As these thoughts passed through his mind, weariness, the silence of the hour, the darkened room, induced slumber; and although once or twice he made a half-effort to arouse himself and go home, the listless feeling gained the mastery, and he dropped off to sleep. The uneasy consciences have oftentimes very easy slumbers. Norwood's was of the calmest; not a dream, not one flitting fancy disturbed it. It was already nigh day as he lay thus, when the dull roll of wheels beneath the window in part awoke him; at least, it so far aroused him that he remembered where he was, and fancied that it might be George Onslow, on the return from his dinner-party. He lay for some minutes expecting to hear his step upon the stair, and see him enter the room; but as all seemed to resume its wonted quiet, he was dozing off again, when he heard the sound of a hand upon the lock of the door. It is one of the strange instincts of half-slumber to be often more alive to the influence of subdued and stealthy sounds than to louder noises. The slightest whisperings, the low murmurings of a human voice, the creaking of a chair, the cautious drawing back of a curtain will jar upon and arouse the faculties that have been insensible to the rushing flow of a cataract or the dull booming of the sea. Slight as were the sounds now heard, Norwood started as he listened to them, and, at once arousing himself, he fixed his eyes upon the door, in which the handle was seen to turn slowly and cautiously. The impression that it was a robber immediately occurred to him, and he determined to lie still and motionless, to watch what might happen. He was not wanting in personal courage, and had full confidence in his strength and activity. The door at last opened; at first, a very little, and slowly, then gradually more and more, till, by the mysterious half-light to which his eyes had grown accustomed, Norwood could see the flounces of a female dress, and the small, neat foot of a woman beneath it. The faint, uncertain flame of the fire showed him thus much, but left the remainder of the figure in deep shadow. Whether from excess of caution, or that she was yet hesitating what course to take, she remained for some seconds motionless; and Norwood, who had subdued his breathing to the utmost, lay in the deep shadow, speculating on the upshot of an adventure from which he promised himself, at least, an amusing story. The deep black lace which fell over the arched instep indicated a degree of rank in the wearer that gave a piquancy to the incident, and imparted a zest to the curiosity of a man who probably knew no higher pleasure in life than in possessing the secrets of his acquaintance.