It's a disconcerting novel. Our heroine keeps dying- and every time she does she comes back to experience the bloody history of the bloody 20th century from a slightly different angle. In several lives she's blitzed in London; in one she's blitzed in Berlin. In the very first chapter she shoots Hitler in a Munich coffee house. Want to find out why? Well, on 11 February 1910....
Atkinson describes the construction of the book as "slightly fractal".
Go on, read it.