Shorn Insolence

Damnable swamp-wretches... shavin' the beards of decent dwarfs and bringing shame upon their heads. That dwarf will likely take the slayer oath now, and for what? Our foes shave our beards to spite us. They know how much a dwarf's beards means to him. You say a boglar out in the Fedid Bog had the beard? Hmm... Sounds like the work of a nasty ogre butcher in those parts. Boglars themselves are too timid to face a dwarf. Someone bigger and meaner is leading them. Go to the Fetid Bog and search for a butcher's pot. One sure way to get a butcher to show up is to tamper with his cookin'. Spit in it.

Search the Fetid Bog for the butcher's pot and tamper with it. Morek Oldor gave you a rotten onion, toss it in the pot and then interact with it to ruin the stew.