We explored the cave for a quarter of a mile or so, stumbling, stooping, climbing, and sliding down precipitous slopes. Far off in the darkness sounded the steady drip, drip, drip of water, and several times our progress was stopped by black lakes into which a tossed stone would tell of depths that might be almost bottomless. We fired our shotguns and the loosened dirt and rocks and the thunder of thousands of bats' wings were enough to terrify the senses.

There is no telling how many centuries or ages these caverns have stood as they stand to-day. Doubtless the wild tribes of the mountain have occupied them for thousands of years, and doubtless a thousand years from now the descendants of these tribes of people and bats will still be there in the cisternlike caverns with the broad fan of sparkling water spreading like a beautiful curtain across the great archway of an entrance.

That night, after hours of climbing through great forests and across grassy slopes gay with countless varieties of beautiful and strange flowers, we pitched our camp on a wind-swept height eleven thousand feet up. The peaks of the mountain rose high above us only a mile or so farther on.

When the night fell the cold was intense, and we huddled about the camp-fire for warmth. Around each of the porters' camp-fires the humped-up natives crouched and dreamed of the warm valleys far below in the darkness. I suppose the cold made them irritable, for just as we were preparing to turn in there suddenly came a succession of screams from one of the groups—screams of a boy in mortal terror. The sounds breaking out so unexpectedly in the silent night were enough to freeze the blood in one's veins. I never heard such frantic screams—like those that might come from a torture-chamber.

One of the porters had become infuriated by one of the totos—small boys who go along to help the porters—and had started in to beat him. The boy was probably more frightened than hurt, but the matter was one demanding instant punitive action. So Abdi immediately inflicted it in a most satisfying manner.

Once more the silence of the mountain fell upon the camp, but it was hours before the shock to one's senses could be forgotten. I never before, nor never again expect to hear screams more harrowing or terrifying.

The next day a Martian sitting upon his planet with a powerful glass might have seen the amazing sight of three horses, one mule, two bullocks, a goat, and a sheep, preceded and followed by over a hundred human beings, painfully creep over the rim of the crater and breathlessly pause before the great panorama of Africa that lay stretched out for hundreds of miles on all sides. It was as though an army had ascended Mont Blanc, and thus Hannibal crossing the Alps was repeated on a small scale.

Leaving our horses on the rim of the crater, a few of us climbed the highest peak, fourteen thousand three hundred and seventy-five feet high, as registered by my aneroid barometer, and stood where very few had stood before. Even the official height of the mountain, as given on the maps, was found to be inaccurate, and illustrated how vaguely the geographers knew the mountain.

That night we camped in the crater, twelve thousand feet up, and washed in a boiling sulphur spring that sprang from the rocks on the Uganda side. Perhaps this was the boiling fountain the superstitious natives feared, for it was the only one we saw. And perhaps the great gorge through which the river Turkwel, or Suam, flowed on its long journey north was the door that Askar had told us about. It was the only door we saw, but Askar said the door he meant was away off somewhere else, and he was so vague and confused in his bearings that we felt his information was unreliable.

The crater of Mount Elgon has long since lost any resemblance to a volcanic crater. It is a great valley, or bowl, surrounded by a lofty rim that in reality is a considerable chain of mountains. The bowl is two or three miles long and as much wide, with tall grass growing on the small hills inside and thousands upon thousands of curious cactus-like trees. Several mountain streams tumble down from the gorges between the peaks and, uniting, flow out of the big gap in one stream, the river Turkwel, which separates Uganda from British East Africa.