by Alan Furst
Houghton Mifflin; 417 pages; $22.95
Imagine discovering an unscreened espionage thriller from the late 1930s, a classic black-and-white movie that captures the murky allegiances and moral ambiguity of Europe on the brink of war. All the treasured cinematic touches that convey a mood of incipient danger are present -- a dead Soviet agent in a waterfront brothel in Ostend, lonely footsteps muffled by the snow on a dark Berlin street, a worn leather satchel with a false bottom left in a Prague railway station. No, they do not make movies like that anymore. But in Dark...