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The Last Line of Defence (Department 89, #17) was the most recently released book by Mark O'Neill, on July 1st, 2024.
Mark O'Neill Stats: The highest rated book by Mark O'Neill on Book Notification is The Renegade Spy, the first novel in the Department 89 series.
The most read book by Mark O'Neill on Book Notification is The Renegade Spy, the first novel in the Department 89 series.
Below is a complete list of Mark O'Neill books in publication and chronological order, broken down by series. The most popular series by Mark O'Neill is the Department 89 Series.
Mark O'Neill was born in Edinburgh,.
Mark O'Neill is the author of the Department 89 series which currently consists of 17 novels. The Department 89 series started in 2017 with the novel The Renegade Spy. The most recently released novel in the Department 89 series was The Last Line of Defence which was released in 2024. There are no upcoming novels for the Department 89 series.
Mark O'Neill has also written The Scorpion series which has 3 books including The Desert Scorpion and The Praetorian Scorpion.
The most common authors followed by users who also follow Mark O'Neill are:
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Home » Authors » Mark O’Neill (Department 89 Series) List of Books
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