Long ago in the Age of Divinity, the unremarkable city of Tigan is met with tragedy as a massive sinkhole spontaneously opened up, swallowing people and property alike. In the aftermath of this disaster, survivors find a network of ancient ruins believed to be from before the dawn of civilization and thus the dawn of all creation.

Such a heretical revelation cannot simply remain unexplored, and the faithful of DIV and VOID flock to Tigan, sparking further tensions between these warring factions. In the midst of this situation, four adventurers take it upon themselves to venture within, unprepared for whatever truths or dangers might await inside.