to wet my finger and hold it up to discover the point from which it came. I hoped that I should be able to get close up to the animals. Now they stopped and fed, now they moved on again slowly. Presently I saw them stop, when they began switching their tails, and sniffing the air, and scraping the earth impatiently with their hoofs. As I was concealed by the ground, which here was sufficiently uneven for the purpose, I did not think that they could have discovered me. Presently I was startled by the fierce growl of some animal at no great distance. I stopped; and looking round, I saw to my horror a huge lion and lioness at a short way off, just above me. It was evident that they had been following the gnus, who had only at that instant begun to suspect their presence. The lion must at the same time have discovered me, and uttered the roar which I had heard, while his companion was still creeping on after the gnus. I stopped and knelt down, holding my rifle ready to fire should the lion approach me. Still there was the lioness, and being sure that the report of my gun would attract her even should I kill the lion, I determined not to fire till it was absolutely necessary. The growl which the lion uttered at seeing me must have been heard by the gnus, which now set off at a rapid pace to escape from their pursuers. The lioness darted forward in pursuit, and the lion, uttering a few more savage roars at me, turned round and followed her. I was free from their company for the moment, but the knowledge that they were in the neighbourhood added greatly to my anxiety. I could not help fearing, too, that they or others might find their way to poor Natty's hut during my absence. I had for the moment forgotten my thirst, but now again the sufferings I had been enduring returned, and I turned my eyes once more towards the spot where I had seen the pond. Both the gnus and the lions had disappeared. I went on, thinking that I must soon reach the water. After hurrying on till I felt ready to drop, I found myself standing on an extent of hard-baked earth, while the glittering pool I had hoped to reach had disappeared. I looked round. Similar pools appeared in various places on the very ground I had come over. I knew therefore that they were but deceptions caused by the mirage. What had become of the lions I could not tell. I only hoped that the gnus had led them a long chase, and that they were far away from me.