The tavern ends up being a speakeasy in the basement of the rooming house where Ragnar lives, their liquor homemade and untaxed. Bertha had extra rooms, so she asks for the Vala twins to help carry everyone upstairs, including a few trips with other residents who have passed out, and gets them settled for the night.
They meet back downstairs for breakfast the next day to help get themselves oriented and find out a bit more about the city. It turns out that the mountain is surrounded by light Fae territory, who embargo trade with the Dark Dwarves, so seeing an outside face is unusual. For that reason, they also don't accept outside coin, so all outside trade is done in goods and materials. This concerns Dimnys quite a bit, but Cain assures her he's brought a lot of Gems and such along that nobody needed so far in their crafting.