Thanks for the quick response.
I found Elminster in time at High Hedge. I think the problem is that I also have Stone of Avareska (I think that's the one) installed which puts archers in front of the Feldepost Inn. The archers are kinda hard for my lowlevel party so I went for Bassilus first to gain the needed xp for an extra level. That alone seemed to make the timer exceed already. But everything seems fine now!