Meanwhile Marlborough with the Hanoverian and Dutch infantry was pressing forward slowly on his left, the French fighting with great stubbornness and gallantry, and contesting every inch of ground from hedge to hedge. At last the enemy, being forced back to Diepenbeck, a few hundred yards in rear of Schaerken, stood fast, and refused, despite all the Duke’s efforts, to give way another foot. But Marlborough had still twenty battalions of Dutch and Danes with almost the entire cavalry of the left at his disposal, and he had noticed that the French right flank rested on the air. He now directed Marshal Overkirk to lead these troops under cover of the Boser Couter round the French right and to fall with them upon the enemy’s rear. The gallant old Dutchman, though infirm and sick unto death, joyfully obeyed. Two brigades were thrown at once on the flank of the troops that were so stoutly opposing Marlborough; while the cavalry advanced quickly on the reverse slope of the Boser Couter,[46] and then wheeling to the right, fell on the rear of the unsuspecting French. A part of the Household Cavalry and some squadrons of dragoons tried bravely to stand their ground, but they were borne back and swept away. Overkirk’s troops pressed rapidly on; and the French right was fairly surrounded on all sides. Now at last an effort was made to bring forward the French left, which, through Burgundy’s perversity or for some inscrutable reason, had been left motionless on the other side of the Norken; but it was too late. The infantry, though led by Vendôme himself, failed to make the slightest impression, and the cavalry dared not advance. The ground before them was intricate and swampy, and the whole of the British cavalry, withdrawn from their first position by Eugene, stood waiting to plunge down upon them directly they should move. The daylight faded and the night came on, but the musketry flashed out incessantly in an ever-narrowing girdle of fire, as the Allies wound themselves closer and closer round the enveloped French right. At length at nine o’clock Marlborough and Eugene, fearful lest their own troops should engage each other in the darkness, with some difficulty enforced the order to halt and cease firing. Vast numbers of the French seized the moment to escape, but presently all the drums of the Allies began with one accord to beat the French retreat, while the Huguenot officers shouted “À moi, Picardie! À moi, Roussillon!” to gather the relics of the scattered regiments of the enemy around them. In this way some thousands of prisoners were gleaned, though the harvest which would have been reaped in another hour of daylight was lost. In the French army all was confusion. Vendôme tried in vain to keep the troops together till the morning, but Burgundy gave the word for retreat; and the whole mass ran off in disorder towards Ghent.