An underground cavern that has been maintained from the days of the Imperator. It has entrances from every region, though no one knows why this is so. This location has one area. It is non-missable. Connects to The Seventh Path through [[The Final Fortress#Sixth <-> Seventh|The Final Fortress]]. Available after the events at Koenigsdorf if the First, Second, Fourth, and Fifth Paths have been unlocked, or once you have spoken to Oswald.