"It's a lie," she repeated, visibly agitated, "I did not steal anything. If Miss Cresswell says so——"

"Miss Cresswell is quite ignorant of your treachery," said the other quietly; "but as you are determined to deny that much, perhaps you will tell me this, what business brings you to Doctor van Heerden's flat in the small hours of the morning?"

"Do you insinuate——?"

"I insinuate nothing. And least of all do I insinuate that you have any love affair with the doctor, who does not strike me as that kind of person."

Her eyes narrowed and for a moment it seemed that her natural vanity would overcome her discretion.

"Who says I go to Doctor van Heerden's?"

"I say so, because I have seen you. Surely you don't forget that I live opposite the amiable doctor?"

"I am not going to discuss my business or his," she said, "and I don't care what you threaten me with or what you do."

"I will do something more than threaten you," he said ominously, "you will not fool me, Miss Glaum, and the sooner you realize the fact the better. I am going all the way with you if you give me any trouble, and if you don't answer my questions. I might tell you that unless this interview is a very satisfactory one to me I shall not only arrest Doctor van Heerden to-night but I shall take you as an accomplice."

"You can't, you can't." She almost screamed the words.