First appears in: The Stone Flame
The Martial District is the military quarter of the Remnant stronghold, Gulthurub, and serves as the location for Zel’s headquarters. The environment is described as a place where "the People were loud... clinking tools and speaking roughly to one another," while the "smell of burning meat rose up" into the air. Despite the city's overall industrial and decaying appearance, the district features a rare touch of vibrancy, with "colored flags [fluttering] in the evening breeze, clinging to the sides of buildings," which Zel noted as the "first bit of actual life he’d seen in this godforsaken place."