The Queen of Mystery has come to Harper Collins! Agatha Christie, the acknowledged mistress of suspense&;creator of indomitable sleuth Miss Marple, meticulous Belgian detective Hercule Poirot, and so many other unforgettable characters&;brings her entire oeuvre of ingenious whodunits, locked room mysteries, and perplexing puzzles to Harper Paperbacks&;including Murder on the Orient Express, the most famous Hercule Poirot mystery, which has the brilliant detective hunting for a killer aboard one of the world&;s most luxurious passenger trains.