“Poirot, watching him, felt suddenly a doubt--an uncomfortable twinge. Was there, here, something that he had missed? Some richness of the spirit? Sadness crept over him. Yes, he should have become acquainted with the classics. Long ago. Now, alas, it was too late....”

British crime writer of the 20th century, Agatha Christie is best known for creating the iconic detective Hercule Poirot and the enigmatic Miss Marple. Her novels and plays, including *Murder on the Orient Express* and *The Mousetrap*, redefined the mystery genre with intricate plots and psychological depth.