A One-Round Living Greyhawk Keoland Regional Adventure
From the introduction:
You have heard the rumors and seen the signs, the Army of the Returned moves closer to the capital of the kingdom. Heroes from around the land have been called upon to help with Niole Dra’s defense, and you are among them. But Lashton has other plans for you. Can you do his bidding and still stand with your king to defend the gem of the Sheldomar.