He nodded wearily. ‘Very well. Have their applications approved in my name. Then send a memo to the War Office to notify them of the relevant vacancies in our ranks.’

‘Yes, sir.’ Somerset continued working through the morning’s paperwork and then paused as he came across a small, neatly addressed bundle of letters. He cleared his throat and held the bundle up. ‘Correspondence from Lady Wellesley, sir.’

Arthur glanced up briefly. ‘Put it with the rest. I’ll attend to it when I have the time.’

Somerset was still for an instant, as if considering adding some further comment, and then put the bundle in the wooden tray reserved for low priority papers. Arthur felt a flicker of irritation at the imputed reproach of his aide. After all, he had an army to command, with all the duties that came with the post. His wife was back in London in a comfortable house, surrounded by servants. Yet Kitty contrived to drag him into making decisions about the pettiest issues of domestic management. While he found her news of friends, family and society mildly diverting, his heart began to sink when Kitty turned to the more substantial issues that consumed her thoughts: how to end the service of a difficult or incompetent maid, or whether to redecorate a room, or her latest choice of school for their sons, even though they were little more than infants. Despite his polite efforts to encourage her to take charge of the family’s affairs whilst he was away on campaign, thus far she had proved to have little faith in her ability to do so. Privately, it infuriated Arthur, just as it did when one of his officers failed to show the initiative required of his rank and responsibilities. It occurred to him that a wife and a subordinate might not be quite the same thing, but he dismissed the notion. A wife had duties, just the same as a man, and should be measured by how well she carried them out.

Marrying Kitty had been a mistake, he accepted. Nevertheless, the deed was done, though for all the wrong reasons save one: that he had given his word that he would marry her before he set off for India. She had waited for his return and so Arthur had dutifully married her, though her looks and youthful charms had long since faded. Now, if he were honest, he was glad to be away from her.

As he shook thoughts of Kitty aside, Arthur spied a movement on the far side of the river. A small convoy of wagons was snaking through the olive trees down towards the bridge that crossed the Tagus. A thin gauze of dust hung about the wagons as they rattled along the crude roadway. Two squadrons of cavalry escorted the convoy, one at its head and the other guarding the rear.

‘Somerset.’

‘Sir?’

‘See those wagons down there, on the far bank, approaching the bridge?’

Somerset looked in the direction indicated. ‘Yes, sir.’