The robbery and the outrage at the bungalow had sadly interrupted Mr. Langton's studies. Nearly a month elapsed before the Judge took up his old researches, and then it was that for the first time he discovered that the Sunstone was missing. Search where he might, he could find it nowhere. The evidence was against Jim Braid, and there was no one to speak up on his behalf, for by then Harry Urquhart had returned to school. On the night Braid was wounded, only his coat pockets had been emptied, and, since the whole of the money had been recovered, no further search had been made. The Judge had little doubt in his mind that, as well as the contents of the cash-box, the boy had stolen the Sunstone, though poor Jim could have had no idea as to its value.

Mr. Langton was determined to recover the relic at all costs. He spent a great deal of money on advertisements, and gave a full description of Braid to the police; but no trace of the boy could be found. It was not until Christmas had come, and Harry Urquhart was again at Friar's Court, that the Judge told his nephew of his suspicions.

And though Harry was sure of Braid's innocence, he could not convince the Judge. Mr. Langton's mind was the mind of a lawyer; he based his conclusions upon the testimony of facts, and never allowed his personal opinions to influence him in the least.

Though the police had failed to discover any trace of Braid, Harry was determined to find him. Since he had now left school, he obtained permission from his uncle to go to London. He felt perfectly certain that Braid was somewhere in the great city where it is possible for a man to hide himself from the eyes of the world, even to bury his identity.

In the meantime, Captain von Hardenberg had presented himself before Peter Klein, the informer, and a long interview had taken place between them.

Peter listened to the whole story of the Sunstone, doubted it one moment, believed it the next; and fingered the strange jade ornament, first with reverence, and then almost with suspicion. He examined it through a magnifying-glass, shook his head, shrugged his shoulders, and found it impossible to make up his mind. Von Hardenberg made no secret of the fact that he was determined to undertake a journey through the German colonial territory of the Cameroons to the Caves of Zoroaster, to recover the jewels that were hidden in the vault. With the treasure once in his possession, he swore that he would pay Klein, not only the full amount that was due to him, but ten per cent of the total profits.

Now, Peter Klein was a usurer-as well as a butler and a spy-one who drove a hard bargain, who was relentless to his victims. He said that he himself was tired of cities, that the suspicions of the British police authorities had already been aroused in regard to his occupation, and that therefore he also would like to travel. He would accompany von Hardenberg to the West Coast, which was once called the White-Man's Grave; he would penetrate the bush to the Cameroon peaks, even to the Caves of Zoroaster. But he would require more than ten per cent: they would share and share alike.

Von Hardenberg was in no position to refuse. This man had him in his clutches. Klein knew well that the Prussian was ruined for life if ever his conduct was made known to the departmental heads of the German Secret Service. And, moreover, in a few days Klein had gained the whip hand by enlisting in his services an Arab whom he found starving in the vicinity of the docks.

This man, though he was poor, in rags, and well-nigh perishing in the cold, was learned in many things. Like all his race, he was a nomad-a man who had roamed the world throughout his life, who had even been all-powerful in his day. He had sold ivory in Zanzibar; he had stolen cattle in the neighbourhood of Lake Chad, and driven his capture across the great plains to the east; he had hunted for slaves in the Upper Congo and the Aruwimi. Though he was starving, he boasted that he was a sheik, and said that his name was Bayram. He said he had been to the Cameroons River, and that he despised the Negro from Loango to Zanzibar. He was confident that, provided he was rewarded, he could render invaluable services to his employer. He had never before heard of the Sunstone, but, from rumours he had heard, there was a treasure hidden somewhere in the mist-shrouded mountains that guard Lake Chad to the east.

To return to Jim Braid. All these winter months he wandered the streets of London. He found the greatest difficulty in getting work. He had no trade but that of a gamekeeper, and such business was at a discount in the midst of the great, seething city. He was out of work for some weeks; then he obtained work in the docks; after which he was again unemployed for nearly a month. By that time he had got to the end of his money, and was obliged to pawn his clothes. He thanked Heaven when the snow came; for, though the frost was severe, and his clothes in rags, he saw employment in sweeping the pavements and the roads.

Then the thaw followed, and he was starving again. One night he found himself in Jermyn Street. He had had no food that day. A taxi-cab drew up before a doorway, upon which was a brass plate bearing the name "Peter Klein".

Jim was conscious of the fact that he had heard the name before, he could not remember where. Just then, starvation, ill-health, and the misery in his heart had broken the boy completely; it was as if his senses were numbed. All that interested him was the taxi, by the side of which he remained, in the hope of earning a copper by opening the door. Presently a manservant came from the house, carrying a box. Jim volunteered to help him, and the man agreed. Together they put the box upon the taxi-cab, and Jim noticed that it bore the same name, "Peter Klein", and several steamship labels, upon each of which was written the word "Old Calabar". Jim Braid saw these things like one who is half-dazed, without understanding what they meant.

