A Two-Round Living Greyhawk Nyrond and Her Environs Meta-Regional Adventure
From the introduction:
The Celadon Forest has its share of ruins and mysterious places, but none as strange as the star-shaped castle ruins named Star Haunt. The doom that befell the original occupants is as unknown as the magic and treasures the castle ruins may hold. You have tracked the cause of the Blight to this location and you are certain that they are in the ruins somewhere. Celadon folk give this mysterious place a wide berth, but will you? The “shooting stars” that rain down around it from time to time are the least of the hazards here.
A two-round adventure for [character levels] 6 - 16; part six of the Blight series.