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Labyrinth (Standalone) was the most recently released book by A.G. Riddle, on October 21st, 2025.
A.G. Riddle Stats: The highest rated book by A.G. Riddle on Book Notification is Pandemic, the first novel in The Extinction Files series. The second-highest rated book is Lost in Time, a Standalone novel.
The most read book by A.G. Riddle on Book Notification is The Atlantis Gene, the first novel in The Origin Mystery series. The second most read book is Winter World (The Long Winter #1).
Below is a complete list of A.G. Riddle books in publication and chronological order, broken down by series. The most popular series by A.G. Riddle is The Origin Mystery Series.
A group of people uncover a global conspiracy involving ancient artifacts and dangerous secrets.
Science-fiction thrillers about a deadly virus and a race against time to save humanity.
A group of survivors navigate a now frozen world and unearth a mysterious threat, all while attempting to save the future.
A.G. Riddle was born in Shelby, North Carolina, USA.
A.G. Riddle is known for writing in the Sci-Fi and Thriller genres.
A.G. Riddle has written 6 standalone novels, starting with Departure in 2014. The most recently released novel was Labyrinth, which was released in 2025. There are no upcoming standalone novels by A.G. at this time.
A.G. Riddle has also written The Origin Mystery series which has 3 books including The Atlantis Gene and The Atlantis Plague.
Riddle's book, Lost in Time was nominated for the Goodreads Awards, Best Science Fiction, in 2022.
Fans of A.G. Riddle also enjoy these authors:
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Home » Authors » A.G. Riddle List of Books
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Written by Rachel Macy Stafford
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