Author · updated 2026
A.G. Riddle Books in Order
Every A.G. Riddle book in publication order — 9 in total, spanning 2013–2019.
Publication Order of The Origin Mystery Books
| # | Title | Year | Get it |
|---|---|---|---|
| 1 |  The Atlantis Gene | 2013 | Amazon US UK |
| 2 |  The Atlantis Plague | 2013 | Amazon US UK |
| 3 |  The Atlantis World | 2014 | Amazon US UK |
Publication Order of The Extinction Files Books
| # | Title | Year | Get it |
|---|---|---|---|
| 1 |  Pandemic | 2017 | Amazon US UK |
| 2 |  Genome | 2017 | Amazon US UK |
Publication Order of The Long Winter Books
| # | Title | Year | Get it |
|---|---|---|---|
| 1 |  Winter World | 2019 | Amazon US UK |
| 2 |  The Solar War | 2019 | Amazon US UK |
| 3 |  The Lost Colony | 2019 | Amazon US UK |
Publication Order of Standalone Novels
| # | Title | Year | Get it |
|---|---|---|---|
| 1 |  Departure | 2014 | Amazon US UK |
Every title by year All 9, oldest to newest
| # | Title | Year | Get it |
|---|---|---|---|
| 1 | The Atlantis Gene | 2013 | Amazon US UK |
| 2 | The Atlantis Plague | 2013 | Amazon US UK |
| 3 | The Atlantis World | 2014 | Amazon US UK |
| 4 | Departure | 2014 | Amazon US UK |
| 5 | Pandemic | 2017 | Amazon US UK |
| 6 | Genome | 2017 | Amazon US UK |
| 7 | Winter World | 2019 | Amazon US UK |
| 8 | The Solar War | 2019 | Amazon US UK |
| 9 | The Lost Colony | 2019 | Amazon US UK |
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