The sages aver: another world lurks beneath our sunlit lands. A world ruled by elephantine monarchs in the service of chaos lords, where magic has replaced the spoken word, the weakest slave is like unto a superman, and ancient streets of gold and stone are lit by a smokey orb that hangs in the dusky firmament. How the sages know this, few can guess, for while many have sought the fabled vistas of Lost Agharta, none have returned. In the grand tradition of our adventures, Journey to the Center of Aereth is an epic expedition into the depths of Aereth's fantastic underworld. Deadly foes, alien ecosystems, and the perils of a world bereft of light await the heroes. In order to survive, parties will need to pit all their cunning, planning and courage against the forces of the Unknown.