The force started at sunset. The distance to be travelled was a hundred and eighteen miles, and the road was a very difficult one. The ground rose steeply, almost from the edge of the river; and at times had to be traversed in single file.

As night came on, the scene was a weird one. On one side the rocky ascent rose, black and threatening. On the other, the river rushed foaming, only broken by the rocks and little islands of the cataract.

Gregory had been ordered to remain with the camel train; to keep them, as much as possible, together, and prevent wide gaps from occurring in the ranks. It was tedious work; and the end of the train did not arrive, until broad daylight, at the spot where the infantry halted. He at once told Zaki to pitch his little tent, which he had already shown him how to do, while he went to see if there were any orders at headquarters.

He found the staff were just sitting down to a rough breakfast. Being told, after the meal, that he would not be wanted during the day; but that at night he was to continue his work with the camels; he went back to his tent, and threw himself on his bed. But, in spite of the fly being fastened up, and a blanket thrown over the tent, the heat was so great that he was only able to doze off occasionally.

He observed that even the black troops suffered from the heat. They had erected screens, with their blankets placed end to end, supported by their guns; and lay there, getting what air there was, and sheltered from the direct rays of the sun. Few slept. Most of them talked, or smoked.

There was some argument, among the officers, as to the relative advantages of night and day marches. All agreed that, if only one march had to be done, it was better to do it at night; but when, as in the present case, it would last for seven or eight days, many thought that, terrible as would be the heat, it would be better to march in the day, and permit the troops to sleep at night. This opinion certainly seemed to be justified; for, at the end of the third day, the men were so completely worn out from want of sleep that they stumbled as they marched; and were with difficulty restrained from throwing themselves down, to get the much-needed rest.

Gregory always went down, as soon as the column arrived at its halting place, as he did before starting in the evening, to bathe in some quiet pool or backwater; and, much as he had set himself against taking spirits, he found that he was unable to eat his meals, unless he took a spoonful or two with his water, or cold tea.

On the evening of the third day, they passed the battlefield of Kirkeban, where General Earle fell when the River Expedition was attacked by the Dervishes. Next day they halted at Hebbeh, where Colonel Stewart, on his way down with a number of refugees from Khartoum, was treacherously murdered. A portion of the steamer was still visible in the river.

Day after day the column plodded on, for the most part strung out in single file, the line extending over many miles; and, late on the evening of the 6th of August, they reached a spot within a mile and a half of Abu Hamed, the hundred and eighteen miles having been accomplished in seven days and a half.

So far as they knew, the enemy had, as yet, received no news of their approach. Three hours' rest was given the troops, and then they marched out, in order of battle.