I really enjoyed this Poirot story as the action kicked off straight away - our favourite detective is summoned to France but by the time he gets there the person who wrote him the letter has been murdered, and thus the investigation begins! There are many, many twists and turns in this story, not just because there are the usual cast of characters who full under the finger of suspicion by turn, but also in revelations. Just when you think it’s sorted, something else happens and the whole thing is turned on its head.