There were several other boxes to be put on to the cab, and when the work was finished, and the driver had strapped them securely together, two men came from the house, followed by one who wore a turban, and shivered from the cold.

Jim's attention was attracted by the native. He was very tall and thin. He had a great black beard, and his eyes were like those of a bird of prey. They were cruel, bloodshot, and passionate.

One of the Europeans, who wore a fur coat, got into the cab. The other paused with his foot upon the step and looked Jim Braid in the face. Near by a street lamp flared and flickered, and in the light Jim recognized the features of Captain von Hardenberg, the man who had been his accuser.

He stared at him in amazement. He had not the power to speak. He thought, at first, that he, too, would be recognized. He did not know that misfortune had so changed him that his own mother would not have known him. He was thin and haggard-looking; his rags hung loosely upon his gaunt form; his hair was so long that it extended over his ears.

"Are you the man," said von Hardenberg in his old, insolent way, "who helped to carry the boxes?"

"Yes," said Jim, "I am."

"There you are, then. There's sixpence, and don't spend it on drink."

At that the Prussian jumped into the taxi, telling the driver to go to Charing Cross. The Arab followed, closing the door, and a few seconds later the taxi was driving down the street.

Jim Braid stood on the pavement under the street lamp, regarding the sixpence in his hand. He was starving; his bones ached from physical exhaustion; his head throbbed in a kind of fever. He knew not where he would sleep. This sixpence to him was wealth.

For a moment he was tempted, but not for longer. With a quick, spasmodic action he hurled the coin into the gutter, and walked away quickly in the direction of the Haymarket.

He knew not where he was going. The streets were crowded. People were going to the theatre. Outside a fashionable restaurant a lady with a gorgeous opera-cloak brushed against him, and uttered an exclamation of disgust. He walked on more rapidly than before, and came presently to Trafalgar Square, and before he knew where he was he found himself on the Embankment. Slowly he walked up the steps towards the Hungerford footbridge; and there, pausing, with his folded arms upon the rails, he looked down into the water.

At that moment the sound of footsteps attracted his attention. He looked up into a face that he recognized at once. It was that of Harry Urquhart, his only friend, the only person in the world who had believed him innocent.

CHAPTER VI-The Pursuit Begins

"Jim!" cried Harry.

So astonished was he that he reeled backward as though he had been struck.

"My poor, old friend," said Harry. "I have searched for you everywhere, and had almost given up hope of finding you. I don't know what led my footsteps to the bridge."

At that Jim Braid burst into tears.

"It was the work of God," said he.

Harry said nothing, but pressed Jim's arm. At the bottom of Northumberland Avenue he hailed a taxi, and the driver looked somewhat astonished when this ragged pauper got into the cab and seated himself at the side of his well-dressed companion.

Harry had rooms in Davies Street, where he thrust Jim into an arm-chair before the fire, upon which he heaped more coals. Braid, leaning forward, held out his hands before the cheerful blaze. As Harry looked at him, a great feeling of pity arose in his heart. The boy looked so miserable and wretched that he appeared barely to cling to life.

Harry would not allow him to speak, until he had eaten a meal. Braid fell upon his food like a wolf. He had had absolutely nothing to eat for two days.

It is not wise to feed a starving man to repletion. But perhaps in Braid's case this made little or no difference, since the boy was on the verge of double pneumonia. Within twenty-four hours he was in a raging fever, and for days afterwards the doctor despaired of saving his life. Starvation, cold, dirt, to say nothing of his wound, had done their work; but a strong heart and youth pulled him through.

It was nearly three months afterwards, when the spring was well advanced, that one afternoon the two friends talked the whole matter out.

Harry looked at Jim Braid and smiled.

"You're a different fellow now," said he. "It was a near thing though. One night the doctor gave you up. He actually left the house believing you were dead."

Jim tried to thank his benefactor, but his heart was too full to speak.

"Come," said Harry, "tell me what has happened since you left Friar's Court."

"There is nothing to tell," said the other. "I tramped to London, sometimes sleeping in the open air, sometimes-when the weather was bad-lodging at wayside inns. At first, I was glad to get here. In a great city like this I felt I could not be recognized and pointed out as a thief. Oh," he burst forth, "you know that I am innocent!"

"I was always sure of it," said Harry. "I can't think how my uncle can believe you guilty."

"Everything was against me," said Jim. "That man, to shield himself, laid a trap for me from which I could not escape. Had I known why he went to the bungalow that night, my story might have been believed."

"I know why he went," said Harry. "I am sure of it. It was to steal the Sunstone."

"The Sunstone!" said Braid. "What's that?"

