His officers nodded.

‘Then you had best retire for the night and get what sleep you can. That’s going to be something of a luxury in the days ahead. Dismissed.’

The officers saluted and filed out of the room into the darkness. Macro saw that the small garrison was under arms and spread out along the palisade. The optio must have spoken to some of the governor’s bodyguards and heard what had taken place in the sacred ring. He was taking no chances and had ordered his men to keep watch through the night. The legionaries of the bodyguard had settled round the garrison’s cooking fire and were warming themselves as they muttered in low, anxious tones about what they had witnessed. To one side Decimus was carefully bathing the wounds of Marcellus. The tribune had stripped to his loincloth and was carefully spooning gruel into his mouth and making a gurgling noise as he struggled to swallow. As he ate, the servant washed the grime from his pitifully emaciated body, revealing the bruises and cuts that told of the brutal treatment the tribune had been subjected to.

‘What will become of that poor sod?’ Macro wondered.

‘I am sure he has family in Rome. They will care for him, as best they can.’

Macro stared a moment longer. ‘It would have been kinder to kill him. Fucking barbarians. No better than animals.’

‘Maybe, but they’re clever. Everyone who sees Marcellus on his journey home is going to learn what happens to those soldiers captured by the enemy and it’s going to shake them. Even more so back in Rome, far from the battlefield. A mutilated young aristocrat is going to be something of a talking point. It may add weight to the words of those arguing that we should not expand our territory in Britannia, and even abandon the province altogether. Caratacus knows how to make his point eloquently, and ensure that it is rammed home as deeply as possible. Killing Marcellus would have been a wasted opportunity.’

Macro stared at his friend. ‘By the gods, you’re as cold-hearted as he is.’

‘No, I just understand the thinking behind his deeds. My only worry is that Ostorius may be playing into the enemy’s hands. If he brings fire and sword to the mountain tribes, he may turn some of the others against us. There’s a wider problem too. If our men get used to treating the natives harshly, it’s going to be hard to rein them in when they are redeployed after the campaign. That’s assuming we manage to hunt down Caratacus and force him to turn and fight.’

‘I was under the impression that he was spoiling for a fight,’ Macro replied. ‘He made a bloody great song and dance about defeating Marcellus’s column, and how it was only the beginning.’

‘Yes, he did. So perhaps that’s the impression he is keen to give us.’

Macro sighed irritably. ‘And what exactly do you think he intends, then?’

‘I’m not certain. If we strike deep into the mountains looking for his army, or his main stronghold, then we’ll be stretching our lines of communication, and leaving them vulnerable to raids. Looks to me like he’s reverting to his old tactics. Luring us on, only to strike at our rear. He’s certainly succeeded in goading Ostorius.’