"The Big Four" by Agatha Christie is a detective novel published in 1927. When a dying stranger staggers into Hercule Poirot's bedroom and whispers about an international crime cartel, the famous detective and his friend Hastings find themselves pursuing a shadowy organization led by four powerful masterminds. Their investigation takes them across countries as they uncover kidnappings, mysterious murders, and a deadly new weapon, all orchestrated by criminals who seem always one step ahead. (This is an automatically generated summary.)
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