Advancing along the road, in the immediate track of one of these desultory and inexplicable whirlwinds, was a man on horseback. The man looked limp and dirty, and the horse limper and dirtier. The hot wind had "taken all the bones out of them," as the Kafirs say, which was not very much to be wondered at, seeing that they had been journeying through it for the last four hours without off-saddling. Suddenly the whirlwind, which had been travelling along smartly, halted, and the dust, after revolving a few times in the air like a dying top, slowly began to disperse in the accustomed fashion. The man on the horse halted also, and contemplated it in an absent kind of way."It's just like a man's life," he said aloud to his horse, "coming from nobody knows where, nobody knows why, and making a little column of dust on the world's highway, then passing away, leaving the dust to fall to the ground again, to be trodden under foot and forgotten."The speaker, a stout, well set-up, rather ugly man, apparently on the wrong side of thirty, with pleasant blue eyes and a reddish peaked beard, laughed a little at his own sententious reflection, and then gave his jaded horse a tap with the sjambock in his hand."Come on, Blesbok," he said, "or we shall never get to old Croft's place to-night. By Jove! I believe that must be the turn," and he pointed with his whip to a little rutty track that branched from the Wakkerstroom main road and stretched away towards a curious isolated hill with a large flat top, which rose out of the rolling plain some four miles to the right. "The old Boer said the second turn," he went on still talking to himself, "but perhaps he lied. I am told that some of them think it is a good joke to send an Englishman a few miles wrong. Let's see, they told me the place was under the lee of a table-topped hill, about half an hour's ride from the main road, and that is a table-topped hill, so I think I will try it. Come on, Blesbok," and he put the tired nag into a sort of "tripple," or ambling canter much affected by South African horses."Life is a queer thing," reflected Captain John Niel to himself as he cantered along slowly. "Now here am I, at the age of thirty-four, about to begin the world again as assistant to an old Transvaal farmer. It is a pretty end to all one's ambitions, and to fourteen years' work in the army; but it is what it has come to, my boy, so you had better make the best of it."Just then his cogitations were interrupted, for on the farther side of a gentle slope suddenly there appeared an extraordinary sight. Over the crest of the rise of land, now some four or five hundred yards away, a pony with a lady on its back galloped wildly, and after it, with wings spread and outstretched neck, a huge cock ostrich was speeding in pursuit, covering twelve or fifteen feet at every stride of its long legs. The pony was still twenty yards ahead of the bird, and travelling towards John rapidly, but strive as it would it could not distance the swiftest thing on all the earth. Five seconds passed-the great bird was close alongside now-Ah! and John Niel turned sick and shut his eyes as he rode, for he saw the ostrich's thick leg fly high into the air and then sweep down like a leaded bludgeon!