"Apparently so; but I was not in Germany twenty-four hours, and the Herr Chief of the Secret Service was familiar with my cousin's appearance and never doubted he was talking to Karl," answered Miller. "On my arrival here I communicated at once with Chief Connor, giving him the credentials I had brought from the London office. By his advice I followed out the instructions given me by the Herr Chief of the German Secret Service, and to all intents and purposes was a German spy. But as I grew to know Baron von Fincke better, I became convinced that another and cleverer man was responsible for the leak in the carefully guarded offices of this government. I suspected everyone," Miller smiled suddenly, "even you, Senator Foster--your peace propaganda fooled me...." "Wait," broke in Miss Kiametia. "Randall shan't be blamed for that; Minna Whitney insinuated that he would not make a peace speech even for me, so I--I...." "Proved her wrong," Foster laughed ruefully. "Mrs. Whitney was a keen student of human nature; but continue, Miller--er--Trent--I won't interrupt again." "Chief Connor confided to me that messages were being wirelessed to German cruisers, and that while the station at Sayville, Long Island, was under surveillance, they were powerless to check the new use of the wireless." Miller drew his chair closer. "I made a study of wireless while at college, and the problem here fascinated me. I finally reached the conclusion ..." "Yes, go on," urged Foster. "That messages to the German cruisers were being relayed from stations close together; in other words, that the station in the heart of this city had a wave length shorter than Arlington's minimum wave length, and the Arlington Radio Station was unable to hear--you already know that a transmitting and receiving station can only hear each other when in tune; that is, the wave length of each must be equal. I therefore established a receiving station in my room with a short wave length--and the result justified my reasoning." "Good!" ejaculated Foster heartily. "But at that, while I had the messages to turn over to Chief Connor, I was still in the dark as to the location of the sender. You know it is impossible to determine the direction or distance of a transmitting station by its waves--a ship at sea cannot be found by wireless unless its bearings are given. I concluded that the transmitting station must be in the vicinity of the government buildings, and the next relay within five miles--a greater wave length could be picked up by Arlington.