I did not see that ending coming at all, Agatha Christie is indeed the queen of crime. I was guessing and second guessing who the murderer was the whole way through, and thought that I would never get to find out who the murderer was since the epilogue was in the police's POV after the bodies were discovered and they were just as stumped as the reader was. I can't wait to read more of Christie's works, one book in and she has proven what a fabulous writer she is with her plots alone.