A One-Round Living Greyhawk Principality of Ulek Regional Adventure
From the introduction:
The Azure Sea has become increasingly more dangerous to travel these past months. Many of the vessels departing from the port city of Gryrax never return and trade from the cities along the Sea of Gearnat has dwindled dramatically. Are these disappearances caused by some new, strange evil lurking beneath the waters of the Azure Sea or the normal hazards of sea travel?
A Principality of Ulek regional adventure for APLs 2-10.