Although this is not my favourite Poirot novel, it is certainly one of the better later ones. Written in 1959, it is almost as good as her earlier works and it certainly has a fun setting and a good cast of characters. Part thriller and part mystery, it concerns a revolution in a rich Middle Eastern country called Ramat. His Highness Prince Ali Yusuf entrusts some jewels to his friend Bob Rawlinson, who hides them in the luggage of his sister and niece, without their knowledge.
The action then moves on to the exclusive Meadowbank School, where his niece is a pupil, along with a cousin of Prince Ali, the Princess Shaista. With the whereabouts of the jewels unknown, more than one interested party is looking for them. Then the PT mistress is murdered in the new sports pavillion. Apparently, Christie used her own daughter's school as her model, but the enclosed environment works very well. There are a whole host of suspects, secrets and mysterious happenings, until one of the schoolgirls involves Poirot to solve the crimes. An unusual setting and an exciting plot make this a fun read.