Marcin, inferior as was his command, gripped the opportunity, sent cavalry at once to Oberglauheim, and that cavalry charged. But here the greatness of Marlborough as a personal commander suddenly appeared. He seized the whole character of the moment in a way that Tallard on his first chance had wholly failed to do. He put himself in person at the head of the Danish brigade that lay in reserve, brought it across the rivulet, and came just in time to take the charge of the French cavalry. Even as that charge was preparing, Marlborough sent to Eugene for cavalry at the gallop. He (Marlborough) must hold fast with his Danes against the French horse--five minutes, ten, fifteen at the most--till help should come from the right. Here, again, another factor in the success of the day appeared--that Eugene and Marlborough understood each other. Eugene had just suffered a sharp check upon the extreme right; he was re-forming for a new attack when he got Marlborough's message. Without the loss of a moment in weighing his own immediate necessities, he sent Fugger thundering off, and Fugger, with the imperial cuirassiers, came galloping full speed upon Marlborough's right flank just as the French charge was at its hardest pressure upon the Danish line. He took that French charge in flank, broke its impetus, permitted the Danish infantry to hold their own, and so compelled the French horse to fall back; within a quarter of an hour from its inception the peril of a breach in Marlborough and Eugene's centre was thus dissolved. Here, then, is yet another incident in the battle, which shows not only on which side rapidity of perception lay, but also on which side lay sympathy between commanders, and, most important of all, the discipline and material eminence of the dominating arm. It was now nearly six o'clock, and the August sun was red and low in the face of the English General. The French line still stood intact before him. Marlborough's first great effort against Blenheim had disastrously failed all during the earlier afternoon; he had but just escaped a terrible danger, and had but barely been saved, by Eugene's promptitude in reinforcement, from seeing his line cut in two. Nevertheless, he was the master of the little daylight that remained. His cavalry, and indeed nearly all his troops, were now formed beyond the Nebel; he had the mass of his forces now all gathered opposite the weakest part of the French line. It was his business to pierce that line and to conquer.