The Dark Tunnel (Chet Gordon Series #1)

On the home front, two wartime lovers reunite under a cloud of paranoia in this thriller from Mystery Writers of America Grand Master Ross Macdonald
In 1937 Munich, an American must be careful when he smokes his pipe. Robert Branch, a careless academic, makes the mistake of lighting up when the Führer is about to begin a procession, and nearly gets pummeled for his mistake. Only the timely intervention of Ruth Esch, a flame-haired actress, saves him. So begins a month-long romance…