Cala cala_, as they say, seven brothers lived near the creek of the Green One. It was not called the creek of the Green One in those far-off days, for the monstrous thing had no existence.

And the seven brothers had seven wives who were sisters, and it would appear from the legend that these seven wives were unfaithful to their husbands, and upon a certain night in the full of the moon, the brothers returning from an expedition into the forest, discovered the extent of their infamy, and they tied the sisters together, the wrists of one to the ankles of the other, and they led them to the stream, and no sooner had they disappeared beneath the black waters than there was almighty splashing and bubbling of water, and there came crawling from the place where the unfaithful wives had sunk so terrible a monster that the seven brothers fled in fear.

This was the Green One, with his long ugly snout, cold, vicious eyes, and his great clawed feet. Some say that these women had been changed by magic into the Crocodile of the Pool, and many people believe this and speak of the Green One in the plural.

Certain it is, that this terrible crocodile lived through the ages--none hunting her, she was left in indisputable possession of the flat sand-bank wherein to lay her eggs, and ranged the sandy shore of the creek undisturbed.

She was regarded with awe; sacrifices, living and dead, were offered to her from time to time, and sometimes a cripple or two was knocked on the head and left by the water's edge for her pleasure. She was indeed a veritable scavenger of crime for the neighbouring villages about, and earned some sort of respect, for, as the saying went:

"Sandi does not speak the language of the Green One."

Sometimes M'zooba would go afield, leaving the quietude of the creek and the pool, which was her own territory, for the more adventurous life of the river, and here one day she lay, the whole of her body submerged and only her wicked eyes within an eighth of an inch of the water's surface, when a timorous young roebuck came picking a cautious way through the forest across the open plantations to the water's edge. He stopped from time to time apprehensively, trembling in every limb at the slightest sound, looking this way and that, then taking a few more steps and again searching the cruel world for danger before he reached the water's edge.

Then, after a final look round, he lowered his soft muzzle to the cool waters. Swift as lightning the Green One flashed her long snout out of the water, and gripped the tender head of the buck. Ruthlessly she pulled, dragging the struggling deer after her till first its neck and then its shoulders, then finally the last frantic waving stump of its white tail went under the dark waters.

Out in midstream a white little boat was moving steadily up the river and on the awning-shaded bridge an indignant young man witnessed the tragedy. The Green One had her larder under a large shelving rock half a dozen feet beneath the water. Into this cavity her long hard nose flung her dead victim, and her four powerful hands covered the entrance to the water cave with sand and rock. More than satisfied with her morning's work, the Green One came to the surface of the water to bask in the glowing warmth of the morning sunlight.

She took a survey upon the world, made up of low-lying shores and a hot blue sky. She saw a river, broad and oily, and a strange white object which she had seen often before smoking towards her.

And that was the last thing she ever saw; for Bones, on the bridge of the _Zaire_, squinted along the sights of his Express and pressed the trigger. Struck in the head by an explosive bullet, the Green One went out in a flurry of stormy water.

"Thus perish all rotten old crocodiles," said Bones, immensely pleased with himself, and he placed the rifle on the rack.

"What the devil are you shooting at, so early in the morning?" asked Hamilton.

He came out in his pyjamas, sun helmet on his head, pliant mosquito boots reaching to his knees.

"A crocodile, sir," said Bones.

"Why waste good ammunition on crocodiles?" asked Hamilton; "was it something exceptional?"

"A tremendous chap, sir," said the enthusiastic Bones, "some fifty feet long, and as green as----"

"As green!" repeated Hamilton quickly, "where are we?"

He looked with a swift glance along the shore for landmarks.

"I hope to goodness you have not shot old M'zooba," he said.

"I don't know your friend by name," said Bones, "but why shouldn't I shoot him?"

"Because, you silly ass," said Hamilton, "she is a sort of sacred crocodile."

"She was never so sacred as she is now, sir, for:

"She's flapping her wings in the crocodile heaven," said Bones, flippantly; "for I'm one of those dead shots--once I draw a bead on an animal----"

"Get out a canoe and set the woodmen to dive for the Green One," said Hamilton to his orderly, for a shot crocodile invariably sinks to the bottom and can only be recovered by diving.

They brought it to the surface, and Hamilton groaned.

"It is M'zooba," he said in resigned exasperation. "Oh, Bones, what an ass you are!"

Bones said nothing, but walked to the stern of the ship and lowered the blue ensign to half-mast--a piece of impertinence which Hamilton did not discover till a long time afterwards.

