"It is believed locally that her death was accidental, but I'm afraid--" Our story begins with psychic investigator Cosmo Thor meeting Madame Luna, a fortune teller down on her luck. Madame Luna shortly tries to make desperate contact with Thor, but without success. Concerned, Thor consults his friend, Hugh Collier of Scotland Yard, and learns that Madame Luna may be a woman found dead from a fall from a cliff in Devon. But what in the world...