From the publisher's website:
Information in the Shadow Lodge headquarters in Whitethrone leads you into the Realm of the Mammoth Lords in search of an abandoned tower of a lost Ulfen king. The powerful weapon rumored to be there could be disastrous if it falls into the hands of those who plot the Pathfinder Society’s destruction; who will find it first?
Keep of the Huskarl King is part three of the three-part Shades of Ice campaign arc. It follows Pathfinder Society Scenario #2-15: Shades of Ice-Part I: Written in Blood and Pathfinder Society Scenario #2-17: Shades of Ice-Part II: Exiles of Winter. All three scenarios are intended to be played in order.
A Pathfinder Society Scenario designed for 1st to 5th level characters (Tiers: 1-2 and 4-5).
This scenario is designed for play in Pathfinder Society Organized Play, but can easily be adapted for use with any world. This scenario is compliant with the Open Game License (OGL) and is suitable for use with the Pathfinder Roleplaying Game.