The campaign opens some fifty years after the arrival of human society on the earth. Five people set out from the human settlement of New Avalon, with no purpose in their mind but to adventure. Their names and stations:
- Isbrand van Thul, Tiefling Evoker
- Brim Stone, Ifrit Rogue
- Lucius Aldarae, Aasimar Bard
- Sakomoto Kuro, Catfolk Ranger
- Kizziar Sladeson, Half-orc Fighter
They depart to the eastern mountains, where, led by what may only be surmised to be divine providence, they stumble upon the long-sealed entrance to the dwarven city of Mzindekhalet, erstwhile capitol of the Underdark.