Atmosphere: Normal or none
Day: 7 days; Year: 243 years
Apostae is a rocky planetoid that is much smaller than most worlds in the Pact Worlds system, with an orbit that angles strongly from the ecliptic, almost perpendicular to that of Absalom Station. These telltale clues lead to general acceptance of the theory that the planetoid originated somewhere beyond the system and was caught in the sun’s orbit thousands of years before the Gap. Whether the world was guided to the system intentionally or arrived through some accident remains anyone’s guess.
No one knows exactly what happened to completely kill off the ilee, but since the end of the Gap, Apostae has been primarily in the hands of several powerful houses of drow—purple-skinned elves who reject their kindred on Castrovel and worship powerful demons. How and when the drow first came to the world is also a mystery lost to the Gap, but most believe that they fled there shortly before Golarion’s disappearance, guided by their demonic patrons in a twisted parody of the elves’ own escape. Today, despite centuries of effort to expand their holdings and increase their meager population, the drow still maintain only incomplete control of the planet-ship’s interior, and their influence on the barren surface is mostly restricted to a single major city near one of the massive doors leading down into the rock. Even this much, however—when combined with their significant economic power—has been sufficient for them to claim Apostae as their home world and become signatories to the Pact, over the loud objections of Castrovel’s elves.
Much like the bone sages of Eox, the drow houses don’t work together as a cohesive government and assemble only to elect ambassadors as required by the Pact. Each drow house acts independently, with most operating family-run corporations that deal primarily in arms, especially new technologies discovered or retroengineered from the alien items recovered by archaeo-salvage teams within Apostae. The orcs, half-orcs, and other races that live in the drow-controlled settlements are at best second-class citizens, with no say in political matters, mostly used as laborers or subterranean cannon fodder when teams break into previously sealed chambers in search of the fabled Armory or Chamber of Life.
The most powerful house on Apostae is House Zeizerer, which also has the broadest and most successful network for weapon sales. House Zeizerer controls Nightarch, the largest city on the planetoid’s surface and the only known point of entry to Apostae’s interior, as all of the other huge doors set into the planet’s surface are locked and have proven indestructible. As a major spaceport, the city hosts bustling markets dealing in personal and starship weaponry, mercenary squads of orc and half-orc warriors, fleshwarping augmentations, and custom weapons designs.
In addition to searching for alien technology within the planet’s vaults—either on official contract or by slipping past drow defenses—visitors often come to Nightarch to study the eponymous arch at the center of the city. This arch is similar to those that link many of the system’s worlds—and a functioning ring of such portals within the city provides access to most of the other Pact Worlds—yet this particular arch is covered in markings that have so far defied all efforts at analysis. When it activates, spontaneously and at rare and random intervals, it creates a gate to unknown landscapes. So far, no group that’s passed through these short-lived portals has ever returned.