Brynjolfr is a Nord blacksmith living in a hut just north of Thirsk. He can craft Snow Bear Armor if provided with snow bear pelts or Snow Wolf Armor if provided with snow wolf pelts. He provides a non-negotiable price list for this service upon request. He is also a merchant and buys/sells various armor and weapons. Brynjolfr has information on a missing missionary that may prove useful.
When asked about Mirisa, he will say that Erich the Unworthy had done something with her, but he doesn't know where she is.
Brynjolfr will be one of the few survivors after the attack on Thirsk. When asked about what happened he will say the Udyrfrykte came, killed his customer, then proceeded to enter the mead hall and kill some of the patrons within. After that he saw the beast go back to the cave after being driven off by arrows.