"Yes—sir." Her tone was doubtful: evidently the point was a little beyond her.
"If a stranger had tapped on the window would Mr. Benson have admitted him without his toupee?"
"Oh, no—he wouldn't have let a stranger in."
"You are sure the bell didn't ring that night?"
"Positive, sir." The answer was very emphatic.
"Is there a light on the front steps?"
"No, sir."
"If Mr. Benson had looked out of the window to see who was tapping, could he have recognized the person at night?"
The woman hesitated.
"I don't know—I don't think so."
"Is there any way you can see through the front door who is outside, without opening it?"
"No, sir. Sometimes I wished there was."
"Then, if the person knocked on the window, Mr. Benson must have recognized the voice?"
"It looks that way, sir."
"And you're certain no one could have got in without a key?"
"How could they? The door locks by itself."
"It's the regulation spring-lock, isn't it?"
"Yes, sir."
"Then it must have a catch you can turn off so that the door will open from either side even though it's latched."
"It did have a catch like that," she explained, "but Mr. Benson had it fixed so's it wouldn't work. He said it was too dangerous,—I might go out and leave the house unlocked."
