Cato was more tired than he had ever been in his life. Every sinew in his body cried out for rest. His eyelids were almost too heavy to keep open and the cold was no longer the numbing distraction it had been earlier in the day. Now it fuelled the desire to slip into a deep, warm sleep. Insiduously, his mind entertained the idea and slowly drained the resolve that strove against the demand of every aching muscle for rest. He withdrew his attention from the world around him, away from watching the ranks of legionaries and the danger of the enemy lurking invisibly beyond. The monotonous pace of the advance aided the process and at length he succumbed to the desire to shut his eyes, just for a moment, just to take away the awful stinging sensation for a moment. He blinked them open to make sure of his bearings, and then they closed again, almost of their own will. Slowly his chin dipped towards his chest…

‘On your fucking feet!’

Cato’s eyes snapped open, his body filled with the chilling tremor that comes with being forcibly wrenched from sleep. Someone held his arm in a tight, painful grip.

‘What?’

‘You were falling asleep,’ Macro whispered, not wanting his men to overhear. He dragged Cato forward. ‘Nearly fell on top of me. Happens again and I’ll cut your balls off. Now, stay awake.’

‘Yes, sir.’

Cato shook his head, reached down for a handful of snow and wiped it across his face, welcoming the restorative effect of its icy sting. He fell into place alongside his centurion, feeling ashamed of his physical weakness. Even though he was at the end of his endurance he must not show it, not in front of the men. Never again, he promised himself. Cato forced himself to keep his attention focused on the men as the cohort continued to trudge forward. More regularly than before he moved up and down the dark lines of his men, snapping out orders to those who showed any sign of lagging.

Several hours into the night, Cato became aware that the vale was narrowing. The dark slopes on either side, only fractionally darker than the sky above, began to rise more steeply.

‘What’s that ahead?’ Macro suddenly asked. ‘There. Your eyes are better than mine. What do you reckon?’

Across the snow stretching out in front of the cohort an indistinct line extended across the vale. There was some movement there, and as Cato strained his eyes to try and make out more detail, a low whirring sound filled the freezing night air.

‘Shields up!’

Cato’s warning came moments before the slingshot came whipping out of the darkness and struck the cohort with a splintering clatter. The aim was understandably poor and much of the volley passed over the legionaries or struck the ground short of the target. Even so, a number of cries and a scream sounded above the din.