The girl in the photograph has been missing for five years. Neither her body nor the secret documents she was carrying have ever been found. Now, post-war England’s economic recovery depends on finding her and getting the papers back. But the two young Brits working undercover for the ministry know only that her name was Jane Finn, and the only photo of her is in the hands of her rich American cousin. They don’t know yet about a mysterious and ruthless man called “Mr. Brown,” or the beautiful but sinister older woman who knows all about Jane Finn…and therefore must die.

Agatha Christie (1890–1976), English crime writer, wrote sixty-six detective novels, six romances, fourteen plays, and four nonfiction books, all of which have sold more than four billion copies collectively. Her works, particularly featuring detectives Hercule Poirot or Miss Jane Marple, have given her the title the Queen of Crime, and Guinness World Records calls her the best-selling writer of books of all time.