"A harmless trinket, but without it the adventure would have been very tame."

"The story of the fan is in the most secret archives of Paris and Washington. When you were packing up in Tokyo to come home on the very last day before your departure a lady called on you whom you knew as Madame Volkoff."

"That dear woman!" exclaimed Mrs. Farnsworth. "We knew her very well."

"Almost too well," cried Raynor. "A cultivated woman and exceedingly clever, but a German spy. She had collected some most interesting data with reference to Japanese armament and defenses, but suspecting that she was being watched, she hit upon a most ingenious way of getting the information across the Pacific, expecting to communicate with German agents in America who could pick it up and pass it on to Berlin. You see, she thought you an easy mark. She got hold of a fan which Montani informs me is the exact counterpart of that one you hold. She reduced her data to the smallest possible compass, concealed it in her fan, and watched for a chance to exchange with you. The astute Montani found the Japanese artisan who had done the tinkering for her and surmised that you were to be made the unconscious bearer of the incriminating papers. Montani jumped for the steamer you were sailing on with every determination to get the fan. His professional pride was aroused, and it was only after he found it impossible to steal the fan that he asked our assistance. He's a good fellow, a gentleman in every sense, and with true French chivalry wanted to do the job without disturbing you in any way."

We pressed closer about Raynor as he took the fan, spread it open, and held it close against a table-lamp. "The third, sixth, and ninth," he counted. "You will notice that those three pieces of ivory are a trifle thicker and not as transparent as the others. Glancing at them casually in an ordinary light, you would never suspect that they had been hollowed out, an exceedingly delicate piece of work. It's a pity to spoil anything so pretty, but——"

He snapped the top of one of the panels, disclosing a neatly folded piece of thin paper.

"If you are all satisfied, I will not go further. I want to deliver this to the French Embassy intact. I expect Montani here to-night; he will no doubt be enormously relieved."

A machine whizzed into the driveway, and Montani came in brushing past the astonished Antoine, who had answered the bell.

"The fan is safe," cried Raynor; "you may complete the identification."

"I've handled this whole affair most stupidly," said Montani after a hurried examination. "I'm satisfied that a German agent in America has picked up the trail of the fan. One or two lines of my own communications failed to work, and after reporting the whole matter to the French Embassy I began searching for a man, the most dangerous of all the German spies, who had been intrusted with the business of recovering Madame Volkoff's fan and passing the contents on to Berlin. This person has been representing himself as a French secret agent; he's enormously plausible. I feared he might attempt what I failed to do. If——"