Novelist Andrew Martin has long been interested in ghosts and their stories, and he gives them much thought over five essays.

1. In his first essay, he asks if he actually believes in ghosts. Well, he certainly relishes the 'fear' and 'beauty' that comes from ghostly narratives. 'Have you ever seen a ghost?' is the first question he must address, and of course there is no clear cut answer to this...

Producer Duncan Minshull.