When I finished the last lever (NW), the door to the treasure room does open. I didn't realize you have to run like heck to it and pray the golem doesn't get any licks in. I could have sworn someone said if you do tbe levers in the right order you don't get attacked and the door opens safely.
Now I'm where the Death Knights are, and despite sneaking, they still see me and kill my main character in like 2 or 3 hits.
Oh well, back to Sacred. Thanks for the help, and I might go back to BD later, but for now this game seems too contrived and arbitrary. i.e., not much fun.
Thanks again.