Wounds of Honour is the first book in the Empire series by Anthony Riches.

The years is 181 AD and Marcus Valerius Aquila, an officer in the Praetorian Guards finds himself posted to the outer extremities of the Empire, Britain, for a reason he doesn’t learn until he gets there.  The Emperor Commodus has declared that he and his family are traitors and have been condemned to death.  The only way he can survive is to take up a new name and a new post as a centurion in a unit stationed on Hadrian’s Wall.

But nowhere is safe.  There are enemies among the natives to both the north and south of the wall as well as hidden enemies in the Roman army itself, searching for the traitor.  Marcus Tribulus Corvus, as he becomes known has to prove himself; to justify the risks others have taken, to stay alive and…