The Underdark is a vast, airless expanse of interconnected tunnels, colossal chambers, and twisting labyrinths spanning an entire continent. This lightless world remains frozen in a cold, windless stasis where magic hums through the stone. Dangerous creatures prowl the dark, and getting lost means certain death. Dominant powers rule through fear and dragon-forged pacts, while smaller enclaves cling to life in the damp silence of the subterranean wilds.