"It is a very valuable relic that originally came from Persia. No one knows of its value but my uncle, von Hardenberg, and myself. There can be no doubt that my cousin took it."

Jim Braid sighed.

"I could not prove my innocence," said he.

"Jim, old friend," said Harry, "I promise you shall not remain under this cloud for the rest of your life. I know my cousin to be guilty; I will not rest until I have proved him to be so. He has the Sunstone in his possession, and I intend to do my best to recover it!"

"You will not succeed," said the other, shaking his head.

"Why not?"

"Because he left England weeks ago."

"Left England!" echoed the other.

"Yes. He went away with a man called Peter Klein and a native who wore a turban. They took the boat train from Charing Cross. It was I who carried their boxes on to the taxi. They were going to Old Calabar."

"The West Coast!" cried Harry, jumping to his feet.

Braid was as mystified as ever. Before he knew what was happening, Harry had seized him by the shoulders, and was shaking him as a terrier shakes a rat.

"Don't you see," cried Urquhart, "your innocence is practically proved already. If they have not got the Sunstone, why should they want to go to Africa? They are after the treasure of which the Sunstone is the key. I don't know who the native is, but he is probably some interpreter or guide whom they have hired for the journey. Jim, when my uncle hears of this, I promise you he will take a very different view of the question."

"Then," said Braid, "has this Sunstone got something to do with Africa?"

"Everything!" exclaimed the other. "Here, in Europe, it is valueless; but in certain caves which are situated upon the watershed on the southern side of the Sahara, the thing is worth thousands of pounds. To-morrow morning I will return to my uncle, to Friar's Court, and tell him what you have told me. I will ask him to allow me to follow von Hardenberg to the West Coast, to keep upon his tracks, to run him to ground and accuse him to his face. You will come with me. My uncle will supply us with funds. He would be willing to spend his entire fortune in order to recover the Sunstone."

Harry was so excited that he could scarcely talk coherently. He paced up and down the little sitting-room-three steps this way and three steps that-and every now and again laid his hands upon Jim Braid and shook him violently to emphasize his words.

When Jim awoke the following morning, he was informed that Mr. Urquhart had left early to go back to Friar's Court. He had promised to return the following day. In the meantime, Harry had given instructions that his landlady was to look after his guest. If he wanted anything, he had only to ring the bell.

On the afternoon of the second day Harry returned to London.

"My uncle," he explained, "is inclined to withdraw his verdict, though he will not say openly that he has been guilty of a great injustice. In any case he intends to do everything in his power to get the Sunstone back. He has given me leave to fit out an expedition. Preparations, however, will take some little time. I am to be supplied with letters of introduction to several influential persons on the West Coast. He even said he would come with us himself, were it not that his strength is failing, and he feels he is getting old. Jim, there's hope yet, my lad. You and I together will see this matter through."

Braid held out his hand.

"I can't thank you sufficiently, sir," said he, "for what you have done! You have saved my life twice, and now you mean to save my reputation."

"Don't speak of it," said Harry. "You and I have a great task in front of us; we must stick to each other through thick and thin. I am impatient to be off."

And he had more need of his patience than he thought; for, before they could start upon their journey, war descended upon Europe like a thunderbolt, finding England wholly unprepared.

It was not so with the Germans. Peter Klein and birds of a like feather had been employed for years in every country liable to prove hostile to the Fatherland. Germany had for long intended war, and these rascals-paid in proportion to the information they obtained-were living by the score under the protection of the British flag, within sound of Big Ben, in every colony, dependency, and dominion. Moreover, it has since been proved that the great German Empire did not scruple to employ even her consular and diplomatic servants either as spies themselves or as agents for the purpose of engaging and rewarding informers.

Small wonder, when preparations had been so complete, that Germany had the whip hand at the start, that Belgium, Poland, and Serbia were overrun, and Paris herself saved only at the eleventh hour.

During those early, anxious days, Harry Urquhart was in two minds what to do. He was wishful to serve his country, and could without difficulty have secured a commission within a few weeks of the declaration of war. Braid was also willing to enlist. On talking the matter out, however, with Mr. Langton, it was decided that the quest of the Sunstone was as patriotic a cause as any man could wish for; since, if von Hardenberg succeeded in reaching the Caves of Zoroaster, the wealth that they contained would ultimately find its way to the Fatherland.

But, since there was fighting both in Togoland and the Cameroons, their departure had to be postponed whilst Mr. Langton obtained permission from the War Office authorities for his two protégés to visit the West African scene of operations. All this took time; and it was not until the beginning of October that young Urquhart and Jim Braid found themselves sitting together in a first-class railway compartment on their way to Southampton.

A few hours afterwards, on a dark windy night, they were on board a ship that rolled and pitched upon its way to Ushant. The Lizard light flashed good-bye from England, and the dark sea, as they knew quite well, contained hidden dangers in the shape of submarines and mines, but the quest of the Sunstone had begun.

