At a quarter past four, the wife of Schiller came to the house with a little child, and a stocking she was knitting. She wanted to know if her husband had gone with the boy to Eberstadt, a place about four miles distant. She went to the back-door. It was not fastened, but on being opened rang a bell, like a shop door. Near it were two rooms, one occupied by Schiller, the other by Stauff. The wife went into her husband's room and found it empty. Then she went into that of Stauff. It also was empty. She returned into the entrance hall and listened. Everything was still in the house. She stood there some little while knitting and listening. Presently she heard steps descending the backstairs, and saw Stauff, with an apron about him, and a duster in his hand. She asked him if her husband had gone to Eberstadt, and he said that he had. Then she left the house. Stauff, however, called to her from the window to hold up the child to him, to kiss. She did so, and then departed. Shortly after five, Schämbs returned to the stable, put in the horses, and drove to the palace without seeing Stauff. He thought nothing of this, as Stauff usually followed on foot, in time to open the coach door for the Count. On this occasion, Stauff appeared at his post in livery, at a quarter to six. At half-past six both returned with their master to the house in Neckar Street. Accordingly, from half-past three to a quarter past four, and from half-past four to half-past five, Stauff was alone in the house with the Countess. But then, from a quarter to five to half-past five she was quite alone, and it was possible that the murder was committed at that time. The Count, it will be remembered, on his return, went upstairs and knocked at the door of the Countess' apartments, without meeting with a response. Probably, therefore, she was then dead. At seven o'clock the coachman went away, and Stauff helped the Count to take off his court dining dress, and put on a light suit. He was with him till half-past seven, when the Count went out for a walk. The Count returned at half-past eight; during an hour, therefore, Stauff was alone in the house with the Countess, or--her corpse. What occurred during that hour? Here two independent pieces of evidence come in to assist us in determining what took place. At five minutes past eight, Colonel von Stockhausen had seen the column of black smoke issue from the chimney of the house; it ascended, he said, some fifteen feet above the chimney, and was so dense that it riveted his attention whilst he was talking to a lady. At about a quarter-past eight the smoke ceased.