At the end of two hours we sat down. The safari of twenty men was a very miscellaneous lot, consisting of the rag-tag-and-bobtail of the bazaars picked up in a hurry. They were soft and weak, and they straggled badly. The last weakling—prodded along by one of our two askaris—limped in only at the end of half an hour. Then we took a new start.

The sun was by now up and hot. The work was difficult enough at best, but the weight of the tropics was now cast in the scale. Twice more within the next two hours we stopped to let every one catch up. Each time this required a longer interval. In the thorn it was absolutely essential to keep in touch with every member of the party. A man once lost would likely remain so, for we could not afford to endanger all for the sake of one.

Time wore on until noon. Had it not been for a thin film of haze that now overspread the sky, I think the sun would have proved too much for some of the men. Four or five straggled so very badly that we finally left them in charge of one of our two askaris, with instructions to follow on as fast as they could. In order to make this possible, we were at pains to leave a well-marked trail.

After this fashion, slowly, and with growing anxiety for some of the men, we drew up on our landmark hill. There our difficulties increased; the thorn brush thickened. Only by a series of short zigzags, and by taking advantage of every rhino trail going in our direction, could we make our way through it at all; while to men carrying burdens on their heads the tangle aloft must have been fairly maddening. So slow did our progress necessarily become, and so difficult was it to keep in touch with everybody, that F. and I finally halted for consultation. It was decided that I should push on ahead with Memba Sasa to make certain that we were not on the wrong line, while F. and the askaris struggled with the safari.

Therefore I took my compass bearing afresh, and plunged into the scrub. The sensation was of hitting solid ground after a long walk through sand. We seemed fairly to shoot ahead and out of sight. Whenever we came upon earth we marked it deeply with our heels; we broke twigs downwards, and laid hastily-snatched bunches of grass to help the trail we were leaving for the others to follow. This, in spite of our compass, was a very devious track. Besides, the thorn bushes were patches of spiky aloe coming into red flower, and the spears of sisal.

After an hour's steady, swift walking the general trend of the country began to slope downwards. This argued a watercourse between us and the hills around Kilimanjaro. There could be no doubt that we would cut it; the only question was whether it, like so many desert watercourses, might not prove empty. We pushed on the more rapidly. Then we caught a glimpse through a chance opening, of the tops of trees below us. After another hour we suddenly burst from the scrub to a strip of green grass beyond which were the great trees, the palms, and the festooned vines of a watercourse. Two bush bucks plunged into the thicket as we approached, and fifteen or twenty mongooses sat up as straight and stiff as so many picket pins the better to see us.

For a moment my heart sank. The low undergrowth beneath the trees apparently swept unbroken from where we stood to the low bank opposite. It was exactly like the shallow, damp but waterless ravines at home, filled with black berry vines. We pushed forward, however, and found ourselves looking down on a smooth, swift flowing stream.

It was not over six feet wide, grown close with vines and grasses, but so very deep and swift and quiet that an extraordinary volume of water passed, as through an artificial aqueduct. Furthermore, unlike most African streams, it was crystal clear. We plunged our faces and wrists in it, and took long, thankful draughts. It was all most grateful after the scorching desert. The fresh trees meeting in canopy overhead were full of monkeys and bright birds; festooned vines swung their great ropes here and there; long heavy grass carpeted underfoot.

After we had rested a few minutes we filled our empty canteens, and prepared to start back for our companions. But while I stood there, Memba Sasa—good, faithful Memba Sasa—seized both canteens and darted away.

"Lie down!" he shouted back at me, "I will go back."