This is not an actual zone; it is where decommissioned mobs go in our database.
You will find here: pre-revamp bestiary from various zones such as the Plane of Mischief, the Hole, and Grobb, and also some stragglers from different places who've vanished for various reasons.
Email
eqteam@allakhazam.com if you spot an extinct mob in the current bestiary pages.