These mysteries are all short but powerful reads (following Poe's dictum that a work, to be effective, must be readable in one sitting). The third mystery will be a "battle royale" between two of the most popular brothel madams in 1860s New York City. Come join the fun with Detective O'Malley and his partner, Madame Rebecca Charming, as they battle crime and Tammany Hall city corruption. As author Jim Musgrave says in his app for iPad, iPhone and Android, "Carry 1860s New York City around in your pocket or purse!"