Ok, I just killed the headless giant and the banshee flying around in the room. I've also looted the secret room and done all that the walkthrough requires in here. I seem to be stuck though. The only obvious way out is the way I came in, but the portcullis/door I came in through is shut. Ive run all over the room looking for secret doors, etc, and I have a search skill of "4".
BTW, I've also picked up the secret treasure map.
Is it the main entrance to the mansion that you're having trouble with, or is it a door inside the mansion? Unfortunately, it is possible to lock yourself into rooms, with no way out, so you might need to go back to an earlier save.
SWC
Sir Edmund:"Should you obey the lord who asks you to put a village of innocents to the torch? Is that chivalrous? Is it noble?" Me:"It's a great way to get promoted, I know that much."