A One-Round Living Greyhawk Verbobonc Regional Adventure
From the introduction:
Ancient magical energy slumbers in hidden points around the Viscounty, waiting to be awakened. Do you dare to brave a path none have tread for centuries? This is adventure two of five in the Skyroad Series, which should be played in order.
A one-round Verbobonc regional adventure for [player characters] levels 1 - 8.