The choice of murder victim in this book is a little different than most Christie victims. The scene is an English village and the murder occurs at a Hallowe'en party for pre-teens. The murder victim was a 13 year old girl, who was known for talking too much, and for making up untrue stories. Aridane Oliver is at the party and when the young girl is found dead, she calls her old friend Poirot to come to solve it. Poirot discovers a killer who is totally without normal human feelings, and more people die or are found dead before he unmasks the true villain. This is late-Christie type fair, but the plot line is tight and there are a number of red herrings to keep the reader guessing. It's interesting to read Christie's take on young people of the late 60's too.