Romans on the Silk Road. A Novel Spanning Two Continents and Empires, Paperback/Brian McElney

In the year BC 35, it is recorded that 145 Roman soldiers settled in northwestern China. How did they get there? This novel creates a narrative starting thirty years before, following the fortunes and misfortunes of one of those soldiers, Marcus, as he fights with Julius Caesar in Gaul and with Marcus Licinius Crassus against the Parthians.