Kate Summerscale has written one of the Sunday Time books of the year exploring the world of poltergeists and ghosts in the build up to the Second World War. She came on the podcast to tell us all about Nandor Fodor – a Jewish-Hungarian refugee and chief ghost hunter for the International Institute for Psychical research in London. From New York to Croydon he used all the gadgets of modern technology to record, X-ray, tape and photograph ghosts.