I liked the opener, as mentioned above. And I also liked the use of a Red Rooster as a demonic animal (because chickens are evil, evil, evil little spawn and don't let anyone tell you otherwise.) The last thing I enjoyed was the idea of a deadly diamondback as the instrument of holy salvation.
Otherwise, I was a little underwhelmed. This story was predictable in a not-quite-so-good-as-Small-Door way. I could have done with a little less exposition from the Black Dog. Okay, a lot less exposition. "Just show us the story and stop telling us stuff," I said. I mean, the girl says her soul was already taken and lifts her clothes to show scars, and the Dog has to announce that she's been abused? Really? We couldn't be trusted to come to that conclusion alone, Mister Dog?
I mean, don't get me wrong, it was still enjoyable. Just nowhere near the top of my personal list for PodCastle.