Keep on the Shadowfell
Bairwin is the proprietor of “Bairwin’s Grande Shoppe”, a local trade goods store, holding many items that the good folk of Winterhaven may need to buy or sell.
He is the most recent addition to the Winterhaven populace, but still has lived here for over 7 years, established himself, and is by-and-large accepted within town.
However, Bairwin reveals himself to be a loyal servant of Shar, and head of the cult within Winterhaven.
He performs the unholy rite that turns Zalenea into an Aspect of the Shadow Weave, and convinces her to support the fall of Winterhaven.