Superstition and Science have always been at odds, but this time Sherlock Holmes is challenged to disprove a case that was solved years ago by 'supernatural means'. If he wins, the Yard wins a blow against a damaging element of thought within their ranks. If he loses, everyone suffers, for a powerful administrator believes a little too much in matters beyond the veil... He is presented the facts as they were written before the audience, but he may ask only one question before he makes his decision and solves the case with logic alone...