Late one evening the telephone rings, & on the line is a stranger. They tell you that your nine-year-old son gave them your number. Your heart stops. You tell them that your son has been dead for almost 20 years. They know this, they say. He wants you to come & see him. What do you do when reality begins to fray around you? Where do you go when science cannot explain your experiences? The Society for Psychical Research was founded in 1882 to tackle these very questions & to shine light on the shadowy world of the supernatural. Distinguished members have included prime ministers & Nobel Prize-winning scientists. But the most prolific of all the SPR’s paranormal investigators was a young British naval officer named Tony Cornell. A rationalist & a sceptic he became haunted by a wartime encounter in India that changed everything. Between 1950 & 2010 he became perhaps the world’s most prolific investigator of psychic phenomena.