‘Yes, sir.’ Somerset nodded, and Arthur saw that his face was quite drained of colour. ‘It is my first real battle,’ Somerset admitted. I had thought that the fight at Roliça was bad enough. But this . . .’ He gestured towards the rooms lining the courtyard.

‘This is the reality of war,’ said Arthur. ‘You had best grow used to it. Or try to.’

Somerset regarded his commander closely. ‘Have you grown used to it, sir?’

For a moment Arthur was tempted to lie to make it easier for his subordinate, but then decided there was no point in hiding the truth. If Somerset lived long enough he was certain to see far worse than the battlefield at Vimeiro. He shook his head. ‘I have never lost a battle, Somerset, yet every victory has left a sour taste in my mouth when I contemplate the price that has been paid. Perhaps it is a good thing that war is so terrible. It would be dangerous if men got used to it.’ He reflected for an instant before continuing. ‘That is the real evil we are fighting. It is not France, nor the soldiers that are sent against us. It is the taste for war that Bonaparte and his followers have acquired. That is what we must defeat.’

‘Yes, sir.’

‘See to these men as best you can. I must report to Burrard.’

They exchanged a salute and Somerset strode off to find the officers of the supply commissariat and ensure they provided adequate food and water for the injured. Arthur waited a moment, drinking in the sweet smell of the herbs that grew in the flower beds running along the walls of the monastery. Then he sighed and made his way outside to where his mount was tethered. Unhitching the reins and climbing into the saddle, he turned the horse towards the cluster of tents on the crest of the hill and dug his spurs in.

As he dismounted and handed the reins to an orderly, Arthur heard a burst of laughter from inside the army commander’s tent. The sentries on either side of the open flaps presented arms as Arthur passed through. The shade inside was welcome, as was the faint breeze that entered through the panels that had been removed on two sides. A group of officers stood about the large campaign table that dominated the centre of the tent.

‘Ah, Wellesley!’ A voice boomed from behind the table and Arthur saw that Sir Hew Dalrymple had arrived to take command. The third commander in less than a day, Arthur reflected wryly. Like Burrard, Dalrymple was a man with meagre experience of campaigning. Arthur saluted as he strode up to the table and then leaned across to shake his superior’s hand.

Dalrymple pretended to look offended as he continued, ‘It seems that you have done my job for me. Couldn’t wait, eh?’

‘I was attacked by Junot, sir. I did not seek to pre-empt your involvement.’