A print-on-demand edition of Christie's masterpiece especially for readers who prefer the old pocket-sized 'A-format' paperbacks. 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…