A One-Round Living Greyhawk County of Urnst Regional Adventure
From the introduction:
The Community Of Hillguard has lost contact with a nearby lucrative adamantine mine. After a party of local Dwarves failed to return from investigating the problem, the Barrelhouse family has offered a bounty for anyone able to find out the fate of the miners and get the mine back in operation.
A one-round County Of Urnst Regional Living Greyhawk Adventure for [character levels] 6 - 16.