The story opens on the day that the Western Roman Empire collapses finally in 470AD, with the city itself over-run. In the preceeding months a small group of British Roman soldiers, led by a true hero, have journeyed to the city and have arrived just before the final climax. The task they have set themselves is to save the spirit of the empire by rescuing the young son of the last Emperor, Romulus Augustus. Having found him and taken him away they decide to journey across northern Europe as there are strong rumours that an entire Legion of the Roman Army has remained loyal to Rome and has become an independent unit. They hope by finding the Legion and establishing the boy as the legitmate Emperor a stand can be taken and the Empire revived. However, their search is fruitless and eventually the leader and the child return to the Britain of the Dark Ages, where they re-emerge in legend as Merlin and Arthur Pendragon