Has anyone found out the deal with the mystery room, off the fire traps? And what about that friggin' chest down by the old dragon?
Indeed, the "mystery" room is totally empty, it does exist because it was part of the original design for the dungeon, but we blocked it off because there was no need for it anymore. The reason it appears on the map is because maps are directly based on the 3d model of the dungeons, so if it's there, it's on the map.
About the chest in the dragon's room, it's purely decoration, no way to get to it.
