William Le Queux 
The German Spy System from Within 

The amazing ramifications of the German spy system in England are, unfortunately, not even today fully realised by the British public, or admitted by the Government.In face of the hard facts contained in this book, in face of the serious statements of Members in the House of Commons, and in face of what the public are themselves daily reporting to the “authorities, ” the present apathy of the Government, and its refusal to admit the peril and deal with spies with a firm hand, is little short of criminal.Seven years before the outbreak of war, by a mere accident while in Germany, I was able to place before the Intelligence Department of the War Office certain facts which, on being thoroughly investigated, resulted in the establishment of a department for contra-espionage. Therefore, however lightly the Government may today affect to treat the question, the fact remains that they have, all along, known of the existence of a horde of German secret-agents in our midst.