On Wednesday 30 October 2013, Andrew Pyper was in town to promote his latest book, The Demonologist. During the event, he read an excerpt and, astonishingly, he stopped at the exact same place where I had stopped reading only moments ago. Later on, he spoke about another coincidence: one night, his 5-year-old daughter had a nightmare about a boy dead in a river. This was the same night when the…