A book that departs a little from the usual ones of the Queen of Mistery, in various aspects, and for this reason it intrigued me a lot. Nevertheless this book, in the end, still contains the basic elements that I love so much and that I appreciate, if I have to be honest, for their familiarity, too. For example Poirot's deductive work, Hastings' mistakes, the arrogance of the policeman on duty, various clues cleverly disseminated. A really good reading to end pleasantly the year!