Umgurn, Floki, and MikMek take to the water in a recently recovered rowboat to explore down the Thorn River! They find a wyvern's nest, some disused iron mines, some giant sundews, and stop to explore some ruins connected to local hobgoblins. In the Altar of Nomog-Geaya, they discover a large painting of hobgoblins causing mayhem and they get attacked by a ghoul. Umgurn gets paralyzed and decides maybe that's enough delving in that ruin, so they head to a nearby area with a lost dwarven outpost. After crossing the chasm and getting to the gatehouse, Umgurn waxes historical about Haela Brightaxe and they encounter a dwarven ghost who wants their help getting rid of his troll problem. The party promises to return in greater numbers and heads back to the river, where they meet some dwarven prospectors. They explore further downstream past Sootscale Caverns and portage around the Devil's Cauldron, then stop at the confluence of the Elk River and decide to follow that upstream. Some abnormally hot silver mines are discovered and a strange beast is encountered, who quickly bonds to Floki, but whether that's a blessing or a curse remains to be seen!