Sands of Alscyra
The Rhun Mountains
Bordering the desert to the far south is a colossal redrock mountain range, collectively referred to as the Rhun. Legend says it was a great mining expedition in the Rhun that created the monuments and cities (now ruins) of Alscyra.
In the current age, however, the Rhun is quiet and universally avoided by all sentient races. Deep in its core reside powerful aberrations from the Far Realm. Mothers in Skyswatch tell misbehaving children that they’ll be sent to the Rhun to serve some monster as mindslaves1.