A One-Round Living Greyhawk Bandit Kingdoms Regional Adventure
From the introduction:
The Boneheart have declared that someone must pay for the recent attacks on their silver caravans. Martial law has been declared in the city of Riftcrag, in the heart of Iuz's controlled territory. With all of this, you are asked to delve into this wasp's nest to find a wanted man. This is the second in the "Legacy of the Highwayman" series.