About the book: 2013 / Our contemporary, Alexey Terekhin, an officer in the courier service, after the crash of a passenger plane becomes the owner of an unusual artifact, with the help of which he gets to Ancient Byzantium. Thanks to his officer training, from a hoplite mercenary he becomes a tribune, commander of the chiliarchy, having passed through all the hierarchical levels of the army. Due to his perseverance, personal courage and intelligence, Alexei manages to become a blood brother of the army commander Ostris and carry friendship through the centuries.