A Traitor's Heart : Mountain Leopard Press : 9781787396272 : 1787396274 : 13 Oct 2022 : A Times 'Best New Thriller' for May 2022 'Enthralling . . . Sharp dialogue and flashes of dry wit' Financial Times 'Ben Creed has a genuine gift for conjuring up Stalin's Leningrad in all its beauty and misery' The Times 'A cleverly constructed thriller' Sunday Times 'A fantastically tense atmosphere . . . A spine-tingling page-turner' The Sun Leningrad, winter 1952. An invisible killer known as Koshchei - a nightmare of Slavic folklore - stalks the streets, leaving a distinctive and gruesome mark upon its victims. Three thousand kilometres away in a Gulag labour colony, threatened by the vicious criminals who rule the camp and tormented by the Arctic cold, former militia lieutenant Revol Rossel is close to death. But then a brutal saviour descends from the skies: the state security interrogator who years ago ruined his life is back, tasking Rossel with tracking down the murderer. As the hun