Surrogate Investigator: Creepy

The surrogate arrived in town as the church bells tolled the death of the minister. It was a bone-chilling thing, to see the man in dusty black riding into town on the back of a donkey. That was the first thought he had. The second thought was to wonder if the surrogate had waited outside town until the bells began to chime before riding in. That was chilling in another way, but it was a bit reassuring, too. There was the slight hope that the man wasn't a supernatural agent, at least in the strictest sense. Of course, he wanted the surrogate to succeed, to discover the guilty party that had been near to destroying the town when the minister died, and seemed to have taken only a short break since. But he didn't want a creature--

Inspiration: "Surrogate" - the secondary meaning, that of a deputy acting in place of a religious figure.
Story Potential: High.
Notes: Mystical and creepy and westerny, woo!