A teenage murder witness is drowned in a tub of apples At a Hallowe'en party Joyce
- a hostile thirteen-year-old
- boasts that she once witnessed a murder When no-one believes her she storms off home But within hours her body is found still in the house drowned in an apple-bobbing tub That night Hercule Poirot is called in to find the evil presence' But first he must establish whether he is looking for a murderer or a double-murderer