The year is 274AD. The month is May.
"Aurelian, Emperor of Rome, has one last enemy left to conquer: in Gaul, the usurper Tetricus holds sway, and Aurelian will need every last man if he is to unify his domain and bring peace to the Empire. One of those men is Cassius Corbulo, now seconded to the legion of Prefect Venator in southern Gaul. When a leading general is abducted on the eve of battle, Cassius is ordered to find and rescue him before the enemy gain crucial intelligence."