Hey Simone, thanks for checking out KERGÜS! So the locations table replaces the one in the base game for your hex crawl.
Any time you roll up a black soil result, its essentially the dungeon in the expansion. So you start a dungeon using the room size, exits & events tables in BTBS, same as you would in the base game.
Awesome welcome aboard! Newsletter goes out every 4 weeks and sometimes in between if theres big announcements that cant wait.
But I post articles weekly on the substack that the newsletter comes from.
There's a handful of advance copies of Of Coal & Corpses available at the pit trap shop now. General release, physical & digital coming soon through overlandempire.co.uk, itch & dtrpg
https://pittrapshop.com/products/of-coal-corpses
Any other questions please do get in touch!