From the front page of the PDF:
A One-Round Dungeons & Dragons® Living Greyhawk
Iuz’s Border States Metaregional Adventure
The Old One is looking into something and the Shade would like to know what. Why has an abandoned house near Admundfort attracted Iuz’s attention? This adventure is extremely roleplay intensive. A one-round Iuz’s Border States Metaregional adventure set in the Shield Lands for APLs 4-12.