Detective Harry Hole embarrassed the force, and for his sins he's been reassigned to mundane surveillance tasks. But while monitoring neo-Nazi activities in Oslo, Hole is inadvertently drawn into a mystery with deep roots in Norway's dark past, when members of the government willingly collaborated with Nazi Germany. More than sixty years later, this black mark won't wash away--and disgraced old soldiers who once survived a brutal Russian winter are being murdered, one by one.