There are 8 books in the The Medicus series. The newest book is Memento Mori which came out in 2018.

**THE NEW YORK TIMES BESTSELLER**

Welcome to the most remote part of the Roman Empire. Britannia, AD117 – primitive, cold, damp and very muddy.

The Gods are not smiling on army doctor Gaius Petreius Ruso in his new posting in Britannia. He has vast debts, a slave girl who is…
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3
Persona Non Grata

Book cover of Persona Non Grata

The third novel in the acclaimed Gaius Petreius Ruso series by the New York Times bestselling Ruth Downie―this time set in ancient Gaul.

Ruth Downie is published as R.S. Downie in the UK, and this book is available there under the title Ruso and the Root of All Evils.

At…

4
Caveat Emptor

Book cover of Caveat Emptor

In her fourth novel, Ruth Downie brings to life the corruption and treachery of Roman-occupied Britain, as it closes in on her winsome leading man, Gaius Petreius Ruso.

Ruso and Tilla, now newlyweds, have moved back to Britannia, where Ruso's old friend and colleague Valens has promised to help him…

6
Tabula Rasa

Book cover of Tabula Rasa

The medicus Ruso and his wife, Tilla, are back in the borderlands of Britannia, where he is tending the builders of Hadrian's Great Wall. Having been forced to move off their land, the Britons are distinctly on edge and are still smarting from the failure of a recent rebellion that…

7
Vita Brevis

Book cover of Vita Brevis

Ruso and Tilla's excitement at arriving in Rome with their new baby daughter is soon dulled by their discovery that the grand facades of polished marble mask an underworld of corrupt landlords and vermin-infested tenements. There are also far too many doctors--some skilled, but others positively dangerous.

Ruso thinks he…

8
Memento Mori

Book cover of Memento Mori

The eighth gripping novel in the bestselling Medicus series, in which Ruso and Tilla investigate the death of the wife of Ruso's friend in the sacred hot spring of Aquae Sulis.

A scandal is threatening to engulf the popular spa town of Aquae Sulis (modern-day Bath). The wife of Ruso's…