'And then?'

'If I see such an attack coming, I'll get the people up on to the acropolis and we'll hold out there as long as we can.'

Julia glanced up at the gloomy mass of the hill that dominated Gortyna.' How long can you hold the acropolis?'

'For several days. We'll be safe enough from rebel attacks up there.

The problem will be the water supply and sanitation. Once the water runs low there will be thirst, and then sickness, and then we'll have to surrender.' Macro forced himself to smile and lighten his tone. 'But that's not going to happen, miss. Cato will have arrived on the scene long before then.'

'Yes, I hope so.' She took his hand and gently squeezed it.' Look after my father for me.'

'Look after him?' Macro's eyebrows rose. The idea that Senator Sempronius needed any looking after was surprising. But he could sense her anxiety well enough and nodded. 'I'll keep an eye on him.'

They reached the northern gate, a small single-arched structure with a door that would only admit a small cart, or riders in single file.

Macro halted the escort and climbed up the stairs to the platform above the gate. The duty optio saluted as he saw his superior emerge from the staircase. He had been alerted earlier that a party would be leaving the gate during the night.

'All quiet?' asked Macro.

'Yes, sir. No sign of any movement.'

'Good.'

'Sounded like quite a fight over towards the east gate.'

'Nothing to worry about,' Macro said calmly. 'Just some half-arsed attempt to rush the wall. Soon sent ' em packing.'

The optio was relieved and Macro clapped him on the back. 'You just keep your attention on the ground in front of you and let the others do their jobs.'

'Yes, sir.'

Macro glanced over the parapet. Below the gatehouse a narrow track rose up towards the hills behind the city. The dark ground was dotted with occasional black shapes of trees and bushes, but all seemed still. He turned back to the optio.' Right then, I want you to remember that I'll be coming back this way. Hopefully while it's still dark. Make sure your sentries know. I don't fancy being skewered by some dozy sod taking me for a rebel.'

'No, sir. I'll see to it.'

'Do.' Macro nodded and returned down the stairs to Julia and the escort. He took the reins of his horse and cleared his throat to address the two men on the door.' Open it up.'

They drew back the locking bar and hauled on the brass ring, and with a light grating sound the door swung inwards. Macro led his horse through the arch into the night. Julia and the others followed him out of the city. As soon as the last of them had passed through, the soldiers shut the door and rammed the locking bar home. Macro looked back at the escorts and spoke the order. 'Mount.'

As the soldiers hauled themselves up into the saddles, Macro went to help Julia. He cupped his hands together. 'Step up on that, miss.'

Once she was in the saddle and had tucked the end of her long tunic beneath each leg, she took the reins.

'Had much riding experience?' asked Macro.

She nodded. 'I used to ride when I was younger. I'm sure it will all come back to me once we get going.'

Macro nodded and then turned to mount his own horse. When he was settled in the saddle, he took a firm grip of the reins and raised his arm to attract the attention of his men. 'Forward.'

The small column trotted off along the narrow road. A hundred paces from the gate, the route began to climb towards the hills and be came a well-worn track where countless mule trains had passed by before. When they reached the crest of the first hill, Macro turned in his saddle and looked back. The city was outlined by the ring of torches and braziers flickering along the wall. More torches and lamps twinkled amid the houses and ruins and up on the acropolis.

On either side of the city sprawled the camp fires of the rebel army, and as Macro cast his experienced eye over the size of the enemy camps and quickly estimated their strength, he wondered if Cato's relief column would be strong enough to fight its way through to Gortyna, let alone launch a campaign to crush the rebels. When the real contest came, it would pitch the training and equipment of Roman legionaries and auxiliaries against overwhelming numbers and fanatical desperation. Macro could not guess at the out come of such a conflict; it was quite unlike any other he had experienced.

They continued into the hills, and Macro's senses were finely strained as he kept glancing ahead and from side to side, all the time listening for any sound that might alert his suspicion. They had travelled perhaps five miles when he detected the first hint of dawn to the east; a faint luminosity in the night sky that outlined the mountains more clearly. The track had merged with a dried-out river bed. Steep rocky slopes rose on either side. Macro raised his hand. 'Halt.'

The others reined in as Macro turned his horse round and nodded to Julia. 'We've come a fair distance from the city. I doubt there will be any rebel patrols this far into the hills. There's nothing for them to scavenge up here. Good luck, miss.'

'Thank you, Macro,' she replied quietly and glanced towards the horizon. 'You should have turned back before now. It'll be light long before you return to Gortyna.'

'I'll be all right. It'll take them a while to get over the kicking we gave themearlier.'

'I hope so.'

There was a brief silence as they looked at each other, then Julia leaned across to kiss him on the cheek. 'Take care, Macro. Give my love to Cato when he reaches Gortyna.'

'I will.' Macro was still flushing from the embarrassment of being kissed in front of the escorts. 'He'll be glad that you're somewhere safe. As soon as it's all over, he'll come and find you.'

She nodded, and then Macro nudged his heels in and moved on towards the optio leading the escort. 'You clear about your orders?'

'Yes, sir.' The optio went on to intone his instructions. 'We make for Cnossos, and if the rebels come north we take a ship to Athens, where the senator's daughter is to be placed in the care of the governor.'

'Very good. Now you'd better get moving.'

They exchanged a salute, and Macro spurred his horse into a trot as he rode down the column. The optio gave the order to advance and Macro heard the horses' hooves clop forward again, but he did not look back. Julia was safe, and he was needed back in Gortyna. In truth he should have remained there, but the senator had insisted on his seeing his daughter on her way. Even though he resented the order, Macro realised that it would help put Sempronius at his ease, and the senator could ill afford any distractions now that Ajax and his rebel horde were camped before the walls of the province's capital.

He continued back down the river bed and up on to the track as it turned sharply round a large rock, passed through a small forest and began to descend. The air was cold and he breathed in the sharp scent of the pine trees as he calmly contemplated the danger he was riding back into. As soon as Ajax had got over the failure of his initial assault, he would be quick to realise that his best chance lay in stretching the defenders' resources. A co-ordinated series of attacks on the most damaged sections of the wall was bound to be rewarded, with a breakthrough somewhere. One breach was all that the rebels would need; then they would flood into the city and massacre anyone who failed to reach the acropolis in time.

Macro was so intent on his thoughts of the coming siege that he heard the enemy scouts before he saw them. There was a sudden shout and he reined in abruptly and stared about in a moment of panic. The path was traversing the side of a hill and the trees fell away sharply to his left. A short distance ahead, the track bent round and zigzagged down the hillside. Two hundred paces below, Macro saw a large party of horsemen, perhaps as many as fifty of them, riding along the track, dressed in dull brown and grey tunics and cloaks.