wound. He wants to see you dead. But he would like to see you humiliated first. I agree with Maximus that he could be behind the fire – but not that he would go over to the Persians. What is the point in being an Acilius Glabrio if you are not in Rome? Possibly he wants to hamstring your defence of this town. Then, when you have been exposed as a stupid blundering barbarian – sorry, Dominus – he steps in to save the day.'
'It could be,' said Ballista. 'But I can think of about forty thousand other potential traitors – the whole population of this town. Let's be honest, they have little reason to love us.'
'If the traitor is a townsman, we need only look to the rich,' said Mamurra. 'The fire was started with naptha. It is expensive. Only the rich here in Arete could afford it. If the traitor is a townsman, he is on the boule, the council.'
Ballista nodded slowly. He had not thought of that, but it was true.
'And who are more important on the council than the caravan protectors?' Maximus interrupted. 'And all three of them have links to the Sassanid empire. And now all three of them are entrusted with defending the walls. We are all completely fucked, fucked beyond belief!'
The blond girl came over with more drinks. Her smile became more fixed than ever as Maximus pulled her on to his lap.
'So,' said Ballista, turning his gaze to Mamurra, 'a rogue officer or an alienated councillor – we don't know which.'
'But we know that it has only just begun,' Mamurra added.
'If it were you, what would you do next?' Ballista's question hung for some time as Mamurra thought. With an ease born of practice the blond girl giggled like she meant it and parted her thighs to admit Maximus's hand.
'I would poison the cisterns,' Mamurra finally replied. There was a long pause. In the background the girl giggled again. 'I would contaminate the food stocks… sabotage the artillery.' Mamurra was speeding up. 'I would make sure I had a way of communicating with the Sassanids, then one dark night I would open a gate or throw a rope over an unguarded stretch of wall.' The girl sighed. 'Oh, and there is one other thing that I would do.'
'What?' said Ballista.
'I would kill you.' Obsessio (Spring-Autumn AD256)
XII
''Beware the ides of March.'' The telones shook his head sadly as he watched the cavalcade pass. 'Calpurnia turned in her sleep and muttered… beware the ides of March.''
After the last horseman had jingled out from under the tall arch of the western gate, there was an unnatural silence, as if everything were holding its breath.
'What the fuck are you on about?' The boukolos often sounded put out when confronted by things outside his limited experience.
'That is poetry that is. That old centurion, the one who was always drunk, always quoting that he was… you know the one, the Sassanids got him somewhere downriver, cut his balls off, and his cock- shoved them down his throat.' The telones shook his head again. 'Poor bastard. Anyway, today is the ides of March. The day Julius Caesar was murdered by some of his friends. Not a good day to start out on something, not what you would call a day of good omen.'
Just beyond the Palmyrene Gate Ballista had halted his small mounted force to reorder for the march. Two equites singulares were put on point duty in front, and one at each side and the rear. The northerner did not intend to be surprised if he could help it. Ballista would lead the main body with Maximus, Romulus and Demetrius. The two scribes and two messengers would ride next, then the five servants leading the five packhorses. The other five equites singulares would form the end of the column. Ordered like a miniature army, scouts out and baggage in the middle, the force was as ready as it could be for any trouble-not that trouble was expected.
This was a straightforward tour of inspection. The small fort of Castellum Arabum, garrison to twenty camel- riding dromedarii from Cohors XX, lay to the south-east, some thirty miles as the crow flies, some forty-five by road. Castellum Arabum was now the furthest south of Rome's possessions on the Euphrates. It was the tripwire that was intended to warn of the coming of the Sassanids. No enemy had yet been seen. Local experts assured Ballista that it took time for the Sassanids to assemble their forces in the spring; they would not come until April, when there was grass for their horses and no danger of rain ruining their bowstrings. No hostile encounters were expected on this trip: two days' easy ride down, a day to look at the defences and make a speech to hearten the dromedarii, and two easy days' ride back.
As the men on point duty rode off to take up their positions, Ballista looked back at Arete. Bricklayers still plied their methodical trade, facing the earth, rubble and layers of reeds that formed its core but the great glacis that fronted the western wall was in essence complete. The 500 paces that separated Ballista from it was now a wasteland. Scattered low piles of broken bricks and smashed stones were all that remained of the once proud tower tombs of the necropolis.
Looking at the wasteland he had created, Ballista wondered what he should feel. A good Roman would probably be meditating on something like the immutability of fate. To his surprise, Ballista's main feeling, rather than pity or guilt, was one of pride: I, Ballista son of Isangrim, did this – look on my works and tremble. He smiled to himself. Everyone knows we barbarians enjoy destruction for its own sake. And maybe not just us. He half- remembered a line from the AgricoLa of Tacitus: 'Rome creates a desert and calls it peace.' Tacitus had put the words into the mouth of a Caledonian chief called Calgacus. Isangrim's sense of humour had not deserted him all those years ago when naming the Caledonian slave who would look after his son.
The point men were in position. Ballista signalled the advance. The small column set off at a walk towards the south. The cool of the night was giving way before the early morning sun. Only down in the ravines and on the surface of the river was the mist still clinging. Soon it would be hot – or hot by northern standards.
The road was unpaved but, created by millennia of caravans, it was mainly broad and easy to follow. For the most part it kept on the plateau away from the river. Sometimes it even diverted quite some distance inland to go round the ravines that ran down to the Euphrates; at others it descended into these wadis, sometimes climbing straight out the other side, sometimes following the floodplain until the gradient allowed it to climb back to the plateau.
Down by the river they stopped for lunch in the shade of a grove of wild date palms. It was peaceful in the dappled sunlight, listening to the river slip by. Ballista had ordered that the scouts remain on the look-out above them on the plateau. After he had eaten the cold pheasant, bread and cheese that Calgacus had packed for him, he lay back and closed his eyes.
It was good to be out in the country, slightly stiff and tired after a morning in the saddle. It was good to be away from the endless interruptions and irritations of organizing the defence of Arete. Sunlight coming through the palm fronds made shifting patterns on his eyelids. The south wind was getting up; he could hear it moving through the stands of tamarisk. But even in this almost idyllic setting his mind would not rest. Castellum Arabum had a garrison of twenty. It was too few to mount a defence, and more than was needed for a look-out post. He had inherited this arrangement from the previous Dux Ripae. So far he had not found time to visit Castellum Arabum. Now, maybe it was too late to start altering things.
Ballista sat up and looked around at his men. They should start moving. Again it struck him how easy it was to slip into other people's ways of doing things. Twenty-three men and twenty-eight horses just to transport him to look at a small fort less than fifty miles away. Like the garrison of Castellum Arabum, the column was the wrong size. It was too small to fight off any determined Sassanid war party and too large to move quickly. The size of Ballista's entourage, somehow without any intention on his side, had expanded to fit Roman expectations. A Dux on the move needed scribes, messengers, guards. It was lucky he had not found himself saddled with a masseur, pastry cook and a hairy Greek philosopher as well. Ballista felt he should have ridden down to Castellum Arabum with just Maximus and Demetrius. Moving fast, they could have kept away from any trouble. It would be a foolish tent-dweller who decided to try to rob Maximus.
The tethered horses had eaten their hay and were either sleeping or desultorily searching the ground for anything edible. The sun was hot but in the shade of the stand of trees it was still cool. The men were resting or lying down talking quietly; there was all the time in the world. Ballista lay back down and shut his eyes. A sudden
