Detective stories in which the great Thomas Carnacki investigates the supernatural using scientific tools, such as photography, and tools that are augmented by theories of the supernatural, such as the electric pentacle, which uses vacuum tubes to repel supernatural forces.
![50 Horror masterpieces you have to read before you die [newly updated] (Golden Deer Classics), Charles Dickens, Washington Irving, Thomas Hardy, John Buchan, Elizabeth Gaskell, Charlotte Perkins Gilman, William Hope Hodgson, Arthur Machen, Bram Stoker, Edgar Allan Poe, Golden Deer Classics, H. P lovecraft, Jason Conrad](https://assets1.bmstatic.com/assets/books-covers/18/4c/ipad-dfe6a5de2b77a90f4cae92f30adfb7fc.jpg?height=352)
