Just then, the first of the riflemen opened fire on the French column, and the crackle of rifles spread along the slope. Several of the enemy were quickly struck down, and the others began to break ranks to look for cover. Their officers struggled to rally them and re-form their ranks ready to return fire at the Ninety-fifth. Just as they had been trained to, the riflemen targeted the officers and one by one they were cut down as they gave their orders. The survivors ordered their troops to fire a volley where they they could see the puffs of smoke, but the riflemen had plenty of time to take cover and the storm of musket balls tore up the stunted bushes and glanced off rocks and not one of the greenjackets was hit. As soon as the French lowered their muskets and began to reload they were steadily whittled down, falling in twos and threes, until, unable to bear the massacre any longer, the survivors broke and ran, streaming along the road towards the village. The riflemen continued to fire on the fugitives as quickly as they could reload and take aim, and soon the road was littered with dead and wounded men and a number of horses, shot in their traces, forcing the drivers to abandon their wagons.

‘Glorious work!’ Alten rubbed his hands together in glee. ‘And now for the coup de grâce. Look there, sir!’

Ahead of the fugitives the men of the Fifty-second were crossing the road. They halted, and turned smartly towards the French. Up went the muskets and then a wall of darting flames and plumes of smoke briefly hid the redcoats. The volley cut down scores of the enemy, and the rest turned back, running into their companions and causing further chaos. Another volley crashed out, and the riflemen kept up their firing from the slope. Hundreds of bodies carpeted the road now, and blocked from two sides the French tried to flee back the way they had come, only to find a line of Portuguese troops filing down from the hill to close the trap.

Some of the French threw down their muskets and raised their arms in surrender, but others, with more heart, or fearing capture, turned and ran in the only open direction, clambering up the slope of the next ridge. The riflemen ceased fire and hurried down the slope and across the road, ignoring those who were surrendering, and then knelt at the bottom of the next ridge and started shooting down the Frenchmen toiling up the slope above them.

Within the space of ten minutes the brigade had been destroyed, suffering hundreds of dead and wounded, and leaving over four hundred prisoners. It had been a massacre, Arthur decided, but all the same he took pride in the effective performance of Alten’s men.

‘A finely executed ambush, General Alten. Ensure that you pass my congratulations on to your men.’

‘Yes, sir. I will.’