Antzeko izenburuak

• THE CASE OF THE TURNING
  nork: GARDNER, ERLE STANLEY
• THE GALTON CASE
  nork: MAC DONALD, ROSS
• CASE 39
• The Harlingham Case
  nork: Warden, Florence
• Solves the case of the
  nork: Mason, Perry
  Argitaratua: (1960)