"See that rock up there?"

"Looks as if it would drop at any moment."

"Remember what Muata said about Ha.s.san drowning out the valley."

"One of his figures of speech."

"S'pose that rock fell; it would just about fill up this pa.s.sage, river and all. And if it did not quite, a few men working from the ledge, which you see would be behind the dam, could easily fill up the cracks. Then the river could be dammed and the valley flooded."

"They'd have to blast the rock, and the task would be too troublesome."

They returned slowly through the defile, stopping at the place where the warrior had sprung out on Compton, and on reaching the valley, went down among the rustling bananas and among the gardens, where the women stopped their work to shout out merry greetings, and to offer them earth-nuts, wild cherries, sweet cane from the maize patches, and a thick porridge-like beverage made from the red millet. They watched the little pickaninnies basking in the sun, and as they strolled, rejoicing in the brightness and in the beauty of this little island of rest, set within an ocean of trees, they were followed by an admiring company of lads, each carrying his hurling- stick. Coming to a little patch of reeds in the far corner of the valley, the black boys, with shouts, gave chase to a long-tailed finch, clothed in a beautiful waistcoat of orange. The two white chiefs threw aside their dignity, and when, after a breathless chase, the bird, hampered by its streaming tail-feathers, was caught, each chief stuck a feather in his hatband. They worked round the valley, seeing many strange birds and curious insects, back towards the cave, arriving on the ledge at dusk. At once they opened out on Mr. Hume with a description of where they had been and what they had seen.

The Hunter listened patiently, but he was evidently preoccupied.

"We have seen all the valley, sir, and if we do have to stay here longer than we thought, it is a consolation to think that it is a jolly place."

"I have been away myself," said Mr. Hume, "and I made an unpleasant discovery. At first I thought it best to keep it from you, but I know you would not like that."

"No, sir."

"The boat has gone!"

"Gone!"

"Clean gone; stolen or hidden away. I went down shortly after you had left, found the path by the marks I had made, never saw a living soul or any spoor but our own; and I tell you it was a great shock when I saw at the first glance that the boat was not there."

"I wonder----" began Venning.

"It is no good wondering," said the Hunter, testily. "Muata or his mother has had a hand in this."

"We can soon put that right," said Compton, "by demanding that the boat be produced within a certain time."

"That would mean war," said Mr. Hume. "I had thought of that, and so no doubt has Muata. The odds are in his favour by force of numbers, for he could starve us out in a week. Violence is no use.

Our best plan is to remain friendly, but watchful."

"Don't you think," said Venning, thoughtfully, "that we are on the wrong scent? Suppose the boat was stolen by Ha.s.san's men."

"It may be--it may be, lad; and yet, if Ha.s.san's men did find the boat, it seems to me they would have let it alone to disguise the fact of their presence. Anyway, we will make a further search to- morrow."

They had cause now for uneasiness, and the boys for the first time began to entertain suspicions about Muata's faithfulness, for the loss of the Okapi in the very thick of the forest meant to them what marooning is to the sailor man. They sat discussing the matter long into the night, and when morning came they looked out on the valley with other feelings than before. It was to them a prison, lovely still, but changed; and their eyes went to the spot where they had seen the bodies of the men upon whom Muata had fulfilled the law as he understood it, the terrible law of swift vengeance upon any who opposed the will of the chief. There were armed men on their way to the gorge from the village, and very soon, before the dew had dried on the gra.s.s, and while the morning clouds hung white on the hilltops, the chief himself came up with his headmen. And the reason of his coming was none else than to make Mr. Hume vice-chief, with full power, in his absence, over life and property in the valley; for, said he, "I go upon the trail myself, and who should have authority when I am gone but you, my friend?"

The headmen expressed themselves delighted.

"But," said the Hunter, troubled by this upset of his theory that Muata would think only of himself, "our boat has been taken."

"The water there is taboo," said Muata, without showing any surprise. "No one would go there but that one who may go. If the boat is gone it will be returned at the appointed time. See, my friend, I give you my seat under the council tree; have you also trust in Muata, the lone hunter."

