At length, the Khalifa moved off with all his force behind the western hills, and for a short time there was a lull in the battle. Many of the wounded tribesmen crawled up to within seven or eight hundred yards of the zareba, and there opened fire. Their aim was good, and men began to drop fast, in spite of the volleys fired to clear off the troublesome foe. But their fire was soon disregarded for, from the ravines in the range of low hills, behind which the Khalifa's force had disappeared, a mass of men burst out at a hard run. From their shelter behind Surgham Hill, a portion of the force who were there also swept down to join the Khalifa, while Yacoub advanced from the southwest, and another body from the west.
Instantly the infantry and artillery fire broke out again. On the previous day, the distance had been measured and marked on several conspicuous objects; and the storm of shells tore the ranks of the enemy, and the rifles swept them with a rain of bullets. But, in face of all this, the Dervishes continued to advance at a run, their numbers thinning every minute.
Two or three hundred horsemen, with their emirs, dashed at the zareba at full gallop. Shrapnel, Maxim and rifle bullets swept their ranks, but nearer and nearer they came, with lessening numbers every yard, until the last of them fell within about two hundred yards of Maxwell's line. Animated by the example, the infantry rushed forward. The black flag was planted within nine hundred yards of Maxwell's left; but, in addition to the Egyptian fire, the crossfire of the British divisions poured upon those around it.
The main body began to waver, but the Khalifa and his emirs did their best to encourage and rally them. The flag was riddled with balls, and the men who held it were shot down; but others seized the post of honour, until a pile of bodies accumulated round it.
At last, but one man remained standing there. For a minute he stood quietly immovable, then fell forward dead. Then the Dervishes lost heart, and began to fall back in ones and twos, then in dozens, until the last had disappeared behind the hills.
The troops then turned their attention to the men who, lying in shelter, were still maintaining their fire. There were fully a thousand of these, and the greater portion of our casualties took place from their fire, while the troops were occupied in repelling the main attack. It was not long, however, before bullets and shell proved too much for them; and those who survived crawled away, to join their kinsmen behind the hills.
It was eight o'clock now, and the victory had apparently been won. Some ten thousand of the Khalifa's best troops had been killed or wounded. In the British division, one officer and one man had been killed, and three officers and sixty-five men wounded. The latter were at once placed on board the hospital barges. Fresh ammunition was served out and, half an hour after the last shot was fired, the army prepared to march on Omdurman.
It was most important that they should arrive at the town before Ed Din's Dervishes should reach it; for unless they could do so, the loss that would be incurred in capturing it would be vastly greater than that which had been suffered in the battle. At nine o'clock the start was made. The troops advanced in brigades. Lyttleton led on the left, Wauchope was on his right, Maxwell somewhat in the rear, while still more to the right came Lewis, and farther out on the plain Macdonald. They formed roughly half a semicircle. Lyttleton, followed by Wauchope, was to march between the river and Surgham Hill. Maxwell was to cross over the hill, while Lewis and Macdonald were to keep farther out to the right. Collinson's Egyptian brigade was to guard the stores and materials left behind.
The 21st Lancers scouted ahead of the British brigades, to discover if any foe were lurking behind Surgham Hill. When about half a mile south of the hill, they saw a small party of Dervish cavalry and some infantry, who were hiding in what looked like a shallow water course. The four squadrons rode forward at a gallop. A sharp musketry fire opened upon them, but without hesitation they dashed headlong at the Dervishes, when they found that, instead of a hundred and fifty foemen as they had supposed, some fifteen hundred Dervishes were lying concealed in the water course.