Macro stared at them and was gratified that none seemed to show any sign of fear. ‘You all know what’s coming. Caratacus means to take the fort with the next attack. The enemy’s blood is up and we can expect that they will take heavy casualties and still keep going. Once they get over the wall and establish a foothold, then the game is up for us. If it happens then it would be better to die than risk capture. Make certain your men understand that. We need to match their resolve if we are to stand any chance of surviving this. I won’t lie to you. We may hold off the first attack, but after that it’s anyone’s guess. If the fort falls, then we’re dead men. And it will fall. There’s too few of us to hold the wall. Too many of them, and no prospect of help from outside. The only choice that concerns us now is how we die: like soldiers, or like dogs.’ Macro paused and softened his tone as he turned to the fort’s surgeon. ‘I don’t want any men taken alive. If the wall is taken I’ll have the trumpeter sound five long notes. That is the signal. You and your orderlies will deal with the wounded. Understand?’

The surgeon nodded. ‘Yes, sir. I’ll see to it that it’s quick.’

‘Good man.’ Macro looked at the senior officer of the Thracian cohort. ‘The same goes for the horses. Have some of your men ready. The moment the signal is given they are to lame them. It’ll be quicker than killing them and just as effective.’

‘Why not kill them now, sir? While there’s time.’

Macro shook his head and smiled. ‘Despite everything, I never give in. Never. Even now, there may be a way out of this. I’ll not admit defeat until the end. And if that’s the fate the gods have decided for us, then and only then do we accept it. Now, lads, to your posts.’ He held out his hand and clasped forearms with each officer before they left to rejoin their men. Then, with a heavy sigh, Macro climbed back up to the tower and strapped on his helmet and waited for the enemy.

In the dying light the Silurians formed up in front of their camp, a dark mass of men and weapons set against the glow of their fires. For a time there was silence, and then a horn sounded a deep note that echoed off the surrounding hills and the tribesmen surged forward without a sound.

Macro cupped his hands to his mouth and called out to the garrison, ‘Here they come! Stand to!’