Go Set a Watchman by Harper Lee, book review: A rough draft, yes, but more radical and politicised than To Kill a Mockingbird

It is 20 years after Depression-era Maycomb, in the backwaters of Alabama, held its doomed race trial in Harper Lee’s To Kill a Mockingbird. Jem is dead of a heart attack; Dill is away in Italy; Atticus Finch has evolved into a small-town bigot who reads pamphlets on “The Black Plague” and regards “our Negro population as backward”.