Kilyarnham Prison is a shared detention facility used by the Djozanates of the Kenai Mountains for prisoners considered too dangerous for ordinary local custody. It lies in the foothills east of Kai Song Peak, within the territory overseen by the Leopard Song Order, but serves the Djozanates more broadly rather than functioning solely as a Leopard Song prison.
The facility is carved into a granite mountain. Its principal approach follows a path beside an underground river, placing the prison in terrain that naturally limits ordinary access and makes it suitable for holding prisoners whose confinement requires unusual caution.
During the period of the Grand Army of the Djozanates around 8752 SE, Dhuulan Havar and his allies in the Drow revolutionary organization Venorik Killianen used Kilyarnham as a secluded meeting place away from the ordinary communities of the mountains. That use reflected the extraordinary political conditions of the Grand Army rather than the prison’s usual purpose.