Two men, seated in a room of the United Service Club in London one gloomy afternoon in November, 1914, talked over the situation in tones too low to reach other ears. The older man, Sir Percival Hargraves, had been bemoaning the fact that England seemed honeycombed by the German Secret Service, and his nephew, John Hargraves, an officer in uniform, was attempting to reassure him. It was a farewell meeting, for the young officer was returning to the front.