376 AD: The Eastern Roman Empire is alone against the tide of barbarians swelling on her borders. Emperor Valens juggles the paltry border defenses to stave off invasion from the Goths north of the Danube. Meanwhile, in Constantinople, a pact between faith and politics spawns a lethal plot that will bring the dark and massive hordes from the east crashing down on these struggling borders. The fates conspire to see Numerius Vitellius Pavo, enslaved as a boy after the death of his legionary father, thrust into the limitanei, the border legions, just before they are sent to recapture the long-lost eastern Kingdom of Bosporus.

AD 377: Numerius Vitellius Pavo and the men of the XI Claudia return to Constantinople from their brutal Persian sortie to hear widespread tales of Thracia’s plight and the precarious mountain blockades. Each of them knows what is at stake should those passes fall: the heartland of the Eastern Empire would face the wrath of the barbarians and loved ones would be at the mercy of their savage blades.

1315 BC: Tensions soar between the great powers of the Late Bronze Age. The Hittites stand toe-to-toe with Egypt, Assyria and Mycenaean Ahhiyawa, and war seems inevitable. More, the fierce Kaskan tribes - age-old enemies of the Hittites - amass at the northern borders. When Prince Hattu is born, it should be a rare joyous moment for all the Hittite people. But when the Goddess Ishtar comes to King Mursili in a dream, she warns that the boy is no blessing, telling of a dark future where he will stain Mursili’s throne with blood and bring destruction upon the world. 

Carbo and his loved ones leave Rome for the sleepy Italian countryside, desperate to recover from their recent traumas. But a chance encounter with locally notorious masked bandits leads to a devastating outcome. Carbo has to fight his own demons and an evil conspiracy to save himself and his friends, and avenge his loss.

Rome, AD 27 - Gaius Valerius Carbo has returned to the heart of the empire after 25 years of serving in the legions. He just wants to retire in peace. But his friends are gone, his family is dead, and his home now belongs to someone else. When local thugs attack the tavern where he is resting, he finds himself caught up in the fight and inadvertently becomes the new owner of the building - and the enemies that come with it.

As twilight descends on the 3rd century AD, the Roman Empire is but a shadow of its former self. Decades of usurping emperors, splinter kingdoms and savage wars have left the people beleaguered, the armies weary and the future uncertain. And into this chaos Emperor Diocletian steps, reforming the succession to allow for not one emperor to rule the world, but four. Meanwhile, two boys share a chance meeting in the great city of Treverorum as Diocletian's dream is announced to the imperial court. 

55 BC and Caesar's army gathers in the north of Gaul, preparing to drive away invading Germanic peoples and to traverse the dangerous northern ocean bringing punishment to the tribes of Britannia for their assistance of Gaulish rebels. But Fronto's troubles don't stop there. As his burgeoning relationship with Lucilia steps to a new level, so do his responsibilities at home, a situation exacerbated by the disruptive influence of the villainous Clodius in the city, causing trouble and endangering those about whom Fronto cares most.

Having been transported to the world of Tanis, separated from everything they know, the Ninth find themselves caught amid an ancient war of the gods. Like a dark tide, the Horde is slowly conquering one nation after another, and a great migration of peoples has begun fleeing westward before the enemy’s advancing armies. No one has been able to stand against the might of the Horde. But the Horde has never faced the power of a Roman legion. 

It is the eve of destruction. Gaul seethes and bucks more than ever in revolt against the Roman invader, with even Caesar's allies beginning to question their loyalty. A conspiracy of Druids and Kings move the pieces into position in their great game of independence, all led by the powerful exile Vercingetorix. The lands of the Belgae burn in the vengeful aftermath of a winter that saw countless Romans butchered by the Eburone King: Ambiorix. 

As tensions build in Gaul and the druids manoeuvre the tribes towards general rebellion, Priscus and the diminishing senior staff of Caesar's army prepare to return to Britannia, this time with a vast army and a will to crush the tribes of that mysterious island. Meanwhile, Fronto contemplates a non-military future as he settles into the life of a married nobleman, socialising with Rome's elite and coming to terms with the decline in his fitness.  

When Valens, a junior officer in the Roman Army, joins a crack squad of soldiers on a dangerous mission, little does he know what's in store for him. Tasked with rescuing the young Prince Sasan, who has been imprisoned in the impenetrable Castle of Silence, the troops set out across Mesopotamia and into the mountains south of the Caspian Sea. Deep in hostile territory, inexperienced Valens finds himself in charge. And as one by one his soldiers die or disappear, he begins to suspect that there is a traitor in their midst and that the rescue is fast becoming a suicide mission. 

AD 1068: the armies of the Seljuk Sultanate tear at Byzantium's borders, poised to strike the death blow that will bring all Anatolia under their yoke. Alp Arslan's armies grow stronger with every passing season, while the beleaguered Byzantine soldiers defend for their lives, the hope in their hearts guttering its last.

When the falcon has flown, the mountain lion will charge from the east, and all Byzantium will quake. Only one man can save the empire ... the Haga!1046 AD. The Byzantine Empire teeters on full-blown war with the Seljuk Sultanate. In the borderlands of Eastern Anatolia, a land riven with bloodshed and doubt, young Apion's life is shattered in one swift and brutal Seljuk night raid. Only the benevolence of Mansur, a Seljuk farmer, offers him a second chance of happiness.

Augustus Caesar rules Imperial Rome at the height of its power, as the Roman Empire stretches across the known world. Cassius, son of one of her most powerful families, is the personification of Rome's imperial strength: wealthy, popular, a war hero with a decorated military career, he hides a secret. After his nerve is broken in Germany, the thought of genuine armed combat is enough to send him into a cold sweat of fear and shame.

In 1071 AD, Emperor Romanus Diogenes has rekindled the guttering flame of Byzantium. Yet in the eastern borderlands, two vital strongholds hang in the balance. Manzikert and Chliat must be won to secure the empire's fragile frontiers and vanquish the would-be usurpers who covet the imperial throne. But Sultan Alp Arslan and his vast Seljuk armies look to those twin fortress-towns also, resolute on seizing them first.