The adventure takes place within a netherworld, a tiny pocket realm within The Shadowfell. Wherever the maps have penetrable boundaries, the party will see only complete and total darkness. Light will not penetrate this darkness, and anything thrown in will simply disappear into the void. If a character makes the foolish mistake of attempting to enter this endless darkness, they will reappear in The Crypt, buried, in the same fashion as when they first arrived from the Dark Passage. (Of course, they likely won’t have coins on their eyes or be holding their breath at the time… or have the assistance of their friends…)