Eagles of the Empire is a series of historical military fiction novels written by Simon Scarrow. The series began in July 2000 with the publication of Under the Eagle, and as of March 2022 there have been 21 novels released in the series, with the 22nd novel due in November 2023.Eagles of the Empire takes place within the Roman Empire, beginning in AD 42 during the reign of Emperor Claudius. The books follow the lives of two officers in the Imperial Roman army, Quintus Licinius Cato and Lucius Cornelius Macro. The first book introduces Cato to the Roman army and then follows the development of the friendship and careers of the two soldiers. The series also features many historical figures and interweaves them into the fictional plots influenced by historical events. The characters Cato and Macro were additionally used in one book of the TimeRiders series, Gates of Rome (2012), where they served as supporting characters when the three protagonists travel back to Ancient Rome. Scarrow allowed his brother Alex to make use of the characters in his own novel. Source: Wikipedia (en)