The "Resurrected" Village

From the introduction: About fifteen years before the PCs come to the village of [random name] an initiate of [evil/death being] comes by and starts preaching about eternal life for the villagers. After “resurrecting” the miller’s son the initiate gained a few dedicated followers. The years went by and the initiate’s herd of followers kept growing. Recently the initiate built the village’s church with the help of the villagers for it to be a place to sacrifice to his master. One by one the villagers get sacrificed to [Evil/death being] and with every sacrifice the initiate gets more and more crazy. When the PCs arrive the initiate have sacrificed everyone except two in the village. If the initiate succeeds in sacrificing everyone the [evil/death being] will take over the initiates’ body.