"You do see, don't you, that she's got to be killed?"
Mrs. Boynton is despised by everyone who meets her. Even her family. All of her children live under her thumb and it is easy to see how her manipulative tyranny make Mrs. Boynton one of the most despicable characters(show spoiler)
in any Christie novel.
Poirot, having once overheard a conversation between two of the Boyton children, is resolved to investigate when a death occurs on a trip to Petra.
I really enjoyed this mystery. Christie focuses once again on the relationships between the characters and uses psychology to map out what makes those relationship keep intact. There is something compelling about the vile Mrs Boynton as none of the people around her find the strength to tear away from her even though this would ultimately be for their own good. At the same time, Mrs Boyton's sadistic behaviour provides a number of lies and deceptions that make it fun to follow Poirot's investigations and keep guessing the resolution to this mystery.