Nick looked quickly at his assistant.

Then he turned to the photographer.

“Will you leave this with us?” he asked. “I shall see that you are well paid for it.”

“Oh! I don’t care for any pay,” replied the young man. “I shall be glad if it helps you. Good-night.”

He left them, and Patsy made his report.

“I laid for Claymore, as you told me,” he said, “and after chasing him around town for a while, I found at last that he had gone to the office of the oil company. He spent the whole evening there.”

“Well?”

“There was nothing for me to do but stay around. I was pretty sure that any attempt to find out what Claymore was doing would make him suspicious. So I didn’t go into the building even, but stayed outside on the other side of the street.

“It was a dull wait till a while ago.

“Then something happened.