A faceless threat lurks in the Viking empire. For decades, a sinister band of assassins has watched and waited, hiding among the robust population of Kalsgard, the capital of the fierce Lands of the Linnorm Kings. Throughout this time, their mysterious prey has remained hidden, but not anymore. With their target revealed, death stalks the streets of a city of tough warriors and Viking raiders. After traveling from distant lands to the famous city, the heroes prepare to take the first steps of an expedition to one of the most fearsome wilderness areas in the world. But there is never anything easy in dangerous Kalsgard, and soon they are attacked by mysterious assassins. Can the heroes defend themselves and their friends from the blades of supernatural killers? Or will they perish in the ice and snow?