When this book was written in the early 1950s, I was still quite impressed by the evidence for what is generally called the paranormal and used it as a main theme of the story. Four decades later, after spending some millions of dollars of Yorkshire Television’s money researching my Mysterious World and Strange Powers programs, I became an almost total skeptic. I had seen far too many claims dissolve into thin air, far too many demonstrations exposed as fakes. It had been a long, and sometimes embarrassing, learning process.
