From the publishers blurb:
Trouble stirs in the Borderlands. Khazra, Red Prophet of the Bull God, has united the fractious People of the Bull and proclaimed the promised time is nigh. The Bull God demands blood! Fanatics raid the outlying villages, farmsteads and towns for sacrifices. None are safe!
Unbeknownst to Khazra, a power older then man stirs under the earth, fed by the blood of sacrifice. Can a band of unlikely heroes prevail where all before them have failed? Are they brave enough to face not just the minions of the Red Prophet, but the eldritch terror of the Obelisk that Thirsts? The land will suffer terrors lost to time -- unless heroes step up and answer the call! A module for 3-6 characters of levels 3-5.