The idea with the undead that are worked to a burnout made me chuckle. Otherwise, the adversaries are rather boring - all they want to do is killing other beings (mainly by burning them to cinders). The plot and adventure elements are standard (good sealed did this and evil guys try to break the seal), which makes it even difficult to salvage the adventure for other stuff. It seems the starting questions are meant to define some of the dungeon background, but that is already fully written - thus, the answers are most likely to become just another set of (wrong or pointless) rumours about the dungeon.