Freiburg Not All Ghosts are of Dead People Have you ever heard footsteps on the stairs in a house in which you thought you were alone? It is a very unnerving experience. Whenever it has happened to me, I have been in a terraced or semi-detached house, so there was always the possibility that the sound came from next door. The New Jersey thriller writer Harlan Coben tells how at a get-together of writers of page-turners, the question arose: what is the scariest noise in the world? Is it a man being tortured? Is it a woman screaming? Is it a baby crying? Then someone said, ‘No. The scariest noise in the world is: you’re all alone in a cabin in the woods; you know you’re all alone; no one else is out in the woods; you’re downstairs alone, and from upstairs you hear the t...