German Spies in England

Excerpt: "From the outbreak of war until to-day I have hesitated to write this book. But I now feel impelled to do so by a sense of duty. The truth must be told. The peril must be faced. Few men, I venture to think, have been more closely associated with, or know more of the astounding inner machinery of German espionage in this country, and in France, than myself. Though the personnel of the Conf...