‘It does that. And it unnerves them, and it serves to remind my men of the kind of war we are fighting. That is the fate of any men who allow themselves to be taken prisoner. A lesson I think even you two must learn. The sooner the better.’ He glowered at Macro. ‘Even so, there are some enemy warriors made of sterner stuff who we have to look out for.’

He spurred his mount forward, breaking into a canter as he rode ahead of the column towards the scouts, some distance ahead. Cato and Macro watched him recede, his cloak flapping around his body like a swirl of crows.

Cato glanced round. The Thracians returned his gaze steadfastly, as if not caring that they were under scrutiny from the new prefect in charge of the fort at Bruccium. Many of them bore tattoos on their faces, dark swirling patterns, unlike the ornate blue patterns favoured by the Britons. Their cloaks and tunics were heavily worn and stained and their equipment was a mixture of that issued to auxiliary troops, captured Silurian weapons and some examples of more exotic design that Cato guessed came from their native Thrace.

At the rear of the column Decimus was riding by the edge of the track where he could stay in sight of Cato and Macro and be reassured. Behind him, tied to the saddle horn of one of the other mules, was the prisoner, a look of acute misery etched on his face. Cato turned back to his companion and spoke quietly.

‘What are you thinking, Macro?’

His friend replied in hushed tones. ‘Centurion Quertus is not taking it well.’

‘I’ll say.’

Macro gestured discreetly in the direction of the men riding behind them. ‘And I’ve never seen such a rabble before, even amongst some of the sorriest-looking auxiliary units in the army. They look like barbarians. It’s hard to tell this lot apart from the natives.’

Cato nodded. ‘Perhaps that’s the intention. That, or Quertus is going one step further and making his men seem even more frightening than the Silurians.’

‘They don’t frighten me,’ Macro said firmly.

‘Not much does, I’m glad to say.’

Macro smiled at the compliment and then his expression hardened again. ‘Even so, I don’t like the situation. We’ll have to watch Quertus closely. He’s probably already thinking about how he can dispose of us without drawing too much attention from headquarters.’

‘My thoughts exactly,’ said Cato. ‘And while he continues to strike fear into the hearts of the local tribes the legate is going to want to keep him at it. We shall have to watch our step.’

Macro nodded. ‘Something else worries me. If this lot are typical of the men at the fort, what else are we going to have to deal with? They’re not going to take kindly to a bit of spit and polish and some square-bashing.’

‘No.’