Before Sam Spade chased the black bird in The Maltese Falcon and Nick and Nora Charles stirred their first martinis in The Thin Man, the Continental Op walked early twentieth century San Francisco’s mean streets for the Continental Detective Agency. Dashiell Hammett used his own experiences as a Pinkerton operative to lend realistic detail to this creation. These first five stories were published in Black Mask magazine in 1923. - Summary by Winston Tharp