Shadowed Labrynith

A dark, twisiting puzzle-filled labrynith that composes the second level of Carceri, home to the souls of the Usurpers (See: Seven Deadly Sins of Faerun. The labrynith is divided into four quadrants, centered around a dark central chamber with a locked room in the center. The locked room theoretically contains the stairs down. The room can only be unlocked by assembling information from the four masters of the quadrants. This setup is repeated ad infinitum to contain all those who sought to usurp the gods.