What Can We Say About Springhill Jack From the Reason Perspective?

There have been a bunch of theories, including that he was a demon. He may have scared people, but lots of things scare people so that's not particularly demon like. A lot of the details we have indicate he was a flesh and blood creature. So i think we have something more than just a leged to investigate here. What about the other reports across the nineteenth century? They didn't end until 19 o four. I find this view hard to credence.