A One-Round Living Greyhawk Perrenland Regional Adventure
From the introduction:
The Church of Zilchus has gained the mining rights to an abandoned goldmine near the town of Schwunglestad. Convinced that the mine still holds riches, they have hired Trennan Burken-Vosser, a geologist to investigate its potential. But going into a deep, dark hole can be dangerous. What he really needs is a group of brave adventures to act as bodyguards.
Suitable for player characters Levels 1-12.