Early in February of 1917 we became aware that German spies were making a persistent attempt to get into our home to find out when the _Mongolia_ was sailing, and if the ship was to be armed. The first spy came up the back stairs in the guise of an employe engaged in delivering household supplies. He accomplished nothing, and the incident was dismissed from our minds, but the second spy came up the front stairs and effected an entrance, and this event roused us to the dangers around Captain Rice even in his own country and showed the intense determination of the Germans to prevent, if they could, any more big cargoes of munitions reaching England on the _Mongolia_. Our second visitor was a man who had been an officer in the German Army years before. After leaving Germany he came to the United States and became a citizen. [Sidenote: A German-American turns German spy.] In August, 1914, when the Huns invaded Belgium, he became all German again and returned to Europe to serve with the German Army on the French front, from which region he was ordered by the German Government back to the United States, where his command of English and knowledge of the country made him valuable to the propaganda and spy groups here. All this and much more I found out shortly after his visit, but the afternoon he called I (I was alone at the time) received him without suspicion, since he said he came to pay his respects to Captain Rice, whom he had known in China. [Sidenote: Deceiving the spy.] It was not until his apparently casual questions about the time of the _Mongolia's_ sailing and whether she was to be armed became annoying that "I woke up," and looking attentively at this over-curious visitor, I encountered a look of such cold hostility that with a shock I realized I was dealing with a spy, one who was probably armed, and who appeared determined to get the information he sought. In a few seconds of swift thinking I decided the best thing to do was to make him believe that Captain Rice himself did not know whether his ship was going out again, and that no one could tell what course of action the ship owners would take. After forty minutes of probing for information he departed, convinced there was no information to be had from me. [Sidenote: How signals could be sent by German agents.]