When Agatha Christie (1890-1976) was a child she had a recurring nightmare in
which pleasant occasions %26ndash; family tea-times, parties, picnics %26ndash; were
disrupted by a scary apparition with no hands, a ghastly stare and
formidable powers of disguise. %26ldquo;It might be Mummy or Daddy or Nannie,%26rdquo; she
recalled, %26ldquo;someone you were just talking to. You looked up into [...]