Medicus (Gaius Ruso) Books in Order
The Medicus series (also known as the Gaius Ruso series) is a sequence of historical mystery novels by British author Ruth Downie, following Roman army medical officer Gaius Petreius Ruso as he investigates crimes across the Roman Empire in the 2nd century AD. The first novel was published in 2006 as "Medicus" in the US and "Ruso and the Disappearing Dancing Girls" in the UK, with the series continuing through nine books published between 2006 and 2019.
Publication order
In the order the books were originally released.
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Buy on Amazon2006 · Ruth Downie
Medicus is a 2006 book by Ruth Downie. It is book 1 of the series Medicus (Gaius Ruso).
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Buy on Amazon2008 · Ruth Downie
Terra Incognita is a 2008 book by Ruth Downie. It is book 2 of the series Medicus (Gaius Ruso).
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Buy on Amazon2009 · Ruth Downie
Persona Non Grata is a 2009 book by Ruth Downie. It is book 3 of the series Medicus (Gaius Ruso).
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Buy on Amazon2010 · Ruth Downie
Caveat Emptor is a 2010 book by Ruth Downie. It is book 4 of the series Medicus (Gaius Ruso).
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Buy on Amazon2013 · Ruth Downie
Semper Fidelis is a 2013 book by Ruth Downie. It is book 5 of the series Medicus (Gaius Ruso).
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Buy on Amazon2014 · Ruth Downie
In Roman Britain, the medicus Ruso and his wife Tilla return to the borderlands to help tend to builders of Hadrian's Great Wall. When Ruso's clerk…
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Buy on Amazon2016 · Ruth Downie
Vita Brevis is a 2016 book by Ruth Downie. It is book 7 of the series Medicus (Gaius Ruso).
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2018 · Ruth Downie
The eighth novel in the Medicus series finds Ruso and Tilla investigating the death of the wife of Ruso's friend in the sacred hot spring of Aquae…
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Buy on Amazon2019 · Ruth Downie
Prima Facie is a 2019 book by Ruth Downie. It is book 9 of the series Medicus (Gaius Ruso).
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Frequently asked questions
What order should I read the Medicus (Gaius Ruso) books in?
Read them in publication order, starting with “Medicus”. Start with “Medicus.”
How many books are in the Medicus (Gaius Ruso) series?
We list 9 books by Ruth Downie , published between 2006–2019.
Where can I buy the Medicus (Gaius Ruso) books?
Each title above links to Amazon. See our affiliate disclosure.
Reading order compiled from author/publisher guidance and verified bibliographic data. Spotted an error? We continuously correct the catalog.