I really do think the White Witch quest needs some adjustments. Just an extra hint or two should suffice. A LOT of people have been having issues with this part of the game, and it almost killed it for me to be honest. I was very frustrated that (I thought) my characters were under leveled for the area. I finally was able to piece together what I needed to do, and went on to Hiberheim.

It's a serious issue, and while I understand not everyone has had problem, I have seen this crop up on this forum, and others enough to realize that it should really be addressed.

I personally think an extra hint or two about the Barrier removal scroll, and something when your characters reach the portal, would suffice.