A.G. Riddle Books In OrderPublication Order of The Origin Mystery BooksPublication Order of The Extinction Files BooksPublication Order of The Long Winter BooksPublication Order of Standalone Novels8 Responses to “A.G. Riddle”Leave a Reply
| The Atlantis Gene | (2013) | Description / Buy at Amazon |
| The Atlantis Plague | (2013) | Description / Buy at Amazon |
| The Atlantis World | (2014) | Description / Buy at Amazon |
| Pandemic | (2017) | Description / Buy at Amazon |
| Genome | (2017) | Description / Buy at Amazon |
| Winter World | (2019) | Description / Buy at Amazon |
| The Solar War | (2019) | Description / Buy at Amazon |
| The Lost Colony | (2019) | Description / Buy at Amazon |
| Departure | (2014) | Description / Buy at Amazon |
| The Extinction Trials | (2021) | Description / Buy at Amazon |
| Lost in Time | (2022) | Description / Buy at Amazon |
| Quantum Radio | (2023) | Description / Buy at Amazon |
| Antarctica Station | (2024) | Description / Buy at Amazon |