"Do you go alone?"

"Ay, alone with the silent one--he of the four legs;" and a faint smile lit up the chiefs sombre and stern countenance, as he glanced at the jackal now reappearing after good eating.

Mr. Hume went aside with Muata to dissuade him from his purpose, but the chief was determined, having in his mind a plan to destroy Ha.s.san's canoes, as he had learnt from his spies that the Arab was arranging for another attack. So while the Hunter went down to be formally received by the clan, the two sub-chiefs, the Young Lion, and the Spider, went off on a reconnaissance of their own to the water that was "taboo," to all but one, as Muata had hinted. They picked up the trail from the marks that Mr. Hume had renewed on his last trip, and arrived on the banks of the unruffled pool. By contrast with the open valley bathed in sunshine, this sheet of water at the foot of the perpendicular cliffs was gloomy and creepy.

There was, too, a mystery about it, for it had no visible source.

There was no ripple on its smooth surface, no trace of a current, except in the centre, where, from time to time, bubbles appeared and disappeared, leaving just a trace of foam. They tossed pebbles in to judge the depth from the sound which ranged from the "splash" of the shallows to the gurgling "plop" of the deeps, and followed the pebbles with rocks, till at last the sluggish pool was stirred and furrowed with waves. And in the very midst of their sport a black hand appeared above the waters, and with a heavy roll the body itself floated before them, dead and stark.

The boys stood with their hands arrested, staring at this startling apparition.

Slowly it drifted away, the strong white teeth set in a grin, a dark oily stain trailing from numerous wounds on the body and limbs.

"It's a cannibal," said Compton, in a whisper.

"How did he come to be here?" muttered Venning, with a fearful glance around.

They stepped back to the shelter of a tree, and listened, for if one cannibal had found his way to the pool, it was pretty certain that others had. But there was no sound down in those shaded depths. The little waves on the pool quieted down, the surface recovered its gla.s.sy smoothness, the bubbles reappeared in the centre, and broke with a faint noise audible yet in the stillness. The pool had yielded up one of its secrets, and the poor body was now come to the end of its voyage, anch.o.r.ed apparently against a log of wood which had grounded against the bank.

"We can't leave it there!"

"No, d.i.c.k."

But the sudden, unexpected, ghastly upheaval from the deep of that stark body had naturally badly shaken them, and they stood where they were in nervous expectation of some other horror. If this place was "taboo" except to one yet unknown to them, it might be that solitary priest or priestess of the pool was now watching them, even if there were no other cannibals near at hand. So they lingered yet a little longer behind their tree, advancing a foot again and again, only to withdraw it at some fancied noise.

At last Compton stepped out with his carbine at the ready, stood on the sh.o.r.e a moment then went on till he was opposite the dead man.

There Vending joined him.

There was a movement in the water among some reeds, then a ripple like that made by a heavy fish, and the body, leaving its moorings, went slowly away.

"Crocodile," muttered Venning, whose nerves had never quite recovered the shock caused the night the lion charged.

Compton frowned and shook his head.

The dark body went straight on, stopped a spell at a cl.u.s.ter of reeds, then moved on across, moved by some volition not its own, and not due to the current.

"It's very queer, Venning."

"It's horrible."

Compton's glance came back from the gruesome spectacle to the log, and with a start of surprise he stooped down to pick up something.

As he did so, Venning, with a yell of terror, gripped him by the shoulder. Looking up and across, Compton saw the dead man stand erect in the water, his head and shoulders above the surface, and his face towards them! He felt the moisture break out on his brow when the horrid thing began to advance without movement of its own.

Venning pointed a finger across. "It's coming," he gasped, turned and ran; and Compton felt no shame in running after.

They flew from the dark pool and its nameless horror; but when from the height they paused breathless and gasping to look down, there was no stain, or blot, or ripple on its calm face.

"Ugh!" said Compton, "it looks what it is--' Deadman's Pool.'"

Venning shuddered, turned his back upon the sheer drop with the still water at its bottom, and did not stop again until he had the peaceful valley at his feet, when he took off his hat.