The Blackstone Chronicles is a serialized novel by American horror and suspense author John Saul. The series consists of six installments and takes place in a fictional New Hampshire town called Blackstone. The series has been adapted into both a computer game and graphic novel.
Blackstone was made up for the context of the story John wrote
Blackstone focuses on a fictional town made up by John for his story installments. I suppose it got confused on if Blackstone was made up or the city. But, in the context of the story, the contents are made up so Blackstone is fictional work not non-fiction