The Black Goat supposedly resides within a hole deep down into the abandoned mines near Possum Springs. It is mentioned by the cloaked figures in the cult, who appear to worship it, that it does not speak but instead sings. The cloaked figures explain to Mae and the gang that Mae was one of the few to hear the Black Goat sing. The Black Goat is also believed to have given Mae her Astral Projection and had given Eide his ability to walk through walls.
As the band continues to confront members of the cult they explain that in order to keep the Black Goat satisfied, they had to make sacrifices. Casey Hartley was one of those who was thrown into the hole and seemingly died.
- The Black Goat may have been a reference to the cosmic deity Shub-Niggurath from H.P. Lovecraft's horror fiction. Shub-Niggurath is also known as “The Black Goat of the Woods with a Thousand Young”.