This is the finest Hercule poirot book I have ever read . And the climax justify the greatness of Poirot's brilliancy. Great storyline . Keep you puzzled about who the actual killer was . Though there were multiple unnecessary information which makes you bit confuse but Like Poirot said with thought every problem can be solved as each information were connected to each other. Also there was quite more depth about his exceptional detective skills which made him so special . The illustration of the characters by Mr. Satterthwaite and act of Sir Charles Cartwright was top notch..One downside that Poirot was hardly any importance in half of the book which makes the story quite boring though . But .Overall a good book to read .