Dark Fantasy.

A colossal, sand-covered structure resembling the skull of a titanic creature, its entrances obscured by crumbling sand and bone fragments. Inside lies a labyrinth of natural caves and artificial tunnels, serving as the crypt and gathering place for powerful Reapers and their leaders.

The exterior is a massive, weathered skull, partially buried in the desert sands, with intricate carvings and hieroglyphs barely visible beneath the layers of sand. The air is thick with the scent of ancient decay, and the sound of distant whispers echoes through the tunnels.