Winter, 48 BC. Caesar and his small force are trapped in the Egyptian city of Alexandria. Caught up in the dynastic struggles of the House of Ptolemy, the consul has sided with the clever and ruthless Queen Cleopatra. Her brother and fellow monarch Ptolemy XIII languishes in the palace, a hostage of Caesar’s, while a huge army under the command of the Egyptian general Achillas closes on the city to free him. With both the future of this ancient land and the safety of Caesar and his men at stake, Fronto and his friends face the terrible task of holding an unfamiliar city under siege, in the desperate hope that reinforcements will reach them before the enemy break in. But Egyptian reinforcements gather too, and with the interference of the youngest princess, Arsinoë, the future is far from written. Trapped, besieged and outnumbered, time is running out for the Romans, as shadows loom across the sands of Egypt

46 BC. Pompey is dead, Egypt is settled, and Rome is controlled by the loyal Marcus Antonius. As the new year looms, Rome’s greatest general and dictator Julius Caesar moves precipitously to take on the last stronghold of the rebel faction: Africa.Crossing against all advice in the middle of winter, with minimal forces and little forward planning, the campaign almost dies before it begins, legions scattered across the sea by vicious storms, the general putting ashore with just a single legion and his most trusted veteran commander: Marcus Falerius Fronto. But the war in Africa is no easy task. Scipio, Cato and Caesar’s one-time lieutenant Labienus have gathered an enormous force to counter him, and are prepared to fight to the death. With few troops, no supplies, little foreknowledge, and all the problems of a winter campaign, Fronto and Caesar face a monumental struggle, yet they know they must win for the prize in this campaign is nothing less than control of the republic itself. Rome hangs in the balance.

in 55 BC Caesar's army gathers in the north of Gaul, preparing to drive invading Germanic peoples from Gaul and traverse the dangerous northern sea to punish the tribes of Britannia for assisting Gaulish rebels.

The war in Africa is over and the rebel cause hangs by a thread. With opposition to Caesar now led by Labienus and by Pompey’s sons in Hispania, Caesar is one step from ending the civil war that has plagued Rome for years. Before the war can be pursued, though, Caesar has matters to attend to in Rome. And against a backdrop of glorious triumphs and civil friction, the general’s old warhorse Marcus Falerius Fronto begins to uncover a series of events that may have a cause in common. Investigation, however, is sidelined as necessity finally draws everyone across the sea to the crucible of war once again. In Hispania the clouds gather, for though the rebels may have been pushed into a corner, they are far from beaten. With the great name of Pompey and the tactical genius of Labienus on their side, Caesar must fight hard to win the day. Fronto and his friends must give all they have now, for the prize for this campaign is the ultimate one: the republic itself.

The war in Gaul is over. The rebels are defeated. Now the battle for Rome has begun.

The war in Gaul is over, but the fight for Rome is only just beginning. Denied his consulship by the senate and nearing the end of his term as governor, Caesar waits at Ravenna with one legion, making a last attempt at reconciliation. Threatened with prosecution if he returns to Rome, just one path is becoming clear: war against the senate. Fronto and Galronus are bound to the service of the Proconsul, facing a war against other Romans, and able neither to prevent nor avoid it. Caesar’s path to safety will take them the length of Italy, and to familiar old lands in southern Gaul and Spain, where their friends and family now wait, believing themselves safe from hostilities. With a new officer stirring up trouble, Pompey and the senate defying them, a father-in-law busily incriminating himself and powerful Roman generals consolidating positions against them, Fronto and his friend are bound for that worst of all conflicts: Civil War.