There was a dull roar from the far side of the stream and Napoleon turned to see a puff of smoke swirling in front of one of the guns of the Austrian battery. Shortly afterwards a divot of grass and stone was thrown into the air a short distance in front of the foremost of Cervoni’s line companies.

‘I’m afraid that’s about to change,’ Napoleon said quietly. ‘You must hold this ridge as long as possible. The Austrians must not reach the coast road. Augereau’s division is moving forward to attack the Austrian column, and Masséna is marching round to the east.’ Napoleon gestured to the hills on his right. ‘But they won’t come up for two or three hours. You have to hold this position until then. Whatever the cost.’

Cervoni nodded. ‘I understand, sir.’

Napoleon looked over the ground below him.‘Where are your guns? You’re supposed to have two six-pounders attached to your brigade.’

‘There, sir.’ Cervoni smiled as he indicated a thicket of reeds a hundred and fifty yards from the bridge. When Napoleon squinted he could just make out the crews crouched round two dark shapes. Cervoni explained. ‘I had them smear the guns in mud so they wouldn’t show.They have orders not to fire until the head of the column is on our side of the bridge.’

Napoleon nodded approvingly.‘That’ll be a nasty surprise.You can return to your battle, Cervoni. I’ll watch from here for a while.’

‘Yes, sir.’

They exchanged a salute and Cervoni wheeled his horse round and trotted back to his small cluster of staff officers. Now the Austrian guns had found their range and a well-aimed shot ploughed a bloody furrow through the centre of the nearest company. More solid shot followed and several men were swept away before the order to take cover reached them. The enemy gunners reloaded with grapeshot and trained the guns on the skirmishers covering the bridge. Then the Austrian drums beat the advance and the light company peeled aside to let the main column approach the bridge.They came on at a steady, measured pace, up to the parapet and tramping over the slight hump in the middle of the bridge. They were led by a slender officer who rested his sword on his shoulder as he led his men towards the near bank of the stream.