Book excerpt: A Roman centurion sent to the empire’s distant northern edge encounters treachery beyond Hadrian’s Wall in this historical epic series debut. Roman Britain, Fourth Century AD. Once a soldier in an elite legion from the Danube, newly promoted centurion Aurelius Castus now finds himself stuck in the provincial backwater of Britannia. Just beyond Hadrian’s Wall are a savage people allied with Rome known as the Picts. When their king dies under mysterious circumstances, an envoy must be sent to negotiate with their new leader. And Castus is selected to command the envoy’s bodyguard. What starts as a simple diplomatic mission ends in bloody tragedy. As Castus and his men fight for their lives, the legionnaire discovers that nothing about his doomed mission was ever what it seemed. The first book in Ian James Ross’s Twilight of Empire series, War at the Edge of the World is an exciting debut from an author as gifted at telling a story as he is at bringing the Late Roman Empire to life.