A.G. Riddle Books in Order
A.G. Riddle has written 14 books, published between 2013 and 2025. The first book is The Atlantis Gene (2013) and the newest is Labyrinth (2025). Publication order is the reading order below.
- Books
- 14
- Published
- 2013–2025
- Confirmed
- 14 of 14 titles
- Pages on record
- 4,279 in 9 of 14 books
- Reading time
- 71–107 hours
Reading time is an estimate, not a recorded figure: 4,279 pages at 300 words a page, read at 200–300 words a minute, covering the 9 of 14 titles with a page count on record.
A.G. Riddle writes fiction that the catalogue files under thrillers, suspense and science fiction, with subjects such as genetics and human evolution. The 14 listed books run from The Atlantis Gene (2013) to Labyrinth (2025). The Atlantis Plague (2013) and The Atlantis World (2014) follow the first title, and Departure, Genome, Pandemic and Winter World come later. Series named in the catalogue are Origin Mystery, Long Winter and Extinction Files, alongside standalone novels.
The Origin Mystery trilogy follows a scientist and a counter-terrorism agent racing to solve a puzzle tied to ancient discoveries and a genetic marker, traveling to multiple countries as they try to uncover the truth about human origins.
How many A.G. Riddle books are there?
A.G. Riddle has 14 books, released between 2013 and 2025. They include 3 separate series.
A.G. Riddle Books in Publication Order
The table lists all 14 A.G. Riddle books in the order they were published, with the release year, the page count where one is on record, and how many independent book listings confirm each title. Catalogue data as of September 2026.
- 120134454/4
- 220134244/4
- 320143164/4
- 420143144/4
- 520176964/4
- 62017–4/4
- 720194704/4
- 820194963/4
- 920193824/4
- 102021–3/4
- 112022–3/4
- 122023–4/4
- 132024–3/4
- 1420257363/4
A.G. Riddle books grouped by series
Each title below is a row in the publication-order table above. None of these groups has a reading-order page of its own on this site.
A.G. Riddle Standalone Novels
6 books6 titles published under this heading without a numbered place in a series.
Origin Mystery in order
3 booksLong Winter in order
3 booksExtinction Files in order
2 booksDo you have to read A.G. Riddle books in order?
You only need to read A.G. Riddle books in order within each series: the books listed here span 3 separate series, and each series has its own publication order.
Where to start with A.G. Riddle
Start with The Atlantis Gene (2013), the earliest published title.
What is the newest A.G. Riddle book?
Labyrinth (2025) is the newest A.G. Riddle book released so far.
Is there a new A.G. Riddle book coming?
No next A.G. Riddle book is announced in the catalogue, which is a gap in the listings it merges rather than a sign that the run has ended.
A.G. Riddle at a glance
- Still publishing
- A.G. Riddle published a book as recently as 2025.
- Release pace
- A.G. Riddle books have appeared about one a year on average.
- Length
- 4,279 pages across the 9 of 14 books with a recorded length, a median of 445 pages each.
- Busiest decade
- Most A.G. Riddle books, 9 of 14, were published in the 2010s.
- Corroboration
- 9 of the 14 titles appear in all four independent book listings, and every one of them in at least three.
What the A.G. Riddle books are about
7 of the 14 A.G. Riddle books carry subject tags in Open Library's catalogue. The subjects below are the ones that recur across them, most frequent first: thrillers is tagged on 6 of 7. The subjects are cataloguers’ headings, not a plot summary.
- Thrillers 6 of 7 books
- Evolution (Biology) 3 of 7 books
- Genetics 3 of 7 books
- Human beings 3 of 7 books
- Human evolution 3 of 7 books
- Origin 3 of 7 books
- Suspense 3 of 7 books
- Intelligence service 2 of 7 books