A fortress carved into a high mountain saddle, built in a style that predates the Sylthik city-states by centuries. No one knows who constructed it or why they chose such an inaccessible location. The structure is largely intact but abandoned—reaching it requires days of climbing through treacherous terrain, and whatever value it once held apparently wasn't worth the effort of maintaining supply lines.
Scholars have noted that Skyreach sits almost exactly where multiple mountain passes converge, suggesting it once controlled movement through the Aktarvkus. Some speculate it was a toll fortress from an earlier civilization; others think it served as a watchtower or signal station. The Sylthik occasionally use it as a neutral meeting ground for inter-city negotiations, precisely because no single city-state can easily garrison it.