The Northern Wall is the main part of the large wall that runs round Summerwind. It borders the Eastern Desert and runs all the way to the east and west where the Wall borders Oceanna and the Great Sea respectively.
The Wall has manned castles with packed armories and equipped units of Kingsguard and Royal Guard along it. The Northern Wall is the kingdom's primary defense from invaders from the desert and Dwarf Mountains as well as the main entrance and exit to and from Summerwind.
Summerwind's Wall is 500m high and is decorated with intricate patterns that cover its entirety.
Sir Eridi Deryk can be found here.