This book was like taking a knotted necklace chain or ball of yarn and carefully picking it apart to find that it's actually so many strands disguised as one.  I LOVE how Poirot chips away at a mystery and knows when something is significant or not.  The way he carefully teased the clues apart was so much fun to watch. And the characters in this one were superb.  I was shocked SO many times and loved the ending!

Note: I loved the audiobook!