Problem w/ first level of watcher's keep

[Cuake]

Hello everyone. Just registered, mainly to ask for advice w/ this problem of mine.
I entered watcher's keep. All went well and I had only minor problems w/ the statues after doing the whole "bell"-thing. Now the problem is that even though there's no statue left it says that "somehow the statues guarding the portal prevents you from entering." So I checked w/ Detect evil and first time it said that there was a statue within the level that had magic resistance but when I went around w/ keldorn using true sight, I found nothing and then when I tried detect evil again, it didn't mention no statue. Still I can't enter into the second level of watchers keep.

/Cuake

[Emilie]

I also thought i had killed the last, but one is invisible, and i belive that you just need to dispel it to kill her, but i am not 100% sure.

[Cuake]

thx, used comet on every inch of the level and at last found him. Strange though how he could be invisible even though I slept in there several times.