'Intricate, fast moving . . . by the time I finally put the book down, long after midnight, I was in tears' The TimesWinter, 1916. In St Petersburg, snow is falling in a country on the brink of revolution. Beautiful and headstrong, Sashenka Zeitlin is just sixteen. As her mother parties with Rasputin and her dissolute friends, Sashenka slips into the frozen night to play her role in a dangerous ga...