Ok, I basically went everywhere in Skull Castle. I got the relic and everything. Except for one door that has some kind of lions head next to it. Keys don't work. It is looking for some kind of device to place on it. There is a Vampire behind the door. I think this is the Vampiress I have to kill for the quest from Brimloch?? I utterly destroyed the other Vampiress's in the underwater basement. I thought she was the head one. But she wasn't. Can anyone help me here?

Use the staff of death on the lock. Instant access. Prepare to face the head vampire. She isn't that tough though.

Serath
"We are all heroes, you and Boo and I. Hamsters and rangers everywhere, rejoice!"

Thanks!!