Series

Gray Man

by Mark Greaney

6 books in reading order

  1. #1 The Gray Man Mark Greaney · 2009
  2. #2 On Target Mark Greaney · 2010
  3. #3 Ballistic Mark Greaney · 2011
  4. #4 Dead Eye Mark Greaney · 2013
  5. #5 Back Blast Mark Greaney · 2016
  6. #6 Gunmetal Gray Mark Greaney · 2017