An orphaned boy brought up to serve the state as a man. A rich young woman incapable of living by the conventions of society. Neither is prepared for the journey into the heat, mystery, violence and disorienting perpetual daylight of the far North. Stockholm 1856. Magnus is a geologist. When the Minister sends him to survey the distant but strategically vital Lapland region around Blackasen Mountain, it is a perfect cover for another mission: Magnus must investigate why one of the nomadic Sami people, native to the region, has apparently slaughtered in cold blood a priest, a law officer and a settler in their rectory. Is there some bigger threat afoot?