A One-Round Living Greyhawk Yeomanry Regional Adventure
From the introduction:
In the wake of the Landstraad, the great earthquake that has the Yeomanry in shambles, the giants of the Jotens and their humanoid armies are taking advantage of the chaos to march on the Yeomanry's capital city of Loftwick! The Yeoman Army sallies forth to meet them, but a ragged dwarf stumbles into town, warning of a more insidious threat.
An Aftershock adventure for characters level 1 - 8.