I've given it a good think, and I believe the issue is either that I accidentally found the Tiefling's hideout without giving the code word to one of them, which might have bugged it-- or, and far more likely, it's because I told Mol something that upset her or I admitted to trying to grab the kid who stole from me (she actually says, "Please don't shake me again!").
I wonder if any of that an be worked around? Some people cast hold person on Mirkon to be able to talk to Mirkon, but I've already talked to Mol, so I think I'm passed that being the bug. I tried to throw them all to reset them, but it doesn't do anything beyond -20 attitude towards the throwing character.
