"The Five Orange Pips" is a Sherlock Holmes story by Sir Arthur Conan Doyle that delves into the sinister world of the Ku Klux Klan. Holmes is approached by John Openshaw, who has received threatening letters accompanied by five orange pips. Despite Holmes' efforts to protect Openshaw, he is found dead. Holmes uncovers the connection between the letters and Openshaw's uncle's involvement with the Klan, ultimately leading to the perpetrators' demise. The story highlights Holmes' relentless pursuit of justice.