Asking about latest rumors in Haimtír will get the following response:
Talking to Farkon to start a quest to investigate this strange group:Not long ago, a group of weird people came through here. An utterly unpleasant lot, clad in rags and stinking like corpses. After we found them scavenging through the ruins, Farkon and his men chased them away. He might know more, if you ask him.
player choice -> continueYes, we chased those wretches until they were off the mesa. You should've seen them run! Dirty thieves. There was something off about them, I tell ya.
player choice -> continueSaw them crawling through the ruins, like beasts. Sent a shiver down my spine, when I saw one of them gnawing on a human bone! When we returned, we discovered they had snatched a bunch of valuables from around town.
player choice -> yesYou seem like a competent fellow. If you find these bastards, would you please make an end of them, and bring back the stolen goods? I'll make sure you get a fine reward.
player choice -> noVery good! We last saw the scum running to the western end of the mesa. Probably gone to hide in a cave. You can start there.
The weird people is a travelling cult of Namira worshipers, the Cult of the Smiling Ghoul. They travel around in the wake of war and famine to prey on the fallen and the weak. After being chased from the Briag Cnoss mesa, they have hidden in a location near Mirilstern.Bah, you’re just as cowardly as the rest of the villagers. Be off with ya.
The player can kill them and bring back the belongings to Haimtir. Talking to the head of the Karthwasten Imperial Cult, reporting the cult activity and that the player has dealt with them, will give the player a disposition increase as well as one reputation point.
Alternately, the player could bargain with the cult, performing some foul task for them in exchange for the goods they stole from Haimtír.