The lady managed to deceive Horace Danby into thinking that she was the lady of the house in her subtle ways. She was dressed up pretty well, just like the lady of the house would be dressed. Also, her manner of talking calmly, the way in which she petted the dog, and her going to the fireplace to straighten the ornaments there showed her familiarity with the place. She regulated her tone and voice according to the situation. Sometimes, she talked in a kind voice. At other times, she spoke in a serious manner. She would laugh occasionally, and then, suddenly, her voice would become sharp. She spoke about how society should be protected from men like Horace. Because of all these things, Horace could not suspect that she was not the lady of the house. He was nervous himself, and was scared of getting caught. The moment he saw that she would let him go, he quickly broke open the safe for her, and promised not to rob again. According to the narrator, he was a ‘good, honest citizen’. This was why Horace could not suspect anything.