Jo is suspicious of the Slags. Find out about the dead bodies at the Ghost Farm and find out what happened to Karl

Jo wants you to prove the Slags are not dangerous Vegeir, the leader of the Slags, will tell you that the bodies are fake (or just examine one of the bodies?), and that Karl ran off to the west. If you came across Karl already and listened to his story you will know he is in the Den, and can tell Jo that, saving yourself a trip (Jo gives you 31 days; just enough time to get to Den and back on foot). You won't be able to tell Karl to come back (next quest) until after the Modoc quest is resolved, so it really does save a trip. Save-reload/Evil activity: tell Jo to attack the Slags, and join an angry mob of villagers (with pitchforks and torches ala Frankenstein?) in attacking the Farm.