We had great trouble in recovering our remaining fourteen oxen since some of them had wandered far to find cover from the storm. At last, however, they were found uninjured except for some bruises from the hailstones, for it is wonderful, if they are left alone, how cattle manage to protect themselves against the forces of nature. In Africa, however, they seldom take shelter beneath trees during a thunderstorm, as is their habit here in England, perhaps because, such tempests being so frequent, they have inherited from their progenitors an instinctive knowledge that lightning strikes trees and kills anything that happens to be underneath them. At least, that is my experience. Well, we inspanned and trekked away from that remarkable cave. Many years afterwards, by the way, when Hans was dead, I tried to find it again and could not. I thought that I reached the same mountain slope in which it was, but I suppose that I must have been mistaken, since in that neighbourhood there are multitudes of such slopes and on the one that I identified I could discover no trace of the cave. Perhaps this was because there had been a land-slide and, with the funnel-like shaft in the mountain side down which the moonlight poured on to the picture of Heu-Heu, the orifice that, it will be remembered, was very small, had been covered up with rocks. Or it may be that I was searching the wrong slope, not having taken my bearings sufficiently when I visited the place at a time of tempest and hurry. Further, I was pressed and, desiring to reach a certain outspan before night fell, could only give about an hour to the quest and when it failed was obliged to get on. Nor have I ever met any one who was acquainted with this cave, so I suppose that it must have been known to the Bushmen and Hans only, dead now all of them, which is a pity because of the wonderful paintings that it contains or contained. You will remember I told you that just before the storm broke we were overtaken by a party of Kaffirs going to or returning from some feast. When we had gone about half a mile we found one of those Kaffirs again quite dead, but whether he (the body was that of a young man) had been killed by the lightning or by the hail, I was not sure. Evidently his companions were so frightened that they had left him where he lay, proposing, I suppose, to return and bury him later. So you will see that when it gave us shelter, this cave did us a good turn. Now I will skip all the details of my trek into Zululand, which was as are other treks, only slower, because it was a hard job to get that heavily laden wagon along with but fourteen oxen. Once, indeed, we stuck in a river, the White Umfolozi, quite near to the Nongela Rock or Cliff which frowns above a pool of the river. I shall never forget that accident because it caused me to be the unwilling witness of a very dreadful sight.