The new mystery featuring Dr Clyde Deacon - A gun that wasn't fired. A bridge that wasn't crossed. And a tack that wasn't used. These are the challenging clues Dr Clyde Deacon, a small-town physician in 1902 America, must decipher to solve the murder of Ephraim Purcell, a local wealthy businessman with a rapacious appetite for money and women. His personal life disintegrating, Dr Deacon must race against mounting town pressure to uncover the perpetrator - and the shocking motive behind the crime.