From the front page of the PDF:
A Two-Round D&D LIVING GREYHAWK®
Iuz’s Border States Metaregional Adventure
The Armies of the Old One march on the gates of the Black Aerie as Iuz prepares for his final confrontation with the Demon Prince Pazrael to claim control of Torremor. Can he be stopped or will heroes step forward to turn back the tide? The Final Link of the Confluence Chain for APL’s 10-18.