CHAPTER VII-Into the Bush

They experienced rough weather in the Bay of Biscay, where the ship pitched and rolled in a confused sea, and the wind howled round Finisterre, which was wrapped in an impenetrable fog.

Two days afterwards they found the blue waters that bound the Morocco coast, after which the heat became excessive.

The ship was bound first for Sierra Leone, and thence to Old Calabar, from which place they intended to strike inland through the bush, after engaging the services of a party of Kru boys to act as carriers.

On these still tropic seas, dazzling in the sunshine, there was no sign of war, except an occasional torpedo-boat destroyer which flew past them at a speed of thirty knots an hour.

At Sierra Leone, Harry betook himself to a certain gentleman holding an influential position in the Civil Service, to whom he had a letter of introduction from his uncle, and who received the boy with courtesy and kindness. It was from that Harry learned that the Germans had been driven back in Togoland, and that active operations were in progress in the valley of the Cameroon River. He himself had travelled far in the interior; and in consequence he was able to give the boy invaluable advice concerning the kit and equipment he would need to take with him upon his expedition. He advised him to strike into the bush from Old Calabar, where he could procure servants and guides; if he went to Victoria he would find his hands tied by those in command of the Expeditionary Force, who had no liking for civilians at the front.

"All the same," he added, "I strongly advise you not to endeavour to enter Maziriland."

Harry smiled.

"I am afraid, sir," said he, "I have no option. My duty takes me there."

"Of course," said the other, "I don't know what this duty may be, but I tell you frankly the country is by no means safe. All the natives are in arms, some purchased by rum by the Germans, others loyal to us. In the old days the Cameroon kings implored the British Government to take the country under its protection. In their own words, they wanted English laws. But the Government took no notice of them until it was too late, until the Germans had forestalled us and taken possession of the country, by buying over the chiefs. If you go into the bush, you run into a thousand dangers: yellow fever, malaria, even starvation, and the natives you encounter may sell you as prisoners to the Germans. Some of them will do anything for drink."

Harry explained that he was prepared to take the gravest risks, since the object of his journey was of more than vital importance, and shortly afterwards took his leave, returning to the ship.

They had brought with them all they needed in the way of provisions, clothing, arms and ammunition; and at Old Calabar they purchased a canoe and engaged the services of six stalwart Kru boys. Harry's idea was to travel up-river, crossing the Cameroon frontier west of Bamenda, and thence striking inland towards the mountains in northern German territory, beyond which the Caves of Zoroaster were said to be. They also interviewed an interpreter, a half-caste Spaniard from Fernando Po, who assured them he could speak every native dialect of the Hinterland, from Lagos to the Congo, as well as English and German. This proved to be no exaggeration. Urquhart was assured that the man was indeed a wonderful linguist, and, moreover, that he could be trusted implicitly as a guide-the more so since he hated the Germans, who had destroyed his 'factory' to make room for a house for a Prussian Governor, who had hoped to rule the West Coast native with the iron discipline of Potsdam.

This man-who called himself "Fernando" after the place of his birth-said that he would never venture across the Cameroons to Maziriland unless his brother was engaged to come with him.

He explained that this brother of his was younger and more agile than himself. Before they became traders they had been hunters, in the old days when the West Coast was practically unexplored, and they had worked together hand-in-glove.

Accordingly, it was agreed that both brothers should join the expedition; and when they presented themselves before Harry Urquhart, the young Englishman could hardly refrain from smiling at their personal appearance.

They were plainly half-castes, and, like most such, considered themselves Europeans, though neither had ever set eyes upon the northern continent. Though they were almost as black of skin as a Kru boy, they wore large pith helmets, suits of white ducks and blue puttees, being dressed to a button exactly the same. Both wore brown leather belts from which depended revolver holsters and cartridge pouches. The one was robust, wrinkled, broad of chest, and upright; the other, stooping, tall, and abnormally thin. There was a business-like air about them both that appealed to Harry; and this favourable impression was by no means dispelled when the brothers, in quite tolerable English, raved against the Germans, who, they swore, had bought the Cameroons with rum, in order to manage the country to their own profit without regard to the welfare of the natives. It was owing to the German occupation of the Cameroons that Fernando and his brother-who went by the name of Cortes-had been ruined by the State-aided German factories that had sprung up as if by magic in the early 'nineties. Later, they had been accused of inciting the natives to rebellion, heavily fined, and banished from the country.

This increase in numbers necessitated the purchase of a second canoe. Before leaving Calabar they supplemented their commissariat with a new supply of provisions; and, a few days after, it was a small but well-equipped and dauntless expedition that set forth up-river in the sweltering heat, making straight for the heart of the great West African bush and the very stronghold of the enemy's position.