From the front page of the PDF:
A One-Round D&D LIVING GREYHAWK®
Iuz’s Border States Meta-regional Adventure
A grieving sister needs your help in locating her brother. However, things are not always what they seem...especially when on the trail of a missing master of illusions. Remember when lifting a log one sometimes uncovers more than is expected. An adventure for APLs 10-16 and the Third Link of the Confluence Chain.