MP3 CD Format<br/>"If one man does not make a move, the other must, and by permitting the adversary to make the attack one learns something about him."<br/>In The Big Four, Hercule Poirot investigates a string of murders that appear to be disconnected on the surface, but Agatha Christie's Belgian detective sees only tiny detail that link them all together. For some obscure reason that Poirot is determined to uncover, the number four keeps popping up with every killing. Poirot soon learns that there is in fact an international crime gang dubbed "The Big Four," and he sets off after them. With Hastings once again at his side, Monsieur Poirot travels all over Europe to find them, but the pair always seem to be a step behind this shadowy syndicate.<br/>Originally a collection of short stories that Christie re-worked along with her brother-in-law, The Big Four not only sees the return of Hastings and Inspector Japp, but it also introduced to the world Achille Poirot, the identical twin of Hercule Poirot himself!