sense of touch he found that he was lying on a floor of evenly joined stone slabs. Further groping discovered a wall of the same material. He rose and leaned against it, trying in vain to orient himself. That he was in some sort of a prison seemed certain, but where and how long he was unable to guess. He remembered dimly a clashing noise and wondered if it had been the iron door of his dungeon closing on him, or if it betokened the entrance of an executioner.

At this thought he shuddered profoundly and began to feel his way along the wall. Momentarily he expected to encounter the limits of his prison, but after a while he came to the conclusion that he was travelling down a corridor. He kept to the wall, fearful of pits or other traps, and was presently aware of something near him in the blackness. He could see nothing, but either his ears had caught a stealthy sound, or some subconscious sense warned him. He stopped short, his hair standing on end; as surely as he lived, he felt the presence of some living creature crouching in the darkness in front of him.