"Haul on the rope, for heaven's sake!" spluttered he. "This water would pushion a nigger. Haul me up quick! There's snakes an' wee crocodiles tickling me!"

In haste we endeavoured to obey his beseeching call, but the sodden cord was not equal to the strain, and twice the strands snapped before our comrade's bulk was raised from the water.

"We'd better double the line, boys," I said. "Mac must have increased in weight during his sojourn below."

The unfortunate victim of his own prowess groaned lugubriously from his dank and dark prison, but found time between his grumbling to curse right heartily the various denizens of his watery environment.

"Be patient, Mac, be patient," counselled Stewart, rearranging the haulage system. "Scientific exploration is not without its drawbacks, as you should well ken by this time." He continued addressing choice words of wisdom to his helpless compatriot while he deftly spliced the rope. During this lull in operations I chanced to look abroad over the sweltering plain, and at once my eyes detected the curling "smokes" of a native camp. We had been too busily engrossed with other matters since our arrival on the hill-top to observe the landscape on the east, and now the nearness of a possible hostile band appalled me. Our rifles had been left in camp, and I only carried a revolver.

"By Jove!" said Phil, "we are going to be in a fix." Then a shout of alarm broke from him: "There's about a dozen of the ugliest bucks I ever saw coming right up the hill," he said feebly. I followed his gaze, and, sure enough, I could see a number of hideously-scarred and feather-bedecked warriors making their way through the scraggy brushwood, scarcely a hundred yards from where we stood. With frantic haste, we again endeavoured to rescue our companion from his awkward predicament, but fate was surely against us. We had with our combined efforts raised him only a few feet when the rope came in contact with the broken ledge, and the strands parted like so many straws, so that Mac was once more precipitated back into the slimy waters. Our plans had now to be made quickly.

"Go down to the camp, Stewart," I said, "and fetch a camel pack-rope and my rifle. Phil and I will make the best of things till you come back." Forgetful alike of the burning rock and the sharp-edged rubble, he slid down the smooth declivity, and made a wild burst for the foot of the hill. Almost immediately the many-barbed spears of the aborigines bore into view from the opposite side of the dome, and we laid ourselves flat on the curving wall and breathlessly waited events. Slowly a weird procession filed on to the elevated platform, and continued a solemn march around the well-trod channel which had first claimed our attention. Round and round they circled, clashing their spears and shields, and swaying their lithe black bodies drunken-like. Then suddenly they broke out into a dismal chant, and quickened their step into a half-run, ludicrous to behold. It was soon evident to us that the warrior band had not come to level their spears against us; they never once glanced in our direction. Their gaze was apparently fixed on the ancient crater in which Mac lay entombed. They had come to worship the great spirit Wangul, the dreaded "Dweller in the Waters."

The dénoûement of this interesting ceremonial was rapid and unexpected. Just when the reeling warriors had ceased their vocal exercise from sheer want of breath, when the ensuing silence was broken only by the pattering of many feet on the sun-baked lava, a hoarse voice thundered up from subterranean caverns, and at the sound the poor nomads halted in their mad career, and gazed at each other terror-stricken.

"Babba, Wangul, Moori!" they cried shrilly, "Babba, Wangul, Moori!" ("The Water God speaks"). Again a sonorous echo reverberated up from the heart of the mountain, completing their demoralisation. A moment they hesitated, then, dashing their warlike arms to the ground, and tearing the feathers from their hair, they fled madly back whence they had come. Phil gave a gasp of relief, and I felt thankful beyond expression. Then we quickly made our way through the litter of discarded weapons towards the Wangul's home. The words that floated to our ears when we gazed into the depths were sulphurous in the extreme. Poor Mac could not understand why he had been so ruthlessly neglected, and his complaints were deep and eloquent.