Jaasakah Dar is the fortress of the Jaasakah Ghaash'kala, and it is sprawled across the top of the eastern Labyrinth. The fortress is visible for miles around, and it draws fiends and other denizens of the Demon Wastes like moths drawn to a flame.
Jaasakah Dar rests on a long plateau, surrounded on both sides by sheer cliffs, such that the only entrances lie at each end of the plateau, where they are guarded by ranks of barricades, traps, craters and switchbacks. The fortress itself is built of dark rock, reinforced by the indestructible building material of the Couatl, songsilver. The position of the fortress leaves it vulnerable to aerial assaults, and so sentries man towers at each corner and keep an eye on the sky. The interior of the fortress is a nightmare for attackers. The outer layers consist of many layered chokepoints, and confusing branching corridors that are littered with traps. The Jaasakah are rarely content to engage in traditional siege warfare, however, and most assaults don't make it within the fortress at all.
Beyond the siege defenses, the interior of the fortress is a bustling city of workshops, communal kitchens and common areas where the warriors of the Jaasakah rest and enjoy each others company. Below the central hall, where the Jaasakah gather and share their meals together, lies the Binding Coils, an ancient artifact created by the Couatl. The Coils channel the power of the Risia manifest zone into the chamber, bringing the plane closer in that chamber than anywhere else. The result of this is that, within the chamber of the Binding Coils, nothing can die, any creature that would otherwise pass is instead locked into a magical stasis as if frozen in ice. The Jaasakah use this chamber as a hospital, where they can tend to the wounded without fear of losing them. The rest of the chamber is used to store food, which never rots.
The fortress rests within a manifest zone to Risia, which lowers the temperature dramatically (a boon in the unnatural heat of the Demon Wastes). More than this, though, the manifest zone also preserves living things within it. Usually fatal wounds barely even bleed, something which the Jaasakah take great advantage of. The warriors know that their wounds are unlikely to be fatal, and so they throw themselves fully into the fray.