Writing as: Mark O'Neill

According to the short bio on Amazon: "Mark is a Scotsman, now living the expatriate life in W├╝rzburg, Germany. He has been writing in one form or another for the past 30 years as an author, journalist, copywriter, and editor. He is now an independently published fiction writer, currently working on the Department 89 espionage novels starring the female spy Captain Sophie Decker, protecting the German state."

Series Books
Sophie Decker The Renegade Spy (2017)
  The Reichsbank Gold (2017)
  The Executioner (2017)
  Sovereign Territory (2017)
  The Assassin's Child (2018)
  The Beethoven Syndrome (2018)
  The Traitor (2018)
  The Peace Emissary (2018)
  Operation Eternal Vengeance (2018)
  Above The Law (2019)
  Regime Change (2019)
  A Very Bloody Christmas (ss) (2019)
  Operation Thunderbolt (2020)
  The Devil Incarcerated (2020)
  Valkyrie (2020)