Based on a true story, a gripping historical novel about a German immigrant who becomes embroiled in a Nazi spy ring operating in New York City in the early days of World War II.At the end of the 1930s, Europe is engulfed in war. Though America is far from the fighting, the streets of New York have become a battlefield.Anti-Semitic and racist groups spread hate, while German nationalists celebrate Hitler’s strength and power. Josef Klein, a German immigrant, remains immune to the troubles roiling his adopted city. The multicultural neighborhood of Harlem is his world, a lively place full of sidewalk tables where families enjoy their dinner and friends indulge in games of chess. Josef’s great passion is the radio.His skill and technical abilities attract the attention of influential men who offer him a job as a shortwave operator. But when Josef begins to understand what they’re doing, it’s too late; he’s already a little cog in the big wheel—part of a Nazi espionage network working in