“They didn’t give us the least bit of trouble at the dock,” she answered. “I wish I’d brought in a trunk full of dutiable things. They hardly looked at my belongings.”

“That sometimes means,” Denby explained, “that there will be the greatest possible trouble afterwards.”

“I don’t see that,” Nora asserted. “How can it be?”

“Well,” he returned, “according to some articles in McClure’s a few months ago by Burns, very often a dishonest official will let a prominent woman like Mrs. Harrington slip through the lines without the least difficulty—even if she is smuggling—so that afterwards he can come to her home and threaten exposure and a heavy fine. Usually the woman or her husband will pay any amount to hush things up. I was thinking of that when I advised Mrs. Harrington to declare everything she had.”

“But you said a whole lot more than that,” Mrs. Harrington reminded him. “When our baggage was being examined at Dover, you spoke about that man of mystery who is known as R. J. It was cumulative, Mr. Denby, and on the whole you did it rather well. My bank-book is a living witness to your eloquence.”

Ethel asked rather eagerly, “But this R. J., Mr. Denby, what is he?”

“I’ve heard of him,” Michael answered. “Some man at the club told me about him, but I very soon sized that matter up. If you want to know my opinion, Ethel, R. J. is the bogey man of the Customs. If they suspect an inspector he receives a postal signed R. J., and telling him to watch out. It’s a great scheme, which I recommend to the heads of big business corporations. I don’t believe in R. J.”

Ethel looked up at Denby brightly. “But you really believe in him, don’t you?”

“I only know,” he told her, “that R. J. has many enemies because he has made many discoveries. Unquestionably he does exist for all Mr. Harrington’s unbelief. He’s supposed to be one of these impossible secret service agents, travelling incognito all over the globe. He is known only by his initials. Some people call him the storm-petrol, always in the wake of trouble. Where there is intrigue among nations, diplomatic tangles, if the Japs steal a fortification plan, or a German cross-country aeroplane is sent to drop a bomb on the Singer Building, R.J. is supposed to be there to catch it.”

“What an awfully unpleasant position,” Nora shuddered.