“Quite so.”
“How frequently did you see him?”
“Sometimes every month, but generally not oftener than once in two or three months.”
The prompt and apparently truthful way in which the girl was answering puzzled the detective anew.
If this was acting, then it was the finest that he had ever seen.
And were not the proof so strong the other way, he would have cast all suspicion to the winds, and said:
“This girl is what she seems, an honest, upright, high-principled girl!
“But the letter?
“What could be better than dumb evidence?”
The girl must be lying. But as long as she appeared willing to answer it might be as well to go on questioning her, using his judgment to sift out what was truth and what untruth.