"How about the receipt?" I asked.

"You can come back this afternoon and sign that. There are one or two other papers I shall have ready for you by then."

"That will just suit me nicely," I said. "I can go round to Cockspur Street first and interview the Planet people, then I shall know exactly where I am."

Taking his hat from a peg behind the door, Mr. Drayton led the way downstairs. In the small room on the ground floor a large, burly man with a close-cropped moustache and a chin like the toe of a boot was standing with his back to the fireplace.

"Morning, Campbell," said Mr. Drayton. "Let me introduce you to Mr. John Dryden, whom you were clever enough to find for me."

The Inspector stepped forward.

"Pleased to meet you, sir," he observed, extending an enormous hand.

"Mr. Dryden has invited us both out to lunch," continued the lawyer. "He wants us to assist him in celebrating his sudden accession to wealth."

The Inspector moistened his lips with the tip of his tongue.

"Always glad to oblige a friend of yours, Mr. Drayton," he replied affably.