A 1924 first edition of Agatha Christie's Poirot Investigates was recently sold at auction for a whopping �40,630 ($63,195.90) because of its very rare dust jacket, on which the famed Detective Poirot is pictured. The collection of short stories was not Christie's first Poirot book, but it is the first to feature the detective's name in the title and a rare instance of his depiction. The drawing o... [more]