From the front page of the PDF:
A One-Round Dungeons & Dragons® LIVING GREYHAWK
Iuz’s Border States Metaregional Adventure
An evil is revealed in the recently liberated city of Admundfort, one that could send it’s tendrils out across Oerth. An old friend, Gildor Arcanix, asks assistance against the vile foe. Never before has the enemy been so determined to see good and honest folk fail. Can heroes overcome this Acid Test? An Iuz Metaregional Adventure for APLs 8 to 14.