Underground City

The Underground City is exactly what it's name says.. a city underground. It is actually a dungeon, accessed via the Abandoned Mine or the Isle of Tears.
As implicated by some sayings of the NPCs, it was a hiding place for humankind during the Olthoi Reign.
It contains a few shopkeepers, and gives access to the dungeon Hidden Dungeon. Two of the Strange Devices for the Black Death Catacombs Quiddity Seed Quest are also found here.

There is an Exploration Marker outside near the dungeon portal at 21.4N, 54.0E.

Map

Map (from ACMaps.com)

Portals

To Underground City

Location	Coords	Destination	Coords	Restrictions
Abandoned Mine	34.9N 54.6E	Underground City	21.3N, 53.9E	None
Isle of Tears	21.3N, 53.9E	Underground City	21.3N, 53.9E	None

From Underground City

Location	Coords	Destination	Coords	Restrictions
Underground City	21.3N, 53.9E	Isle of Tears	--	None

Points of Interest

Strange Device Thorsten Cragstone's Tomb Beautiful Key

Lifestones

None

Dungeons

Dungeon	Coordinates	Wiki Map	ACmaps
Hidden Dungeon	??	--	536A

NPCs

NPC Name	Location	Type	Details
Archmage Mah bint Dirid	In the second room directly right near exit portal	Shopkeeper	Magic Supplies
Arina of the Arms	In a room directly left from drop	Shopkeeper	Armor
Gailadu the Scribe	hang right through 2 rooms	Shopkeeper	Books, Paper
Grethoric of all Trades	In a room directly right near exit portal	Shopkeeper	Basic Supplies
Henrid the Grocer	In a room directly right near exit portal	Shopkeeper	Food, Cooking Items
Healer Lithinia of Chiran	Go up 2 stairs from Arina and left in second room	Shopkeeper	Potions, Healing Kits
Shunju Shinjin the Weaponsmith	Go up 2 stairs from Arina and left in first room	Shopkeeper	Weapons