Deano in Blogcritics: "It is personality that drives McCullough's vision of Rome and the Romans within. Her vivid portraits of Marius, Sulla, Julius Caesar, Brutus, Anthony, Cato and the countless others that inhabit her pages, are highly realistic, almost evocative personalities, reflecting the daily lives, ambitions, philosophies, obsessions, egos, emotions and respective madnesses of the historical personages."
Irene Hahn in About Ancient History: "October Horse is a fitting ending to a fascinating series of books. Well researched, excellently constructed, they have given rise to a number of fans of Roman history."
Diane in Nobody Knows Anything: "Given how much I loved the first five books—to the point of haunting used book stores until I found the first few in hardback—I found The October Horse to be an unfortunate conclusion to the Masters of Rome series."