Greg Thomas
Naturally there isn't one single idea or source for the book, but something did fire up the old imagination a while back: the theory that infrasound in certain locations could be an explanation for ghostly apparitions or feelings of unease.
More Answered Questions
About Goodreads Q&A
Ask and answer questions about books!
You can pose questions to the Goodreads community with Reader Q&A, or ask your favorite author a question with Ask the Author.
See Featured Authors Answering Questions
Learn more