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Publication Order of Ryan Kealey Books
| The American | (2006) | Hardcover  Paperback  Kindle |
| The Assassin | (2007) | Hardcover  Paperback  Kindle |
| The Invisible | (2008) | Hardcover  Paperback  Kindle |
| The Exile | (2010) | Hardcover  Paperback  Kindle |
| The Operative | (2012) | Hardcover  Paperback  Kindle |
| The Courier | (2013) | Hardcover  Paperback  Kindle |
| Threatcon Delta | (2014) | Hardcover  Paperback  Kindle |