Lead the Pilgrim to Koal Cave: Quest Advancement Bug
|Component:||Quests - Misc Quests|
Whenever you talk to Fonus, regardless of how much time has passed, it will advance the quest to the next index. As a result, if you talk to him several times within the same minute, he calls you a jerk and leaves!
When I started seeing the glitchiness about it, I quick-saved before talking to him again- after which he left, and I reloaded. It then advanced the quest to Index 90, saying we'd arrived at Koal Cave, even though I was all the way in Maar Gan.
As an added note, I noticed that he was essential- seeing as one of the possible entries mentions him coming to an "untimely end", I'd assume that he wasn't in Morrowind. Not sure if this is intentional or not.