Karim stared at them for a moment. ‘Let us hope they show more discipline when the time comes to face the enemy.’

‘That test comes tonight,’ said Ajax. He turned and stared towards the Nile. The distant outline of a small fort and signal tower was visible on a mound a little over two miles away. There had been no sign that the garrison had spotted Ajax and his column as they had approached from the west, out of the desert. On the far bank, a short distance downriver, the Roman army would still be ignorant of their presence, and even when the alarm was sounded, it would be some hours before they could land a strong force on this side of the Nile. Ajax smiled. His spy inside the Roman camp had already proved his worth. Ajax had details of the strength of the Roman army and, even better, information about its senior officers. It was good to know that the two Roman officers he hated with all his heart were close at hand. He had only made one demand of his Nubian ally, that if Macro and Cato were taken alive, they would be delivered into his hands. Ajax resolved to have them crucified - just as they had crucified his father. The prospect filled his heart with satisfaction. He indulged the feeling for a moment before pushing the thought from his mind. Thoughts of revenge must give way to the need for swift action, Ajax reminded himself.

‘Karim, I will leave you with three hundred men. I want you to complete the fortification of the temple, and post some patrols out towards the river.’ He pointed to a small village that was within long arrow shot of the temple. ‘Destroy that, once you have searched it for any food.’

The Parthian nodded.

‘You have your orders. I should be back with the other men some time after the third or fourth hour of the night. Be sure that your sentries and the patrols know that. I would not be killed by an arrow shot by my own men.’

‘That would be regrettable,’ Karim replied, deadpan.

Ajax laughed and slapped him on the arm. ‘Until later, my friend.’