The Byzantine Empire, 2010. Emperor Constantine XXI Cantacuzenus wants to return the treasures looted by the Crusaders in 1203, and his daughter to marry the son of the president of Italy. To do this, it's just a convenient time: the world elite gathered in Constantinople on a seven-day Golden Hippodrome - the famous chariot races. But while the Emperor plotting to achieve his goals, his wife suddenly interested rector of the Academy of Athens, one of the most brilliant men of the Empire, and the Metropolitan Heraclium dissatisfied fall authority of the Church in society, plotting to disrupt the Hippodrome ... "Byzantium XXI - series novels in the genre of alternative history, telling about a world where the Byzantine Empire did not fall in 1453, but there are up to our time - as before, the envy of all.