The mounted forces marched from Wad Hamed at dawn on the 27th and, striking out into the desert, skirted the rocky hills. Besides the 21st Lancers and nine squadrons of Egyptian cavalry, the column included the Camel Corps, 800 strong, and a battery of Horse Artillery; and it was a fine sight to see all these horsemen and camel-men trotting swiftly across the sand by squadrons and companies, with a great cloud of dust rising from each and drifting away to the northward.
The zeriba of the camp at Royan had been already made and much of the ground cleared by the energy of the Soudanese division, which had been the first to arrive. An advanced depot was established at Royan island which was covered with white hospital tents, near which there was a forest of masts and sails. The barges and boats containing the stores and kits awaited the troops, and they had only to bivouac along the river-bank and shelter themselves as quickly as possible from the fierce heat of the sun. The dark hills of Shabluka, among and beneath which the camp and army nestled, lay behind us now. To the south the country appeared a level plain covered with bush and only broken by occasional peaks of rock. The eternal Nile flowed swiftly by the tents and shelters, and disappeared mysteriously in the gloom of the gorge; and on the further bank there rose a great mountain—Jebel Royan—from the top of which it was said that men might see Khartoum.
The whole army broke camp at Royan on the 28th of August at four o'clock in the afternoon, and marched to Wady el Abid six miles further south. We now moved on a broad front, which could immediately be converted into a fighting formation. This was the first time that it had been possible to see the whole force—infantry, cavalry, and guns—on the march at once. In the clear air the amazing detail of the picture was striking. There were six brigades of infantry, composed of twenty-four battalions; yet every battalion showed that it was made up of tiny figures, all perfectly defined on the plain. A Soudanese brigade had been sent on to hold the ground with pickets until the troops had constructed a zeriba. But a single Dervish horseman managed to evade these and, just as the light faded, rode up to the Warwickshire Regiment and flung his broad-bladed spear in token of defiance. So great was the astonishment which this unexpected apparition created that the bold man actually made good his escape uninjured.
On the 29th the forces remained halted opposite Um Teref, and only the Egyptian cavalry went out to reconnoitre. They searched the country for eight or nine miles, and Colonel Broadwood returned in the afternoon, having found a convenient camping-ground, but nothing else. During the day the news of two river disasters arrived—the first to ourselves, the second to our foes. On the 28th the gunboat Zafir was steaming from the Atbara to Wad Hamed, intending thereafter to ascend the Shabluka Cataract. Suddenly—overtaken now, as on the eve of the advance on Dongola, by misfortune—she sprang a leak, and, in spite of every effort to run her ashore, foundered by the head in deep water near Metemma. The officers on board—among whom was Keppel, the commander of the whole flotilla—had scarcely time to leap from the wreck, and with difficulty made their way to the shore, where they were afterwards found very cold and hungry. The Sirdar received the news at Royan. His calculations were disturbed by the loss of a powerful vessel; but he had allowed for accidents, and in consequence accepted the misfortune very phlegmatically. The days of struggling warfare were over, and the General knew that he had a safe margin of strength.
The other catastrophe afflicted the Khalifa, and its tale was brought to the advancing army by the Intelligence spies, who to the last—even when the forces were closing—tried to pass between them. Not content with building batteries along the banks, Abdullah, fearing the gunboats, had resolved to mine the river. An old officer of the old Egyptian army, long a prisoner in Omdurman, was brought from his chains and ordered to construct mines. Two iron boilers were filled with gunpowder, and it was arranged that these should be sunk in the Nile at convenient spots. Buried in the powder of each was a loaded pistol with a string attached to the trigger. On pulling the string the pistol, and consequently the mine, would be exploded. So the Khalifa argued; nor was he wrong. It was resolved to lay one mine first. On the 17th of August the Dervish steamer Ismailia moved out into the middle of the Nile, carrying one of the boilers fully charged and equipped with pistol detonator. Arrived at the selected spot, the great cylinder of powder was dropped over the side. Its efficiency as a destructive engine was immediately demonstrated, for, on the string being pulled by accident, the pistol discharged itself, the powder exploded, and the Ismailia and all on board were blown to pieces.
Undeterred by the loss of life, and encouraged by the manifest power of the contrivance, the Khalifa immediately ordered the second of the two boilers to be sunk in the stream. As the old Egyptian officer had been killed by the explosion, the Emir in charge of the arsenal was entrusted with the perilous business. He rose, however, to the occasion, and, having first taken the precaution of letting the water into the boiler so as to damp the powder, he succeeded in laying the second mine in mid-stream, to the joy and delight of Abdullah, who, not understanding that it was now useless, overwhelmed him with praise and presents.
Beguiled with such stories and diversions, the day of rest at Wady el Abid passed swiftly. Night brought beetles, bugs, and ants, and several men were stung by scorpions—a most painful though not dangerous affair. Towards morning it began to rain, and everyone was drenched and chilled when the sun rose across the river from behind a great conical hill and dispersed the clouds into wisps of creamy flame. Then we mounted and set out. This day the army moved prepared for immediate action, and all the cavalry were thrown out ten miles in front in a great screen which reached from the gunboats on the river to the Camel Corps far out in the desert.
When we had advanced a little further, there arose above the scrub the dark outlines of a rocky peak, the hill of Merreh. The whole of the 21st Lancers now concentrated, and, trotting quickly forward, occupied this position, whence a considerable tract of country was visible. We were hardly twenty-five miles from Khartoum, and of that distance at least ten miles were displayed. Yet there were no enemy. Had they all fled? Would there be no opposition? Should we find Omdurman deserted or submissive? These were questions which occurred to everyone, and many answered them affirmatively. Colonel Martin had meanwhile heliographed back to the Sirdar that all the ground was up to this point clear, and that there were no Dervishes to be seen. After some delay orders were signalled back for one squadron to remain till sunset in observation on the hill and for the rest to return to camp.
With two troops thrown out a mile in front we waited watching on the hill. Time passed slowly, for the sun was hot. Suddenly it became evident that one of the advanced troops was signalling energetically. The message was spelt out. The officer with the troop perceived Dervishes in his front. We looked through our glasses. It was true. There, on a white patch of sand among the bushes of the plain, were a lot of little brown spots, moving slowly across the front of the cavalry outposts towards an Egyptian squadron, which was watching far out to the westward. There may have been seventy horsemen altogether. We could not take our eyes off those distant specks we had travelled so far, if possible, to destroy. Presently the Dervish patrol approached our right troop, and apparently came nearer than they imagined, for the officer who commanded—Lieutenant Conolly—opened fire on them with carbines, and we saw them turn and ride back, but without hurrying.
The camp to which we returned was a very different place from the one we had left in the morning. Instead of lying along the river-bank, it was pitched in the thinner scrub. The bushes had on all sides been cut down, the ground cleared, and an immense oblong zeriba was built, around which the six brigades were drawn up, and into which cavalry, guns, and transport were closely packed.