Synopsis: (courtesy of Amazon)Mark Strang is asked to travel far back in time to the period of Caesar and the great Roman Triumvirate, in order to investigate the disappearance of a fellow time agent. What he discovers is that Caesar has been subverted by a Closer representative and that the Triumvirate has been undermined with civil war, mutual destruction, and the rewriting of history looming in the near future[.

This is the third [volume of Timeline Wars:
Patton's Spaceship (sometimes called 'Crux of Battle')
Washington's Dirigible
Caesar's Bicycle

Point of divergence from our timeline: 49 BC