In Five Little Pigs, Poirot is asked to go back and investigate a murder that happened 16 years prior. He is asked to try to prove innocent the person convicted and imprisoned for the murder. 

I really liked the structure of this one where Poirot tries to prove a party innocent in a cold case. The unraveling of the story was excellent! I didn’t guess correctly; but trying to figure it out was fun. 🙂 I thought Christie did such a good job of positioning the guilty party as one you might suspect but also didn’t suspect at the same time. 

There were also elements of the story that reminded me of an old classic movie called The Thin Man. 
Overall, a well done mystery by Christie once again.