It is the fifth century of the Byzantium Empire. Flavius Belisaurius is son of the governor of Dorostorum City, and his father has two goals: to keep out the barbarians and to expose the deep roots of secular and ecclesiastical corruption. Seeking to prevent a raid, the governor enlists the help of the powerful magnate Senuthius Vicinus.

Vicinus's corruption is widespread but his support is crucial to win the battle. When Vicinus betrays this trust, Belisaurius Jnr witnesses the death of his father and the irretrievable tarnishing of his reputation. With Belisaurius's life changed for good, he swears vengeance on the man who betrayed his father and begins a journey from which there is no virtuous way back.

David Donachie was born in Edinburgh in 1944. He has always had an abiding interest in British naval history of the eighteenth and nineteenth centuries, as well as the clandestine services during the Second World War. He has 51 published novels to his credit. David lives in Deal, the historic English seaport on the border of the English Channel and the North Sea.