Arthur ignored them as they ran past his position. A moment later the last of the gun crews in front of the oncoming columns discharged their cannon and trotted back to safety through the gaps between the regiments of Picton’s division.

Somerset had passed the orders on to Uxbridge and came galloping back to his commander’s side. ‘Your grace! You must move back; the French are almost upon us.’

Arthur nodded and turned Copenhagen away, and the two riders trotted towards the rear of Picton’s division. A hundred yards away Picton spied his commander and raised his top hat in greeting before turning his attention to his men and bellowing an order to his Highlanders. ‘The Ninety-second will advance! All in front of you have given way. Be brave, my boys! Forward!’ He drew his sword and waved it above his head.

The leading ranks of the French columns had reached the hedge and now some of the battalions halted to fire, while others pressed through the hedge and halted a short distance the other side. Arthur could not help holding his breath as the French muskets came up and a voice called out, ‘Tirez!’

Flashes lit up the line and the volley tore through the Highlanders running forward to engage the enemy. As scores of kilted figures tumbled down, the line staggered and almost came to a halt. Picton spurred his horse forward and called to his officers. ‘Rally! Rally the Highlanders!’

At that moment his head snapped backwards. His fingers spasmed and the blade fell to the ground. As the horse trotted on, Picton slumped to one side and fell from his saddle, rolled across the trampled grass and lay still.

‘Good God,’ Arthur muttered. ‘Poor Picton.’

A groan passed through the ranks as they became aware of their commander’s death, and then the Highlanders let out an angry roar and plunged towards the waiting French. It was a valiant charge, but Arthur knew that the weight of numbers was on the enemy’s side and that Picton’s men could not hold the centre of the allied line unaided.