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 hunt continues, the two men uncover riddle after riddle, including a clue to finding a weapon of unimaginable power – a weapon the Kremlin's scheming plotters will kill for...