This is really strange - just for the records:
You followed the kids down the well, right? And a mutant approached you, right? You killed it and it has nothing? <img src="/ubbthreads/images/graemlins/confused.gif" alt="" /> - and did you approach Arnie behind the wall in the south area - does he talk to you?
Which patch version, please?
Another thing => is Arnie still behind the wall, or did he run out? If so.. the mine shaft entrance in the west area should be open - then descend and free the other kids (or not - makes no difference). As soon as you leave the cell and run back to your starting point in east => you get teleported back.
