"Mrs. Jonathan Moulton," said the special agent glibly, giving the name of a woman friend. "She lives in Seventy-second Street."

"Do you mind if I call her for a confirmation of your inquiry?" said the broker, still noncommittal.

"Such a request is not usually addressed to a prospective customer," said Gard, appearing a bit nettled, "but I have no objection whatever."

As a matter of fact the special agent was very much disconcerted. He had foreseen the possibility of having to use the name of some individual who might afterward be called upon to verify the genuineness of his interest in linens. Mrs. Moulton was a good friend who would be entirely willing to help him in a little deception of this sort, but he had not as yet coached her as to the part she might be called upon to play. He had thought there would be plenty of time later if it became necessary to identify the supposed customer. But Berliner was evidently suspicious of bright young men who called upon him. He evidently knew that he was under investigation. Gard's particular hope, if the broker insisted on calling his alleged sister, was that he would find that she was not at home.

But luck was not with him. Mrs. Moulton herself answered the telephone.

"May I ask," said the broker, "if you will give me the name of the young man whom you have commissioned to buy linens for you?"

The manner in which the question was put, Gard realized, gave Mrs. Moulton no intimation of the situation. He knew she was sufficiently clever to be entirely noncommittal if the broker mentioned his name. But Berliner was too shrewd for this.

"You have authorized no one to buy for you?" the broker was saying. "You are not in the market for linens at all? I see. There must have been some mistake."

Berliner turned to his caller.