Horror Aficionados discussion

I am reading We Should Have Left Well Enough Alone by Ronald Malfi. If you've read it, can you help me with something? After the story Knocking, there is a blurb as part of the story and I do not understand how it is linked to the story. What are your interpretations?

Maybe put the question in the Q&A section of the book's web page?

https://www.goodreads.com/book/show/3...

Ok. Thank you. I did not know about that. 😋