Macro hacked again, cutting into the middle of the cobra’s body. He cut again, this time severing it. Half the coils fell back and flopped about on the ground and Macro hurriedly kicked them to one side. The other half seemed to grow even more wild and Cato hurled it as hard as he could towards the back of the tent where it hit the goatskin with a soft thud and dropped to the ground, writhing frantically, but unable to move from the spot as it bled out.

Cato’s heart was beating wildly, his chest felt cold and clammy and he trembled. He turned to Macro and saw that his friend was just as shaken. Macro licked his lips and stared at the dying snake as he spoke in a low, earnest tone. ‘I am really beginning to hate this province . . .’

‘You’re the one in charge of the watch, right?’ Macro glared at the optio as the latter quickly rose from amongst the men sitting around the fire.

‘Yes, sir.’ The young soldier nodded.

‘Then you’re responsible for this getting into our bloody tent.’ Macro shook out the tunic and the two lengths of the cobra’s body flopped on to the ground. The optio instinctively took a step back and his face wrinkled in nervous disgust. There were surprised murmurs from the other men as they craned their necks and saw the dead snake.

Macro turned and pointed towards the tent. ‘The prefect is inside. There is supposed to be a guard patrolling outside the tent to ensure nothing happens to him, right? No enemies, or other threats, get past. I mean that’s standard regulation, even here in Egypt.’

‘Yes, sir.’

‘So where is the sentry?’ Macro made a show of looking around and giving up and raising his hands. ‘Well?’

‘I’m sorry, sir.’ The optio swallowed. ‘I had a man either end of the camp. I didn’t think it would be necessary to post any more than that.’

‘Two men?’ Macro shook his head. ‘The province is in a state of war, and before you say it, I don’t care how far away the Nubians are. That’s no excuse for sloppy watch-keeping. Let me guess. You’re with the Twenty-Second Legion?’

The optio nodded.

‘Oh great . . .’ Macro took a pace closer and held his finger an inch from the optio’s face. ‘I want a proper watch posted every night. It is your duty to protect the camp and protect your officers and you have fucked up, my son. The fact is, either the prefect or myself or even both of us could have been killed and the fault would be yours.’

‘But sir. Even if there had been a sentry, the snake could have got into the tent.’