A One-Round Living Greyhawk Shield Lands Regional Adventure
From the introduction:
While the Council of Lords makes a decision that will change the Shield Lands forever, the PCs are given a simple duty to keep them out of the way. What could be easier than training the farmfolk and craftspeople of Southkeep to use their spears? Yet something neither living nor dead, but somewhere between, lurks in the darkness beneath the soil, and it does not rest easy. In this case, shadow may provide illumination.
An adventure for characters levels 1-13.