From the introduction: The adventurers have been tracking a gem that crashed into the underworld inside a meteorite. The gem has finally been located in a palace that is part of the malevolent living dungeon of Eldwold Reborn that has patterned itself after the now-ruined city of Eldwold that used to exist on the surface. If players don’t know the Dragon Empire setting of 13TH AGE all that well, remind them that living dungeons don’t necessarily make sense the way normal places do; the magic that keeps them ‘alive’ means they can take bizarre forms and compress bizarre perils into amazingly small spaces. User summary: For 4th level characters.