The report of the route from Kohi was considered encouraging. At Gedid the old wells promised sufficient water to refill the skins, and within seven miles of the wells were two large pools at which the camels could be watered. The column, therefore, prepared for the journey. Nothing was neglected which could increase the water carried or diminish the number of drinkers. Only twelve cavalry were taken. The horses of the Maxim guns and the mules of the battery were reduced to the lowest possible number. Every person, animal, or thing not vitally necessary was remorselessly excluded. In order to lighten the loads and make room for more water, even the ammunition was limited to 100 rounds per rifle. The daily consumption of water was restricted to one pint for men, six gallons for horses, and five for mules. To lessen the thirst caused by the heat Colonel Kitchener decided to march by night. An advanced depot was formed at Gedid and food for two days accumulated there. Besides this, each unit carried ten, and the column transport seven, days' rations. Thus the force were supplied with food up till the 9th of February, and their radius of action, except as restricted by water, was nineteen days. This was further extended five days by the arrangement of a convoy which was to set out on the 30th of January to meet them as they returned.
The column—numbering 1,604 officers and men and 1,624 camels and other beasts of burden—started from Kohi at 3 P.M. on the 23rd of January, having sent on a small advanced party to the wells of Gedid twelve hours before. The country through which their route lay was of barren and miserable aspect. They had embarked on a sandy ocean with waves of thorny scrub and withered grass. From the occasional rocky ridges, which allowed a more extended view, this sterile jungle could be seen stretching indefinitely on all sides. Ten miles from the river all vestiges of animal life disappeared. The land was a desert; not the open desert of the Northern Soudan, but one vast unprofitable thicket, whose interlacing thorn bushes, unable to yield the slightest nourishment to living creatures, could yet obstruct their path.
Through this the straggling column, headed in the daylight by the red Egyptian flag and at night by a lantern on a pole, wound its weary way, the advanced guard cutting a path with axes and marking the track with strips of calico, the rearguard driving on the laggard camels and picking up the numerous loads which were cast. Three long marches brought them on the 25th to Gedid. The first detachment had already arrived and had opened up the wells. None gave much water; all emitted a foul stench, and one was occupied by a poisonous serpent eight feet long—the sole inhabitant. The camels were sent to drink at the pool seven miles away, and it was hoped that some of the water-skins could be refilled; but, after all, the green slime was thought unfit for human consumption, and they had to come back empty.
The march was resumed on the 26th. The trees were now larger; the scrub became a forest; the sandy soil changed to a dark red colour; but otherwise the character of the country was unaltered. The column rested at Abu Rokba. A few starving inhabitants who occupied the huts pointed out the grave of the Khalifa's father and the little straw house in which Abdullah was wont to pray during his visits. Lately, they said, he had retired from Aigaila to Shirkela, but even from this latter place he had made frequent pilgrimages.
At the end of the next march, which was made by day, the guides, whose memories had been refreshed by flogging, discovered a large pool of good water, and all drank deeply in thankful joy. A small but strong zeriba was built near this precious pool, and the reserve food and a few sick men were left with a small garrison under an Egyptian officer. The column resumed their journey. On the 29th they reached Aigaila, and here, with feelings of astonishment scarcely less than Robinson Crusoe experienced at seeing the footprint in the sand, they came upon the Khalifa's abandoned camp. A wide space had been cleared of bush, and the trees, stripped of their smaller branches, presented an uncanny appearance. Beyond stood the encampment—a great multitude of yellow spear-grass dwellings, perfectly clean, neatly arranged in streets and squares, and stretching for miles. The aspect of this strange deserted town, rising, silent as a cemetery, out of the awful scrub, chilled everyone who saw it. Its size might indeed concern their leader. At the very lowest computation it had contained 20,000 people. How many of these were fighting men? Certainly not fewer than 8,000 or 9,000. Yet the expedition had been sent on the assumption that there were scarcely 1,000 warriors with the Khalifa!
Observing every precaution of war, the column crawled forward, and the cavalry and Camel Corps, who covered the advance, soon came in contact with the enemy's scouts. Shots were exchanged and the Arabs retreated. The column halted three miles to the east of this position, and, forming a strong zeriba, passed the night in expectation of an attack. Nothing, however, happened, and at dawn Mitford was sent out with some mounted 'friendlies' to reconnoitre. At ten o'clock he returned, and his report confirmed the conclusions which had been drawn from the size of the Aigaila camp. Creeping forward to a good point of view, the officer had seen the Dervish flags lining the crest of the hill. From their number, the breadth of front covered, and the numerous figures of men moving about them, he estimated not fewer than 2,000 Arab riflemen in the front line. How many more were in reserve it was impossible to say. The position was, moreover, of great strength, being surrounded by deep ravines and pools of water.
The news was startling. The small force were 125 miles from their base; behind them lay an almost waterless country, and in front was a powerful enemy. An informal council of war was held. The Sirdar had distinctly ordered that, whatever happened, there was to be no waiting; the troops were either to attack or retire. Colonel Kitchener decided to retire. The decision having been taken, the next step was to get beyond the enemy's reach as quickly as possible, and the force began their retreat on the same night. The homeward march was not less long and trying than the advance, and neither hopes of distinction nor glamour of excitement cheered the weary soldiers. As they toiled gloomily back towards the Nile, the horror of the accursed land grew upon all. Hideous spectacles of human misery were added to the desolation of the hot, thorny scrub and stinking pools of mud. The starving inhabitants had been lured from their holes and corners by the outward passage of the troops, and hoped to snatch some food from the field of battle. Disappointed, they now approached the camps at night in twos and threes, making piteous entreaties for any kind of nourishment. Their appeals were perforce unregarded; not an ounce of spare food remained.
Towards the end of the journey the camels, terribly strained by their privation of water, began to die, and it was evident that the force would have no time to spare. One young camel, though not apparently exhausted, refused to proceed, and even when a fire was lighted round him remained stubborn and motionless; so that, after being terribly scorched, he had to be shot. Others fell and died all along the route. Their deaths brought some relief to the starving inhabitants. For as each animal was left behind, the officers, looking back, might see first one, then another furtive figure emerge from the bush and pounce on the body like a vulture; and in many cases before life was extinct the famished natives were devouring the flesh.
On the 5th of February the column reached Kohi, and the Kordofan Field Force, having overcome many difficulties and suffered many hardships, was broken up, unsuccessful through no fault of its commander, its officers, or its men.
For nearly a year no further operations were undertaken against the Khalifa, and he remained all through the spring and summer of 1899 supreme in Kordofan, reorganising his adherents and plundering the country—a chronic danger to the new Government, a curse to the local inhabitants, and a most serious element of unrest. The barren and almost waterless regions into which he had withdrawn presented very difficult obstacles to any military expedition, and although powerful forces were still concentrated at Khartoum, the dry season and the uncertain whereabouts of the enemy prevented action. But towards the end of August trustworthy information was received by the Intelligence Department, through the agency of friendly tribesmen, that the Khalifa, with all his army, was encamped at Jebel Gedir—that same mountain in Southern Kordofan to which nearly twenty years before he and the Mahdi had retreated after the flight from Abba Island. Here among old memories which his presence revived he became at once a centre of fanaticism. Night after night he slept upon the Mahdi's stone; and day after day tales of his dreams were carried by secret emissaries not only throughout the Western Soudan, but into the Ghezira and even to Khartoum. And now, his position being definite and his action highly dangerous, it was decided to move against him.