Larian Studios Forums Beyond Divinity (English) Help/Tips/Tricks Stuck

Am in the far right portion of Samuels dungeon looking at a door
that I cant open, have tried everything I can think of to open this
door. Behind the door is what looks like a portal with flames around
it. How do I open this door? <img src="/ubbthreads/images/graemlins/ROFL.gif" alt="" />

http://beyond.divinedivinity.net/help/act1_samuels_chamber.htm

this is the complete dungeon - Hellfighter made this map. If you see more, you probalby see another dungeon. It's like in Divinity: Maps are on 2 levels.