"One of the most original and best spy-kids authors of the century." (New York Times)
The first book in his Jason Steed series was published in 2008. Since then the series has won over fans across the world with its mix of action, emotion and coming of age originality.
Mark was snapped up by the Zitwer agency and since has written 5 more in the series now published by Sourcebooks.
Fictionreviwer.com named 'Fledgling Jason Steed' Young adult book of the year 2009. The book was also voted as finalist in the 2009 'Indie book Awards'. In 2013 in the Beverly Hills Book Awards it came first in Juvenile fiction.
Mark has spent many years interviewing ex-Edelweiss Pirate and Hitler Youth members across the globe and he is seen as the foremost expert on The Edelweiss Pirates. The novels are fiction based on actual events that happened between 1936-1945 in Germany.