Join Diocletian as he ups the ante, and continues his bold experimentation to reform the Imperial system to deal with the new world of threats that have overwhelmed Rome for the last one hundred years. But will this new system, that we know as the Tetrarchy, survive the biggest threat of all, human ambition?

Diocles, son of a slave. WHAT?? Say that again. Diocles, who assumed the regnal name of Diocletian, was the first Roman Emperor to be born the son of a former slave. He would rise from dirt to the pinnacle of Roman power, yet another of the Illyrian cabal, hellbent on restoring Rome to her former glory. But rather than focusing simply on military brilliance to accomplish that objective, like his immediate (really all) predecessors had, Diocletian decides to experiment with the hallowed structure of the Roman imperial system to see if he can build a better, more sustainable, mousetrap.

Probus, Aurelian's prodigy and friend, rose to the purple shortly after Aurelian's murder just like his mentor had, through sheer grit and merit. In five short years he pursued Aurelian's policies brilliantly, with a deftness of touch perhaps that Aurelian lacked. He was everywhere at once, East and West, North and South, campaigning north of the Rhine like Germanicus and Drusus, showing the Persians that Rome was no longer afraid, in short, helping to reinforce Aurelian's miracle. To friend and foe alike, lest there be any doubt, thanks to Probus all knew - ROME WAS BACK.