“When he first speaks to you, he will glance at his watch. He will appear to note that the time is wrong. He will ask you the correct time; he will set his watch five minutes in advance of yours.”

Harry waited silently for further instructions.

“Tune in on Station WNX at six and nine — if a radio set is available, and you find it possible. Notify me if you are able to do that, when you send your first report. It may prove valuable later on.

“Find out all you can about Professor Whitburn. Study the personnel of his establishment. Learn who is there, and why they are there. You have a real job ahead of you.”

HARRY made mental notes of all that Fellows had told him. Some of his instructions were familiar because of his previous work in the service of The Shadow.

“Have you seen Bruce Duncan?” questioned the insurance broker. “That is, since the day when you had lunch with him?”

“No. I have not.”

“We must communicate with him. It would be inadvisable for you to see him. I shall attend to the matter. He is at his country home, I suppose?”

“I have called him there, but have received no answer. I suppose he was in the city, and his servant was not at home. You should be able to reach him there. How is he concerned in this matter?”

Fellows shrugged his shoulders.