Centurion (Eagles of the Empire #8) by Simon Scarrow

Between the great powers of Rome and her old foe Parthia lies the desert kingdom of Palmyra. Parthia plans to gain control of Palmyra to launch an invasion of the Roman provinces. Prefect Macro and Centurion Cato are in charge as the Second Illyrian cohort prepares for the coming invasion.

With Palmyra's royal household on the brink of open revolt, a task force is dispatched to defend its King presence, it starts amassing its troops for war. After the Parthians attack an outpost, Macro's cohort must march against the enemy, deep into treacherous territory.
If Palmyra is not to fall into the clutches of Parthia, they will have to defeat superior numbers in a desperate siege and pitched battle.

The quest for peace has never been more challenging, nor more critical for the future of the empire.

INCLUDES THE UNTOLD - AND HORRIFIC STORY OF MACRO'S BOYHOOD

Genres: Historical Fiction - Roman - War - Adventure - Military Fiction - Roman History