Introduced in Dark Materials.

Dungeon Summary
Location From The Orphanage
Restrictions 90+, Cannot be Tied/Recalled/Summoned
Related Quests Aerbax's Prodigal Shadow
Map Orphanage Wing
Route Find a random portal to the Orphanage on Singularity Caul and give a Pulsating Bony Lump from the Artifex Collegium to the black statue of Bael'Zharon in the same room as the exit portal at the bottom.

Map

General

Using the BZ statue (instead of giving it a lump) will cause vita. The portal at the end of this dungeon flags you for entrance to the Prodigal Shadow Child's Lair. For two hours after passing through this portal you can use the statue at the drop of Singularity Caul to regain access to the Lair.

Creatures

Grievver

Margul

Shadow

Unknown