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Publication Order of Standalone Novels
| Harry’s Game | (1975) | Hardcover Paperback Kindle |
| The Glory Boys | (1976) | Hardcover Paperback Kindle |
| Kingfisher | (1977) | Hardcover Paperback Kindle |
| Red Fox / The Harrison Affair | (1979) | Hardcover Paperback Kindle |
| The Contract | (1980) | Hardcover Paperback Kindle |
| Archangel | (1982) | Hardcover Paperback Kindle |
| In Honour Bound | (1984) | Hardcover Paperback Kindle |
| Field Of Blood | (1985) | Hardcover Paperback Kindle |
| At Close Quarters / An Eye for an Eye | (1987) | Hardcover Paperback Kindle |
| A Song In The Morning / Shadow on the Sun | (1987) | Hardcover Paperback Kindle |
| The Journeyman Tailor | (1989) | Hardcover Paperback Kindle |
| Home Run / The Running Target | (1989) | Hardcover Paperback Kindle |
| Condition Black | (1991) | Hardcover Paperback Kindle |
| The Fighting Man | (1994) | Hardcover Paperback Kindle |
| Heart of Danger | (1995) | Hardcover Paperback Kindle |
| Killing Ground | (1997) | Hardcover Paperback Kindle |
| Dead Ground / The Waiting Time | (1998) | Hardcover Paperback Kindle |
| A Line in the Sand | (1999) | Hardcover Paperback Kindle |
| Holding the Zero | (2000) | Hardcover Paperback Kindle |
| Untouchable | (2001) | Hardcover Paperback Kindle |
| Traitor’s Kiss | (2003) | Hardcover Paperback Kindle |
| The Unknown Soldier | (2004) | Hardcover Paperback Kindle |
| Rat Run | (2005) | Hardcover Paperback Kindle |
| The Walking Dead | (2007) | Hardcover Paperback Kindle |
| Time Bomb | (2008) | Hardcover Paperback Kindle |
| The Collaborator | (2009) | Hardcover Paperback Kindle |
| The Dealer And The Dead | (2010) | Hardcover Paperback Kindle |
| Deniable Death | (2011) | Hardcover Paperback Kindle |
| The Outsiders | (2012) | Hardcover Paperback Kindle |
| The Corporal’s Wife | (2013) | Hardcover Paperback Kindle |
| Vagabond | (2014) | Hardcover Paperback Kindle |
| No Mortal Thing | (2015) | Hardcover Paperback Kindle |
| Jericho’s War | (2017) | Hardcover Paperback Kindle |
| Battle Sight Zero | (2019) | Hardcover Paperback Kindle |
| Beyond Recall | (2020) | Hardcover Paperback Kindle |
| A Damned Serious Business | (2020) | Hardcover Paperback Kindle |
| The Crocodile Hunter | (2021) | Hardcover Paperback Kindle |