Chiaroscuro: Chronicles of the High Kingdom
An ancient line of defense that runs across the entire island of Eiren, the Highland Wall is part cliff face, part wall. Fortifications from different eras are scattered across the wall, most of them unoccupied, but some manned by soldiers of the High Kingdom or imperial legions, including the 13th Legion.
While the threat that prompted the original builders to shape the wall is unknown, the wall has served as a line of defense from invasion by giant clans, orc tribes and dwarven kingdoms across the centuries. The last major incursion across the wall was before the Long Crossing, leading some to believe that the threat from the highlands is long past.