“What do you wish?” asked Willem. “Abandon the pack-oxen?”

“We shall probably have to do so in the end. It appears as if the time had come. We had better save our horses and ourselves and let the others go.”

“You forget, Hendrik,” rejoined his brother, “that we are not all mounted. We cannot desert those who are afoot.”

“Of course not,” answered the young cornet, “but even Swart, who is not a fast traveller, could go two miles to one he is doing now, with all his time engaged in urging forward the animals.”

This conversation was interrupted by a shout from Swartboy himself. He was standing over a little plant with narrow leaves, that rose not more than six inches above the surface of the plain. It was the stem of the water-root,—a plant that, on the karroos of South Africa, has saved the lives of thousands of thirsty travellers, that would otherwise have perished. Several stems of the plant were seen growing around the spot, and the Bushman knew that the want from which all had been suffering, would be at least partially supplied. A pick-axe and spade were hastily procured from a pack carried by one of the oxen; and Swartboy commenced digging around the stem of the plant first discovered. The earth, baked by the sun nearly as hard as a burnt brick, was removed in large flakes, and the bulb was soon reached,—at the depth of ten or twelve inches below the surface. When taken out, it was seen to be of an oval shape, about seven inches in its longest diameter, and covered with a thin cuticle of a bright brown colour. The juicy pulp of the water-root was cut into slices, and chewed. It tasted like water itself, that is, it had no taste at all. Assegais and knives were now called into active play; and so abundant was the plant growing near, that in a short time every man, horse, and ox had been refreshed with a bulb.

The first root obtained by Congo was shared with Spoor’em, the hound, which, with his tongue far-extended, had been crawling along with much difficulty.

The young hunters might have passed over miles of karroo covered with the bulb, without knowing that its slender, insignificant stems were the indication of a fountain spread bountifully beneath their feet.

Congo and the Makololo were also ignorant of the character of this curious plant; and all would have gone on without discovering it, had Swartboy not been of the party. For the advantage he had given them, by introducing them to the plant, the Bushman claimed nearly as much credit as though he had created it. As no one was disposed to underrate the service he had done, he obtained what appeared full compensation for all the annoyance he had felt at being so long neglected.

Partly refreshed by the cooling sap of the water-root, the cattle behaved as though they thought there was still something worth living for. They moved forward with renewed animation; and a long march was made in the course of the afternoon.

Just as the sun was setting, several huts were descried to the south; and our travellers continued towards them, quite confident that a full supply of water would be found near the huts, which, as they drew towards them, proved to be a kraal of the Bechuanas. The fear of losing their cattle was no longer felt.