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 William Morrow Paperbacks. Christie’s Tommy and Tuppence Beresford are Partners in Crime—or rather partners in crime solving—and must demonstrate their deductive skills in a wide range of  confounding cases after agreeing to take over Blunt’s International Detective Agency.