This author of "The Duplicity of Hargraves" wrote a story in which Jimmy Valentine saves the life of a child using his safecracking skills, "A Retrieved Reformation."
In one story by this author, Major Talbot accepts money from a man who turns out to be the title character in disguise. Jeff Peters steals an ivory carving from the art collector Scudder and sells it back to him in this author's story "Conscience in Art." This author of "The Duplicity of Hargraves" wrote a story in which Jimmy Valentine saves the life of a child using his safecracking skills, "A Retrieved Reformation." In another of his stories, Bill and Sam kidnap Ebenezer Dorset's son, who turns out to be a royal pain. He also wrote a story in which Della ironically sells her hair to buy a fob chain for Jim, who has sold his watch to buy hair accessories for Della. For 10 points, name this author of "The Ransom of Red Chief" and "The Gift of the Magi," known for his twist endings.
In one story by this author, Major Talbot accepts money from a man who turns out to be the title character in disguise.
O. Henry [or William Sydney Porter]