A Two-Round Living Greyhawk Sheldomar Valley Meta-Regional Adventure
From the introduction:
The Gran March military did not heed the warnings, and evil from a lost temple of the Whispered One has already escaped. A varied menagerie of priests has assumed the responsibility to destroy the temple and the evil that is still within. A call has gone out to recruit a diverse group of adventurers willing to find the key to its destruction.
A Sheldomar Valley metaregional adventure for [character levels] 8 - 16.
Part 3 of the Whispers in the Swamp Series.