A One-Round Living Greyhawk Gran March Regional Adventure
From the introduction:
With Gran March preparing for battle with bullywogs and their allies, all intelligence on their sacred and military sites is important information to gather. One such place of interest has been recently discovered in the Rushmoors.
A dangerous Gran March Regional adventure for [character levels] 2 - 12.
Part two of the Homefront series.
Note: This adventure will be of particular interest to military and veteran characters. Halfling and Gnome Meta-Org characters may also benefit. Many centaur characters will have difficulties with this game.