‘Not my place, sir.’ Ferox did not know that Hadrian was called the ‘little Greek’, although it did not surprise him. As far as he could tell, senators were as catty about each other as any group of fashionable young women.

‘Is it not? I do wonder what your place – or mine for that matter – is, given our circumstances. Well, it does not much matter. If somehow we can cling on here for a few days – I see no prospect of as many as six, but that is beside the point. We should not have lasted this long and Hadrian is a rational man, so he will surely expect us to be dead.’

‘He probably does not know that you are here, lord.’

‘Might be best that way. But he will balance the odds and judge that even the most heroic garrison must be dead by now. Which means that he will not hurry, and even if he is able to defeat the enemy army, he may not come to our aid in time.’ Piso paused, leaning forward on the table. ‘We need to send a message to him, so that he knows that we hold out and will hurry. He will not be able to resist the glory of saving the last remnant of the garrison, let alone two ladies, one of them well connected.’

Ferox knew what was coming, but was not about to volunteer.

‘You are the man to go,’ Piso said.

‘Forgive me, my lord, but my place is here, trying to make sure that we are still alive if relief does come.’

‘It is an order, not a request, centurion. The time for ingenuity in defence is gone, so I am sure that I can do whatever is needed almost as well as you could.’ The tribune smiled at this false modesty. ‘What I cannot do is creep through the night as quietly as a wolf. Is that not what they call your folk, the wolf people?’

‘I am always told that my people are the Romans, my lord.’

‘Don’t be obtuse. You are one of the Silures and they take pride in fighting at night. Don’t look so surprised. Even a tribune can read a book now and then or listen to the tales the soldiers tell of you here. You might get out of the fort, sneak past those enemy left behind and – when the time comes – their main army to reach Hadrian or whoever is coming to our rescue. Or if not get to Dobreta and at the very least take a report of what you and all the rest of us have done here. I’d rather my family know that I have done my duty for the Senate and People – and for the emperor, not that he likes us much.’

‘But, my lord—’

‘No buts. You go or I place you under arrest.’ There was a hardness in his eyes and his right hand strayed to the bone handle of his sword. ‘I doubt that anyone would question if I ordered your execution without trial – and the odds are strongly that I won’t be alive to answer any questions they do raise. You are going, centurion, and if threats do not persuade, then think that this will give a chance to save your friends here. And your wife. If you don’t want to save her then you are a fool. So you go tonight or you die. I have no time or patience for arrest.’