Well, if we think about it, 'Blackwood Evil' might be a story that has been passed down through generations in a community near Blackwood. It could involve something like an ancient curse that was placed on the area. For example, there could have been a conflict long ago between two groups in Blackwood, and one group put a curse on the other, which led to all sorts of misfortunes. These misfortunes then became part of the 'Blackwood Evil' true story. It could also be related to natural phenomena that were misinterpreted as 'evil' in the past, such as strange weather patterns or geological formations that people didn't understand.
Since I don't know the exact 'Blackwood Evil' true story, it might be a story that involves a family in Blackwood. Maybe there was a family with a dark secret. They could have been involved in witchcraft or some other form of the occult. Their actions might have had consequences that affected the whole area, and that's how the story of 'Blackwood Evil' came to be. But again, this is just speculation without more information.
Well, it could be. Some ghost town stories are based on real places that have been deserted. Blackwood Falls might have been a real town in the past that faced hardships such as a mine closing down or a major epidemic that wiped out a large part of the population. As the town emptied, stories of strange happenings might have started, leading to it being known as a ghost town. However, it could also be a fictional name made up for a spooky story.
He uses detailed descriptions of the settings. For example, in many stories, the isolated and often gloomy locations like old mansions or deep forests add to the suspense. The reader immediately feels a sense of unease.