On the lowest level of the Cellar an ancient portal can be found, leading into the mythical Arcane Sanctuary. The portal is guarded by a Super Unique Monster, Fire Eye. Though the gateway usually remains dormant, recently the portal was opened by a crazed sorcerer. This allowed hordes of demons previously imprisoned inside the Sanctuary to spill into the Palace and slaughter the Harem girls in the Harem above the cellars. There's a waypoint hidden on the first level of the cellers.