The Forbidden City

Unbreachable
The Forbidden City has existed for as long as recorded history. Although it is called just a city, the ruins inside and the shield around it span the size of a small nation.

It is surrounded by a shield that appears to use ley as its base. No magician nor weapon has ever managed to breach the way inside.

Though the shield, dark figures can be spotted either right up next to the edge of the shield all the way to as far as one can see through it. They are very dark and have never been identified. They have been dubbed, by those stupid enough to traverse the distance to The Forbidden City, as "Dark Denizens".