This book is the final Hercule Poirot novel that reunites Poirot and Hastings for the one last case. Novel also return the characters to the setting of their first case: The Mysterious Affair at Styles.
This is not the best of Agatha Christies Poirot books, but it has one of the most surprising and most shocking ending. Besides anything Agatha Christie has wrote is least really good.
Anyone who like classic detective novels.