Cato took out the leather tube and extracted the document authorising him to take command. After the conversation he had had with Quertus the previous night, and another with Macro before dawn, he felt anxious. If the Thracian centurion chose this moment to challenge him, in front of the men he had ruled for months with a rod of iron, then Cato had no illusions about his fate. If he was lucky he would be arrested and locked in the safe room below the headquarters. Accordingly he had decided to play it cautiously, until he had had a chance to establish himself at the fort; he would bide his time until he discovered Quertus’s weak point.

Cato unrolled the document and began to read.

‘I, Tiberius Claudius Drusus Germanicus, first citizen, chief priest, father of the nation, do hereby proclaim that Quintus Licinius Cato has been appointed Prefect of the Second Thracian Cavalry Cohort. The said Quintus Licinius Cato is entrusted to uphold the honour of the cohort, obey the officers placed over him, and swear to devote his life to the Emperor and the Senate and people of Rome.’ Cato paused to add emphasis to what followed. ‘This appointment is by imperial decree, and the officers and men over whom Quintus Licinius Cato has been placed in command are reminded that they are bound by the oath that they took on enlistment to obey those placed in authority over them as they would their Emperor, without question, upon pain of the full rigour of military law. By my hand I affirm this.’

Cato turned the document round and held it aloft so that all could see the imperial seal at the bottom. He waited a moment before lowering the authority, rolling it up again and placing it back in the leather tube. Then he surveyed the men before him for a moment before he began his address.

‘You know my name. You know my rank. And you may know that I have come from Rome to take up this command. But that is all you know. Some of you will have served under a number of different commanders. Most of them will have been the sons of wealthy and well-connected noble families in Rome. Some of your commanders may have worked their way up the ranks. I come from the second tradition. I joined the Second Legion while it was stationed on the Rhine. That is where I fought my first battle, against German tribesmen. After that, the legion joined the army being formed to invade Britannia. I was there at the landing, and at every battle before Caratacus was defeated before his capital at Camulodunum. Since then I have fought the Durotriges, the Druids of the Dark Moon and many other enemies of Rome.