New York: G.P. Putnams & Sons, 1941. — 318 p.
The revolution of espionage. Colonel Nicolai takes a trip - A meeting - Architect Himmler - The end of the Romantic Era - B4 can't convince Baldwin - Maginot line of espionage. The dangerous age of the Deuxieme Bureau - What price U.S.A.? - Splendid isolation of the I.S.- Chismes and Chistes - Lord Runciman goes to Prague - The case of the German tanks. Peace in our time. Hess, the organizer - The dual foreign politics - Herr Bohle covers the globe - The special envoys of Dr. Goebbels - Schools for spies - Mobilization in our time - Intermezzo: clouds of spies. The debacle. The friends of Monsieur Bonnet - Paris: spy center - B4 has an idea - Curtain for France. Tomorrow, the world. Hjalmar Schacht does his bit - Espionage in the Lebensraum - Eugen Ott goes to Japan - Spy axis - Casa Chica - No secrets in South America. The counterrevolution of espionage. Awakening - B4 acquires allies - Twilight - Story of a strange flight - F.B.I. - The unknown soldiers of espionage