With guards stationed to ward off the corrupted and tainted on the rare occasions they did stumble upon the city, Tel'Adre has survived uncorrupted since then. Two decades ago, when the demons began to work their way through the settlements of Mareth, the Covenant realized that direct confrontation was doomed to fail, and used their powers to place the city under a veil of concealment. The city owes its freedom to the Covenant, a powerful group of magic-users who reside in the city. Tel'Adre is a hidden city, relatively free of and concealed from corruption, located in the desert.
