The heroes woke up after a long night barricaded in the mine office to an eerie chill. After regrouping, they venture forth to discover that an unexplained frost has overcome everything in mine, freezing all the goblins and glazing every surface. The party follows the cold wind blowing from deep into the mine, leading them to great depths. After venturing far down in the earth, they party discovers that the mine eventually broke into long buried ruins form the past.
Exploring the oddities of this ancient edifice, the heroes finally come upon a goblin shaman communing with a demon. The party battles the goblins and demons, and learns that the demon is a servant of the demon prince Kal'uul who is hatching a fiendish plot into the material realm using these goblins as pawns to achieve his own nefarious ends.
