The imperial aide folded his hands behind his back and walked the width of the central aisle, his gait slow and methodical, as if pacing out the perimeter of a building. The sound of his sandals against the floor echoed throughout the hall.

‘Happily, Fortuna smiles on us.’

Macro clicked his tongue. ‘Hard to believe.’

A flicker of a smile crossed Murena’s face before he continued. ‘It appears we have a ready-made candidate. A young man with military experience who was instructed by a gladiator as a boy. A man who, I am reliably informed, demonstrates utter fearlessness when facing raw steel. A rare quality, as I’m sure a man of violence such as yourself will appreciate. With the right guidance, he could be just the ticket.’

‘A soldier, eh?’ Macro said. ‘What’s the lad’s name?’

Murena looked down. ‘Marcus Valerius Pavo.’ He pulled a face at his sandal, as if he had trodden in a puddle of sewage. ‘Although you may well be more familiar with his father’s name, Titus?’

Macro felt his guts tie themselves into a knot. ‘The Legate of the Fifth Legion?’

‘Formerly, the Legate,’ Murena corrected icily. ‘Latterly, rotting in an unmarked grave on the Appian Way. The predictable consequence of Titus trying to return Rome to a republic. We’re still debating whether to decimate the Fifth, since his men appeared so eager to support him in his treachery.’

A cold shiver crawled down Macro’s spine. News of the execution of the Fifth’s legate had not yet reached the Rhine, but the more the officer heard about how the imperial palace now dealt with its enemies, the less he liked the sound of it. Bashing up barbarians in Germany and Gaul was all well and good, but the thought of Romans stabbing each other in the back reminded him of the civil wars that had dogged Rome during the days of the Republic.

‘Dissent in the ranks cannot be tolerated,’ Murena said, as if reading Macro’s mind. ‘We had to set an example.’

‘But you let the son live?’

‘He wasn’t in Rome at the time. Pavo was a military tribune in the Sixth Legion. We had him placed under arrest and returned to Rome. The Emperor had planned to execute the young man in the arena, and to that end we slung him into a gladiator school in Paestum. The lanista has promised to see to it that Pavo dies in the arena within the year.’

Macro curled up his lips in thought. ‘And now you want Pavo to save the honour of Rome?’

‘These are desperate times. With Hermes out of the picture, we need Pavo. At least for the time being. Training him, however, may not be so straightforward. The young man is rather upset about the whole business of his father being killed.’

‘How did he die?’ Macro asked cautiously.