A One-Round Living Greyhawk Gran March Regional Interactive
From the introduction:
For millennia, land in the Sheldomar Valley has been claimed by those with the strength to take it and to hold it. Invaders laying unlawful claims are not to be tolerated and allies should come together to retake lands wrongly seized. The time has come to reclaim Shiboleth.
A Gran March Regional battle-intensive interactive for [character levels] 2 - 14, and Part 5 of the Shattered Reflections series.
Note: This adventure will be of particular interest to members of the Knights of the Watch, the Gran March Army and Syrloch.