Sorry to necro this thead, but I'm stuck on the iron door in waterless sewers. Am I looking for a button? Is it a torch puzzle? Do I need to run around the block?
I don't know what the puzzle is, I'm pretty good a puzzle solving, but puzzle finding I appear to be pretty bad at.
I have run around the entire place looking for a button. I have stood in place for at least 15 minutes staring at the door. I have unlit all torches. I Have tried to place items on invisible plates on the way to the ornate key nearby. I have tried to depress floor plates and run to the door. Nothing seems to work. Do I need to wait and return later to this level? Do I teleport to the location or drop to it?