A One-Round Living Greyhawk Adventure
From the introduction:
A rumor has filtered through Dyvers, possibly concerning the whereabouts of an artifact sacred to the temple of Zilchus. The church of Zilchus in Dyvers, the Holy Partners of the Golden Coin, would certainly be grateful for the return of an artifact of the faith. There is, however, the little matter of some competition from the rival city of Greyhawk.
An adventure for characters level 1 - 6.