From seat No. 9, Hercule Poirot is almost ideally placed to observe his fellow air travelers on this short flight from Paris to London. Over to his right sits a pretty young woman, clearly infatuated with the man opposite. Ahead, in seat No. 13, is the Countess of Horbury, horribly addicted to cocaine and not doing too good a job of concealing it. Across the gangway in seat No. 8, a writer of detective fiction is being troubled by an aggressive wasp. Yes, Poirot is almost ideally placed to take