“Good work, Willie,” said the Special Agent. “You have really done something worth while. Your discovery will break up this sort of thing for a time.”

“I don’t know whether it will or not,” said Willie, suddenly rueful, “for there isn’t any such fellow as Marrash Roukas. At least we can’t find any trace of him.”

“How’s that?”

Willie told Mr. King of their vain search. He replied, “Well, you’ve stumbled on an unusually interesting case.”

“It will be more interesting if we find Roukas,” said Willie. “But I don’t know how we are ever going to do that.”

Mr. King did not seem disturbed. “We’ll let him find himself,” he said.

“What do you mean?”

“Let’s wait until Easterly disposes of the case,” said the Treasury Agent. “Then we’ll know all about it.” And that was all the comfort Willie could get from his superior.

But Willie didn’t have to wait nearly as long to learn the conclusion of the story as he had feared he would. Before the office closed that evening, Mr. Easterly came swinging up the corridor.

“Got him,” he said to Willie. “He’s in the Tombs prison now.”