Cahokia Jazz by Francis Spufford

In this stylishly drawn mystery novel, the tropes of noir—among them a hardboiled detective with an artist’s soul, a powerful woman with a terrible secret, and a journalist chasing the story of a lifetime—appear in an alternative Jazz Age. Here, Native Americans did not succumb to smallpox, and the powerful and ancient Cahokia nation has joined the United States. This imagined America is studded with names borrowed from the real one: St. Louis might be a mere backwater, but T. S. Eliot is still among its locals. So, unfortunately, is the Klan, which is intent on wresting control of the city from its people and putting it under white, capitalist authority.