Introduced in A Change in Tactics.

Dungeon Summary
Location 66.9N 15.9E
Restrictions 125+, Cannot be Tied/Recalled/Summoned, Quest flag (Give a Repaired Shadowstone to Ciandra in Xarabydun.
Related Quests Shadowfire Stone (Quest)
Map ACmaps - Empyrean Workshop
Route Take the Neydissa Castle portal in Holtburg and run south up the mountain to 66.9N 15.9E

General

To flag to enter this dungeon, give a Repaired Shadow Stone to Ciandra in Xarabydun. At the end is a book on the ground, you'll need to take the book to Bretself the Translator, then take to Ciandra, Arcanum Alchemist in Xarabydun. This flags you for the portal at the end of the dungeon to Atlan's Laboratory.

Creatures

Elemental

Golem

Mukkir

Shadow