The sickness to which Victor referred is the dreaded pest of every South African traveller: the cattle disease which lately in England has carried off whole herds, is not dissimilar to the so-called sickness which affects South African horses and cattle. A horse may appear quite well in the morning, and even when ridden indicate no signs of illness; perhaps about mid-day he may appear slightly dull and lazy, and in the evening be dead. No remedy has yet been found to be effective against this sickness, and thus every traveller bargains to lose a large percentage of horses and oxen on every trip that he makes into strange districts; for it seems that horses seasoned in one district take the disease in another, and thus the traveller has to test the constitution of the animal that carries him by passing through various portions of country, many of which are what may be termed infected. In the far desert the loss of cattle and horses is a disaster beyond remedy, and often causes the ruin of the hunter, or, as in the present case, entails a great risk of life.

Almost concealed, even from close observation, amidst the dense bush of the ravine, Hans’ party believed they had escaped being seen by the ever-watchful Matabili, who seemed to continue their journey in the same direction they were pursuing when first observed. The horses were kept concealed behind the densest bushes, whilst Hans watched the enemy, who was more than a mile distant from him. The warrior, however, trained in the desert observes facts which would escape the attention of the civilised, or half-civilised man, and notices and attaches a meaning to trifling circumstances quite beyond the perception of the other. Just as the Matabili were within the shortest distance at which their path would bring them near the white fugitives, some vultures, attracted probably by the horses of the Dutchmen, halted in their steady flight, and commenced circling overhead Hans observed this at once, and knew the danger of the circumstance.

“The Matabili will see this and will become suspicious,” Hans exclaimed; “they are not men to overlook the vultures’ signal.”

Scarcely had he spoken before the Matabili halted and stood gazing at the bushes amidst which the party were crouching. A very short examination seemed to satisfy them, for, dividing into two parties, they started at a run towards the ravine, beating their shields and muttering a low-toned song.

“We had better ride for it,” said Hans; “we might kill half their number, but the remainder would finish us. Come, Katie, mount the schimmel horse; we will have a gallop.”

The two girls were soon mounted, and though they had to ride on a man’s saddle, with one stirrup crossed over to supply the place of a pommel, they had been too much accustomed to horses from their childhood to find much difficulty in this performance. Victor and Bernhard were soon ready also, and merely waiting for the signal to gallop off.

“Let the men descend into that hollow,” said Hans, “then they will not see us ride away. We will keep the slope of the hill, as the streams are smaller there than in the valley below. Now, be ready, men, and off with you.”

The horses, though far from fresh, in consequence of the small amount of food they had eaten, yet responded to the application of the impromptu whip which each rider had provided himself with, and started at a pace which, if continued, would have placed the riders far beyond the possibility of capture from any pedestrians. Hans, however, knew the infectious nature of the sickness, and watched with anxiety the action of the various horses, for if another horse died, one animal would have to carry double weight, a fact which would prevent any rapid progress. He knew too that the Matabili could journey fully fifty miles a day for several days, and this would be more than the half-starved horses could manage; so that the present position was one of extreme danger.

By the time the Matabili had reached the spot on which Hans and his party had been concealed, he had ridden nearly two miles away, and his spoor alone showed the Matabili how near they had been to their enemies; for they at once recognised the freshness of this spoor, whilst the dying horse showed that he had not been long deserted.

Not knowing that two out of the five riders were women, the Matabili fortunately did not pursue in a body, but despatching two of their fastest and best runners to watch the enemy and to bring back the latest intelligence, the remainder continued their journey towards the head-quarters of their chief.