The last cannon fired from the gunboats just as the colours of the leading battalion reached the foot of the rampart. The grenadier company immediately scrambled up the steep slope, struggling to keep moving in the shifting sand that had been piled up against the ramparts to slow the attackers down. Now that the bombardment from the gunboats had ceased the Mamelukes returned to the ramparts and renewed their fire on the French troops. But it was already too late for them, as the skirmishers in front of the ramparts raised their muskets and fired at any turbaned heads that appeared above the parapet, either side of the assault column. As Napoleon watched, the grenadiers swarmed up the slope, and then hauled themselves over the breastwork to fall on the defenders beyond. The sound of musket fire was replaced with the harsh scrape and ring of bayonets and swords and the wild cries of men fighting for their lives.

The companies following the grenadiers began to climb up and feed into the fight spreading out along the wall.As Napoleon made his way forward with the last company of the battalion the churned sand gave way beneath his boots and he was breathing hard by the time he reached the ramparts. The bodies of Mamelukes and French soldiers were sprawled on either side. A short distance ahead lay the nearest houses of the village and the Mamelukes were streaming back from the walls into the narrow alleys between the mud-plastered buildings, pursued by French soldiers wildly shouting out their cries of triumph and jeers of contempt.

Suddenly, there was a loud boom and a cannon ball cut a bloody path through the soldiers who had just entered a street right in front of Napoleon. An instant later the ball struck the inside slope of the rampart a short distance from Napoleon and Berthier, flinging sand over them. Napoleon blinked and brushed the dirt away from his face before running to peer round the corner of the street into the heart of the village, where a cloud of smoke eddied around the monstrous muzzle of a vast gun. Already the Mamelukes were busy ramming another charge down the barrel while two men approached, struggling under the burden of a huge ball. A fearsome weapon indeed, thought Napoleon, but its very size was its biggest weakness. It could cover the street, but it was far too large to be manoeuvrable.

‘You!’ Napoleon beckoned to a corporal. ‘Find your company commander. Tell him I want him to work forward down a side street and take that gun. He’s to place a man here to warn others to keep clear. Understand?’