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A. G. Riddle Books
We have 16 books by A. G. Riddle, newest first. The most recent release is Labyrinth (October 2025). Series: The Long Winter Series, The Extinction Files and The Atlantis Trilogy. See the full list.
On LoveReading: The Long Winter Series (2 books), The Extinction Files (2 books), The Atlantis Trilogy (4 books). Each is listed above.
What is the most recent A. G. Riddle release?
Labyrinth, released October 2025.
How many A. G. Riddle books does LoveReading have?
16, listed above with the newest first.
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