On the mist-shrouded Isle of Hibernia, now known as Ireland, 26 years have passed since the murder of the high king, Fiacha Finnolach. The usurper Elim of Ulster’s promises of peace and prosperity have come to naught, as drought and famine afflict the land. Across the Irish Sea, the Roman Governor of Britannia, Julius Agricola, is met with an intriguing proposition. Fiacha’s son, Tuathal Techtmar, born when his pregnant mother fled into exile, has grown to manhood. He seeks the aid of Rome in avenging his father and becoming High King of Hibernia.

The year is 104 A.D. Two years have passed since King Decebalus knelt in submission to Emperor Trajan. The recent war between Rome and Dacia was brutal and costly for both sides. The graves of many thousands lie between the River Danube and the gates of Sarmizegetusa.

Duty bound to save the Empire from falling further under a tyrannical usurper, Cursor resolves to unravel the conspiracy and bring the perpetrators to justice. Aiding him is an old friend; a retired Master Centurion named Gaius Calvinus. Regrettably, they know that if successful, Tiberius' retribution will be swift and brutal, sparing neither the innocent nor the guilty. This leaves only two dark paths for Cursor and Calvinus; either allow the pending reign of terror under a ruthless usurper, or unleash the unholy vengeance of an emperor betrayed.

In the year A.D. 9, three Roman Legions under Quintilius Varus were betrayed by the Germanic war chief, Arminius, and destroyed in the forest known as Teutoburger Wald. Six years later Rome is finally ready to unleash her vengeance on the barbarians. The Emperor Tiberius has sent his adopted son, Germanicus Caesar, into Germania with an army of forty-thousand legionaries. The come not on a mission of conquest, but one of annihilation. With them is a young legionary named Artorius.

Four years have passed since the Roman invasion of Britannia. Though the imperial legions won a number of spectacular victories, the imperial governor, Ostorius Scapula, realizes that Emperor Claudius declared victory far too soon. An ever-volatile land, hostile forces exist even amongst loyalists and allies. To the north the allied kingdom of the Brigantes is on the verge of civil war, while to the west Rome’s old nemesis, Caratacus, has returned. A former prince of the conquered Catuvellauni, he seeks revenge for the death of his brother and the subjugation of their people.