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Order of Standalone Novels
| The Spy In Question | (1988) | Hardcover Paperback Kindle |
| Spy Shadow | (1990) | Hardcover Paperback Kindle |
| Saviour’s Gate | (1991) | Hardcover Paperback Kindle |
| Exit Berlin/The Memory Church | (1992) | Hardcover Paperback Kindle |
| Last Rights | (1993) | Hardcover Paperback Kindle |
| Special Relations | (1994) | Hardcover Paperback Kindle |
| War Dance | (1995) | Hardcover Paperback Kindle |
| Ultra | (1997) | Hardcover Paperback Kindle |
| Killing Time | (2003) | Hardcover Paperback Kindle |
| Fatal Ally | (2019) | Hardcover Paperback Kindle |
Order of Non-Fiction Books
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