The Pinnacle of Avarice is a high Thassilonian citadel laid out across multiple lavish chambers of marble, gold and arcane geometry. Formal halls connect to private sanctums, an observatory and a vast throne room, giving the complex the functions of both palace and magical stronghold. Scarlet paths and gilded details provide visual continuity as the rooms shift in scale and purpose.

The multi-part map set supports a full endgame dungeon. A GM can move characters from exposed ceremonial spaces into tighter studies and controlled passages, then back into enormous chambers built for set-piece encounters. Stairs and connections allow defenders to retreat through the citadel while players decide whether to explore side areas or press toward the central objective. In Rise of the Runelords: Spires of Xin-Shalast, the Pinnacle is the final expression of ancient greed and power; outside the Adventure Path, it can serve as a complete archmage palace, floating citadel or decadent arcane fortress.