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Publication Order of Standalone Novels
| The Omega Scroll | (2005) | Hardcover Paperback Kindle |
| The Beijing Conspiracy | (2007) | Hardcover Paperback Kindle |
| The Maya Codex | (2010) | Hardcover Paperback Kindle |
| Inca Prophecy | (2012) | Hardcover Paperback Kindle |
| The Alexandria Connection | (2014) | Hardcover Paperback Kindle |
| The Russian Affair | (2018) | Hardcover Paperback Kindle |