Never tell all you know—not even to the person you know best.

Agatha Christie in The Secret Adversary

About Agatha Christie

Portrait of Agatha Christie

Dame Agatha Mary Clarissa Christie, Lady Mallowan, (née Miller; 15 September 1890 – 12 January 1976) was an English writer known for her 66 detective novels and 14 short story collections, particularly those revolving around fictional detectives Hercule Poirot and Miss Marple. She also wrote the world's longest-running play, the...

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