This in-depth gazetteer explores the legendary Lands of the Linnorm Kings, anorthern realm of larger-than-life adventure where Viking kings earn the rightto rule by defeating enormous, primeval dragons -- linnorms. From therugged western islands of the Ironbound Archipelago to the battleworn expanseknown as Hagreach in the east, this Pathfinder setting sourcebookcontains detailed treatments of all the major locales in the region. Numerousadventure sites and campaign themes are explored in detail, such as remotetroll-haunted ruins, mysterious locations linked to the eerie realm of the fey,and even a sample linnorm hunt. Rules on weregild (fees for hostages or slainenemies), effigies (mundane and magical ways to strike fear into your enemies),and reputation in this ferocious land are explored, as are several new monstersand pre-built enemy NPCs, such as remorseless longship captains, berserkers, newtrolls, and the most powerful linnorm in the land -- dreadFafnheir!