Dark Star by Alan Furst

Paris, Moscow, Berlin, and Prague, 1937. In the back alleys of nighttime Europe, war is already under way.

André Szara, survivor of the Polish pogroms and the Russian civil wars and a foreign correspondent for Pravda, is co-opted by the NKVD, the Soviet secret intelligence service, and becomes a full-time spymaster in Paris. As deputy director of a Paris network, Szara finds his own star rising when he recruits an agent in Berlin who can supply crucial information. Dark Star captures not only the intrigue and danger of clandestine life but the day-to-day reality of what Soviet operatives call special work.