“Cato & Macro” is a historical fiction series by Simon Scarrow, focusing on the unlikely friendship and military adventures of a young, idealistic Roman legionary, Cato, and a grizzled, cynical veteran, Macro. The series delivers a gritty and realistic portrayal of Roman legionary life during the 1st and 2nd centuries BC, blending thrilling battles with nuanced character development and sharp, often dark, humor. It distinguishes itself through meticulous research and a deeply immersive depiction of the Roman military machine.