A Matter of Millions is a mystery novel written by Anna Katharine Green and published in 1891. The story follows the wealthy banker, Mr. Gillespie, who is found dead in his study. The police suspect that his son, Harry, is the culprit, as he had a motive for killing his father, who had refused to give him more money. However, Harry insists on his innocence and hires the famous detective, Ebenezer Gryce, to clear his name.As Gryce investigates the...