Agatha Christie was one of the most beloved and prolific mystery writers of all time, known as the "Queen of Crime." Born in England in 1890, she created iconic detectives Hercule Poirot and Miss Marple, whose cases captivated readers for decades. Christie wrote over 60 detective novels, including "Hallowe'en Party" and "Ordeal by Innocence," featuring intricate plots and ingenious twists that have become hallmarks of the genre. Her works have sold billions of copies worldwide and been adapted numerous times for stage and screen. Christie passed away in 1976, leaving an unparalleled legacy in crime fiction.