A One-Round Living Greyhawk Gran March Regional Adventure
From the introduction:
The recent assassination attempt on the Commandant was indeed the last straw in Gran March. The Commandant has called on all available resources in order to find them. Yet, there is another (and less forgiving) group that wants to see the end to this band as well. Parties should be formed into lawful and non-lawful groups.
A Gran March regional adventure for [character levels] 4 - 18, and Part Four of Shadow, Sun, and Sword series.