Mr. Hume leant forward, and caught Venning by the ear.

"It is no joking matter," he went on. "When will the moon be at the full?"

"In three weeks from to-day," said Compton, grinning.

"Then before that we must be well away, or we may find ourselves life prisoners. Have you made any discovery to-day?"

"None! We were 'shadowed,' as before, by boys."

"So. Well, I will take measures to-morrow to put an end to this spying. They have had their fun out of me as chief, but I will have my turn."

Next day the vice-chief had his turn. He declared the next three days to be a period of work. Some of the men were to build a boom across the river in the defile, others were to construct a stone wall across the gorge leading from the Deadman's Pool; while he started the women and children on a new set of huts, having condemned the old village as unfit for habitation. Further, he pa.s.sed a law that any man, woman, or child found wandering about idle during the three days, would have to pa.s.s a night on the banks of the "tabooed" pool tied to a tree; and, finally, he appointed himself and the two sub-chiefs, the Young Lion and the Spider, as overseers, with right to appoint subst.i.tutes in their place.

"Those be the new laws," he said, in a roar, when the astounded council had listened to the end. "If any one disputes them, I will tie them head to heels and throw them into the river to learn wisdom."

No one so much as murmured, for they did not like the look of those yellow eyes.

"Then see that ye begin your appointed work at sunrise," he said, "for I will make medicine to see these laws are obeyed."

Then he returned to the ledge, and spent the afternoon with the two boys making rockets, using stout reeds as cases. In the dark these were fired off with great and awe-inspiring' effect on the villagers, who scuttled into their huts, and remained hid for the rest of the night, convinced that the "strong medicine" would indeed find them out if they did not obey this strange new law.

"I think I have fixed them for a time," said the Hunter, grimly, as he described his new feat as a lawmaker. "For three days we should have liberty to fully inspect the side of the valley above the pool."

In the morning, at sunrise, the entire clan started out promptly to their allotted tasks, and Mr. Hume inspected each gang. The women and children went to the far end of the valley, where the reeds grew, and the wise woman was appointed inspector.

"What is this new law, O great one?" she asked quietly, having been much subdued by the fiery rockets.

"You made the law, mother, that all should work, and I have honoured it. See that you honour it also."

"Yebo, great one. We women do not complain. It is a joy to us to see the men work also. Maybe in time," she added significantly, "the great one will do his turn also."

"Each in his turn, mother."

He went on up to the gorge, where Venning was on duty, remained a few minutes inspecting the work of wall-building, which should have been done before for defence, then appointed one of the headmen as overseer, and went on with Venning to the river outlet, where Compton was in charge. An overseer was appointed there, and Compton went on a tour of inspection from gang to gang, while the other two made a close investigation of the cliff for an entrance to the caves. The two following days they each in turn acted as general inspector of the works, while the two disengaged made a close inspection of the cliff; but at the end of the third day they had no success to report.

"The only thing to do now," said Mr. Hume, "is to visit the pool, and make a close examination of the walls."

"We could not examine the wall without swimming in the pool," said Venning, "and before I do that I am prepared to stay here a very long time."

"I cannot say I relish the idea myself, but I see no other way out of the mess. We must have the Okapi before the full moon. I will take a look at the pool alone to-morrow."

CHAPTER XX

THE SECRET WAY

But when day dawned the vice-chief was summoned to hear a message from Muata, who had reported that Ha.s.san had discovered the dark river leading up to the tabooed pool, and was sending up a strong fleet of canoes, while still more canoes were gathering on the other river by which he had made his first attack. His orders were that a body of picked men were to join him to take part in an attack on the first body of the enemy. Mr. Hume was fully occupied in carrying out these instructions, but on the chiefs mother suggesting that the chosen band should be accompanied by the Young Lion, he emphatically declined to allow this.

"As you wish to keep us here," he said, "we will stay here; and, take notice, we have already seen what was in the mind of the chief by taking steps to protect the entrance above the tabooed water."

The chiefs mother desisted, but she went up to interview the two young chiefs.

"The great one," she said, "has very strong medicine?"

Compton nodded his head gravely.

"He was consulting with the spirits in the night when he sent forth those fire-devils?"

Another nod.

"Wow! And the spirits told him to build a wall across the entrance, and to make a fence across the river?"

"That was wisely done, as you see, mother."

"Haw! Tell me why the spirits told him to move the village to a place which is further from this cave;" and she looked through narrowed eyes.

"Ohe!" said Venning, "that was also wise. The old village stood on low ground, the new village is on high ground."

"And a tall man sees over the head of a small one," she answered, with a scornful laugh.

"Wait, mother of wisdom. If the enemy secured the gates and flooded the valley, which would be safer--the village on low ground, or the village on a hill?"

"Yoh! It is strong medicine." She sat looking at them for some time in silence. "It is only the great one who can make medicine?"

Compton looked thoughtful.

"Come," she said, in a wheedling tone, touching him with a finger, "make medicine for one who carried food to the good white man."

"What would you like to know, mother?"

"Tell me, O son of him who taught us--tell me, O lion's cub--tell me if the chief will find his own kraal."

"That would need strong medicine--very strong."

"Only a little. Consider; it was these hands who carried the good white man water and wood. Only a little word, his son."

"A little word, mother; but it requires much thought, and how can a son make medicine without his father's 'familiar'--the thing he consulted, the thing you promised to bring to me?"

"I will fetch it," said the woman, rising. "In the morning you shall have it;" and she went in the direction of the gorge.

"Seems to me, d.i.c.k, the old lady is at the bottom of this mystery.

You'd better be very careful how you deal with her."

"I want to get my father's book," said Compton.

"Of course you do; but you want to get back the Okapi as well, and if you offend her it may turn out more awkward for us."

"Well, then, suppose we follow her now?" and Compton, always ready to act, jumped up.