A One-Round Living Greyhawk Meta-Regional Adventure set in The Rakers
From the introduction:
With primeval darkness gaining power, a set of ancient heretical tomes, long since forgotten, may bring salvation. One set is believed to exist somewhere in The Rakers. It is up to the heroes of the area to find them, retrieve them, and make sure they are not used for evil ends.
A one-round Nyrond and Her Environs Meta-regional adventure set in The Rakers for characters level 2 - 14.