It was three o'clock in the afternoon before we woke, to find our bearers preparing to return. They had seen enough of the desert already, and no number of knives would have tempted them to come a step farther. So we took a hearty drink, and having emptied our water-bottles, filled them up again from the gourds that they had brought with them, and then watched them depart on their twenty miles' tramp home.
At half-past four we also started. It was lonely and desolate work, for with the exception of a few ostriches there was not a single living creature to be seen on all the vast expanse of sandy plain. Evidently it was too dry for game, and with the exception of a deadly-looking cobra or two we saw no reptiles. One insect, however, we found abundant, and that was the common or house fly. There they came, "not as single spies, but in battalions," as I think the Old Testament[6] says somewhere. He is an extraordinary insect is the house fly. Go where you will you find him, and so it must have been always. I have seen him enclosed in amber, which is, I was told, quite half a million years old, looking exactly like his descendant of to-day, and I have little doubt but that when the last man lies dying on the earth he will be buzzing round—if this event happens to occur in summer—watching for an opportunity to settle on his nose.
At sunset we halted, waiting for the moon to rise. At last she came up, beautiful and serene as ever, and, with one halt about two o'clock in the morning, we trudged on wearily through the night, till at last the welcome sun put a period to our labours. We drank a little and flung ourselves down on the sand, thoroughly tired out, and soon were all asleep. There was no need to set a watch, for we had nothing to fear from anybody or anything in that vast untenanted plain. Our only enemies were heat, thirst, and flies, but far rather would I have faced any danger from man or beast than that awful trinity. This time we were not so lucky as to find a sheltering rock to guard us from the glare of the sun, with the result that about seven o'clock we woke up experiencing the exact sensations one would attribute to a beefsteak on a gridiron. We were literally being baked through and through. The burning sun seemed to be sucking our very blood out of us. We sat up and gasped.
"Phew," said I, grabbing at the halo of flies which buzzed cheerfully round my head. The heat did not affect them.
"My word!" said Sir Henry.
"It is hot!" echoed Good.
It was hot, indeed, and there was not a bit of shelter to be found. Look where we would there was no rock or tree, nothing but an unending glare, rendered dazzling by the heated air that danced over the surface of the desert as it dances over a red-hot stove.
"What is to be done?" asked Sir Henry; "we can't stand this for long."
We looked at each other blankly.
"I have it," said Good, "we must dig a hole, get in it, and cover ourselves with the karoo bushes."