Borg establish that all on the list were together in a prisoner-of-war camp camp in Burma, where a Canadian sergeant betrayed his fellow prisoners, foiling their escape attempt. It stands to reason that the Canadian is the murderer, and killed each of the names on the list to prevent them from identifying him. They deduce that he is about to come into prominence and cannot risk being recognized. Almost by accident, Messenger’s final clue falls into place; it is revealed that the Canadian stands in line to an inheritance of the Bruttenholms, (pronounced "Brooms") Jocelyn’s family of landed gentry, who avidly engage in fox hunting. Having disposed of all possible witnesses to his wartime treachery, the Canadian, George Brougham (pronounced 'Broom'), appears at a Bruttenholm estate fox hunt and introduces himself as a member of the family (he has previously been seen only in disguise). It then becomes clear to the visiting Gethryn and Le Borg that Brougham's next victim is to be the young heir, Derek, who comes before Brougham in inheritance. In an attempt to divert Brougham, Gethryn informs him of his investigation of Messenger’s list, calculating to set himself up as the next victim. That night, Brougham sabotages the next morning’s hunt by laying a drag with a fox in a sack over the fields. He especially marks a blind spot behind a high wall, and moves a large hay tedder behind, intending for Gethryn (who has been given the honor of leading the hunt) to be impaled upon its lethal tines. Unbeknownst to Brougham, his plan goes awry when a farmer repositions the tedder early the next morning. The hunt begins, but comes to a halt at the specified spot. Gethryn reveals to the gathered crowd that he discovered and removed the hay-tedder booby trap earlier that morning and, with the help of the lead fox hound, will detect the scent of the culprit amongst a group of hunt saboteurs. Brougham, once again disguised, is identified and runs off, mounting Derek's horse. When Derek shouts a command to the horse, the animal stops short, throwing Brougham and impaling him on the very same machine he intended for Gethryn. Cast George C. Scott as Anthony Gethryn John Merivale as Adrian Messenger Jacques Roux as Raoul Le Borg Clive Brook as Marquis of Gleneyre Dana Wynter as Lady Jocelyn Bruttenholm Tony Huston as Derek Bruttenholm (credited as Walter