When this book was written in the early 1950s, I was still quite impressed by the evidence for what is… — Arthur C. Clarke

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 programmes, I am an almost total skeptic. I have seen far too many claims dissolve into thin air, far too many demonstrations exposed as fakes.

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