Of varsks and winter witches
Of varsks and winter witches is a published Birthright adventure set in the heartless wastes of Vosgaard. It was designed solely for use in RPGA-sanctioned roleplaying sessions and was not made for sale in stores. Instead, retailers could purchase the module containing this adventure and use it for in-store gaming sessions to promote "Tribes of the Heartless Wastes". It is speculated that around 153 stores had this adventure.
However, the author Sean K. Reynolds does say that he wrote it for the Polyhedron magazine as "a tie-in short adventure to go with the Polyhedron-only regional supplement for Vosgard in the Birthright setting".  In fact, Polyhedron only listed which stores had access to the game.
- See Also: The cover sheet of the adventure