David Downing’s WWII thrillers featuring British born Berlin resident John Russell have been hugely satisfying reads, quite as satisfying as Alan Furst. In certain ways a little more satisfying for those of us who like a nice cast of characters. Potsdam Station is the latest. It’s the last days of the Reich, and Russell, his actress girlfriend Effi, and his son Paul are all in Berlin, trying to stay alive as the Allies bomb and shell the bejeebers out of the crumbling capital. Effi and John don’t know if each other is alive. Paul is still in uniform, but much matured from the Hitlerjugend of the earlier Stations. Readers who have traveled via Zoo, Silesian, and Stettin Stations will know what I’m talking about. They’ll be every bit as pleased with Potsdam as with the earlier stops. New readers should start at the beginning.