Now whatever might be the desire or wish of Hamilton, and however much he might on ordinary occasions depend upon the loyalty of his warders and his men, in this matter of the green crocodile he was entirely at their mercy, for he could not call them together asking them to speak no death of the Green One without magnifying the importance of Lieutenant Tibbetts' rash act. The only attitude he could adopt was to treat the Green One and her untimely end as something which was in the day's work neither to be lamented nor acclaimed, and when, at the first village, a doleful deputation, comprising a worried chief and a sulky witch doctor, called upon him to bemoan the tragedy, he treated the matter with great joviality.

"For what is a crocodile more or less in this river?" he asked.

"Lord, this was no crocodile," said the witch doctor, "but a very reverend ghost, and it has been our Ju-ju for many years, bringing us good crops and fair weather for our goodness, and has eaten up all the devils and sickness which came to our villages. Now it is gone nothing but ill fortune can come to us."

"Bugobo," said Hamilton, "you talk like a foolish one, for how may a crocodile who does not leave the water, and moreover is evil and old, a stealer of women and children and dangerous to your goats, how can this thing bring good fortune to any people?"

"How can the river run, lord?" replied the man, "and yet it does."

Hamilton thought for a moment.

"Now I tell you this, and you shall say to all people who ask you, that by my magic I will bring another green one to this stream, greater and larger than the one who has gone, and she shall be ju-ju for all men."

"And now," he said to Bones, when the deputation had left, "it is up to you to go out and find a nice, respectable crocodile to take the place of the lady you have so light-heartedly destroyed."

Bones gasped.

"Dear old feller," he said feebly, "the habits and customs of fauna of this land are entirely beyond me. I will fetch you a crocodile, sir, with the greatest of pleasure, although as far as I know there is nothing laid down in the King's regulations of the warrants for pay and promotion defining the catching of crocodiles as part of an officer's duty."

Hamilton made no further move towards replacing the lost Spirit of the Pool until he learnt that his offer had been taken very seriously, and that the coming of the great new Green One to the pool, was a subject of discussion up and down the river.

Now here is a fact which official records go to substantiate. Although the "Reports of the Territories" take no cognizance of ghosts and spirits and other occult influence, dealing rather with such mundane facts as the condition of crops and the discipline of the races, yet the reports of that particular year in this one district made gloomy reading both for Hamilton and for the Administrator in his far-off stone house.

Though the crops throughout the whole of the country were good that Hamilton was apprehensive about the consequences--for men fight better with a full larder behind them--yet in this immediate neighbourhood of the pool, within its sphere of influence, so to speak, the crops failed miserably, and the fish which haunt the shallow stream beneath the big stream near the channel took it into their silly heads to migrate to other distant waters. Here, then, was the consequence of Bones' murder demonstrated to a most alarming extent. There was a blight in the potatoes; the maize crop, for some unaccountable reason, was a meagre one; there were three unexpected cases of sleeping sickness followed by madness in an interior village, and, crowning disaster of all, one of those sudden storms which sweep across the river came upon the village, and lightning struck the huts.

"My son," said Hamilton, when they brought the news to him, "you have got to go out and find a green crocodile, quick."

So Bones went up the river with the naphtha launch, leaving to Hamilton the delicate task of finding a natural explanation for all the horrors which had come upon the unfortunate people.

Green crocodiles are rare even on the great river which had half a million other kinds of crocodiles to its credit, for green is both a sign of age, and by common report indicative of cannibalistic tendencies.

In whatever veneration the Green One of the Pool might be held, such respect did not extend to other parts of the river, where the green ones were sought out and slain in their early youth. Bones spent an exciting seven days chasing, lassoing and, at tunes in self-defence, shooting at great reptiles without getting any nearer to the object of his search.

"Ahmet," said he, in despair, "it seems that there are no green crocodiles on this river."

"Lord, there are very few," admitted the man; "for the people kill green crocodiles owing to their evil influence."

At every village there was news for Bones which lightened his heart. Some one had seen such a monster, it lived in a pool or lorded some creek, generally only get-at-able in a canoe; and here Bones, with his Houssas, would wait smoking furiously, with baited lines cunningly laid from thick underbrush or some tethered goat, bleating invitingly on the banks. But never once did the hunter catch so much as a glimpse of green. There were yellow crocodiles, grey crocodiles, crocodiles the colour of the sand, or the dark brown bed of the river, b............