Perched atop a mountain spire amidst swirling storm clouds, an ancient dwarven citadel carved from the living rock hosts glittering crystalline spires and gargoyle-lined ramparts. Inside the arched gates, the fortress city cascades down multiple terraced levels amid glowing forges and lava flows channeled for power. On the highest precipice, a celestial observatory opens its stained glass domes to the cosmos.