WHEN Harry Johnston was appointed Her Majesty's Commissioner for British Central Africa his instructions were to suppress the slave trade by every legitimate means in his power.

The complexity of his task is best described in his own words, in a report to the Foreign Office dated November 24, 1891: "I feel bound to make our Protectorate in Nyasaland a reality to the unfortunate mass of the people who are robbed, raided and carried into captivity to satisfy the greed and lust of bloodshed prevailing among a few chiefs of the Yao race which is being unceasingly incited to engage in internecine war or slave raiding forays by the Arab and Swahili slave traders who travel between Nyasaland and the German and Portuguese littoral.

"Wherever it is possible by peaceable means to induce a chief to renounce the slave trade I have done so, and a considerable number of the lesser potentates have been brought to agree to give up adjusting their internecine quarrels by resort to arms, to cease selling their subjects into slavery and to close their territories to the passage of slave caravans. Their agreement, however, was in most cases a sullen one and their eyes were turned to the nearest big chief to see how he was dealt with. If he also accepted the gospel of peace and goodwill towards men they were ready enough to co-operate; but if the powerful potentate - the champion man of war of the district - held aloof and preserved a watchful or menacing attitude towards the Administration by ignoring or rejecting our proposals for a friendly understanding, then the little chiefs began to relax in their good behaviour and once more to capture and sell their neighbours' subjects or to allow the coast caravans with their troops of slaves bound for Kilwa, Ibo or Quilimane to pass through.

"Consequently I soon realized that certain notabilities in Nyasa- land would have to be compelled to give up the slave trade before our Protectorate could become a reality."

To assist him in this formidable task Johnston had a small force of seventy-one Indian soldiers from the 32nd and 23rd Sikh regiments and the Hyderabad Lancers, who had been seconded from the Indian Army for a three-year tour of service, and ten Swahili police. The force was commanded by Captain Cecil Maguire of the Indian Army, brother of the Rochefort Maguire who had helped Rudd to negotiate the Concession from Lobengula. Its armament consisted of Snider rifles, two 9-pounder and one 7-pounder cannon, and a Maxim gun. The cost of maintaining this force, up to a maximum of 10,000, was borne by the British South Africa Company. Cecil Rhodes, in pursuit of his dream for an all-red route from the Cape to Cairo, was as anxious as Johnston to bring peace to Nyasaland.

The first "notability" to receive attention was the Yao chief, Chikumbu, who for some years had been raiding the mission caravans between Blantyre and the Upper Shirè and had now settled down on Mount Mlanje to a steady career of slave trading. Chikumbu and his people were aliens from the north who had imposed themselves on the local people, and the principal local chief, Chipoka, had sought the Queen's protection to prevent his country from being completely dominated by the Yaos. Chikumbu, however, was not concerned. Europeans passing through his territory were maltreated and robbed and one Englishman, named Pidder, who could not afford to pay the "present" demanded by Chikumbu, was flogged and put in the stocks. Mr. Fred Moir of the African Lakes Corporation gathered a force of Europeans and natives and marched to Bidder's rescue, but came to a halt when Chikumbu threatened that unless they did so he would cut Pidder's head off. Fortunately, with the help of some friendly natives, Pidder managed to free himself and escape.

Chikumbu then began to threaten the lives of some British planters who with his permission had settled in or near his territory, and their position became critical. Johnston sent Maguire with a force of fifty Sikhs to teach Chikumbu a lesson, and they reached his town on July 21. They were repeatedly attacked by the Yaos and during the fighting the Church of Scotland mission house was burnt down. The next day, however, Maguire captured Chikumbu's town and defeated his forces. A large number of slaves found in the town were released. The chief was badly wounded in the fighting and disappeared. His people were told that they could return to their homes provided they undertook to keep the peace, and in the absence of Chikumbu they settled down quietly. The missionaries rebuilt their house and extended their work among them, and more European settlers acquired estates for the cultivation of coffee.

Johnston was all in favour of European settlement. "While encouraging the advent of European enterprise and capital in these undeveloped lands, too long abandoned to the slave raids and the devastation of internecine wars," he wrote, "I have taken ample precautions to safeguard native interests and to secure to the natives not only the land they now occupy but sufficient reserves of territory to meet that increase in their population which will, I trust, be found to follow the establishment of peace and security for their persons and property."

Johnston next turned his attention to the slave raiders in the vicinity of Lake Nyasa and Lake Shirwa. Here again the Yao chiefs were the culprits, encouraged by the Arab and Swahili ivory merchants wanting slave porters. The principal villain in this region was Makanjira, who had repeatedly carried off boats from the Universities Mission stations on the east shore of Lake Nyasa and on one occasion had murdered a native boatman employed by the Mission. These depredations had to stop, and there was also the little matter of the flogging of Mr. Buchanan two years before. Makanjira had been quite unrepentent and had ignored Johnston's demand for ten tusks of ivory as a fine for the insult to Her Majesty's Acting Consul. Makanjira had to be taught a lesson.

Setting out from Zomba at the end of September, 1890, with the Indian contingent of the British Central Africa Police, Johnston decided to take action against Mponda, a powerful Yao chief on the Upper Shirè, whose district was on the way to Makanjira's. Mponda was fond of raiding his neighbours and selling them as slaves. When the little force marched through Liwonde's area they received a cool reception, for it lay on one of the great slave routes of Africa - from the Angoni country west of the Shirè and Lake Nyasa and through the territories of Liwonde and Kawinga where they crossed the Shirè and then round the northern and southern ends of Lake Shirwa and so to the coast. Liwonde's country was full of Arabs and coast people connected with the slave trade, and they resented the advent of a force that threatened their way of life. Liwonde was like putty in their hands. He would have been a good type of native chief had it not been for his taste for pombe, the heady native beer made from millet and maize.

Johnston was not concerned with Liwonde, however, and marched up the west bank of the Shirè until he came opposite Mponda's town, about a mile in length, and about three miles below Lake Nyasa. One of the reasons for Johnston's desire to deal with Mponda was that a local chief, Chikusi, had appealed to him for protection against the slave raider. As a gesture of defiance Mponda had beheaded fourteen of Chikusi's people who had not been sold to the slavers and had stuck their heads on posts round his stockade, which was already decorated with the skulls of at least a hundred other victims. When Captain Maguire visited the town the day after their arrival the blood of Chikusi's people still stained the ground.

Johnston's arrival had caught Mponda unprepared. The chief immediately began mustering his forces, but the work of mobilization went slowly. In the meantime Johnston and his force were busy fortifying their position. Captain Maguire designed a fort and in six days Fort Johnston was established. It was a circular redoubt with an internal diameter of ninety feet. The centre was occupied by a low circular house used as a provision store and cooking place. The magazine, on the side nearest the river, was dug partly underground and protected by a strong platform of earth heaped over a stout wooden framework. On this platform, which was about eight feet above the level of the fort, a sentry was stationed day and night, looking over the immense stretch of flat plain towards Lake Nyasa. The fort was defended by a rampart of bamboo and sand, surrounded by a deep ditch. It was a secure position.

But trouble suddenly faced Johnston from another direction. A slave caravan bound for Kilwa had recently arrived in Southern Nyasaland and had rested at Makanjira's for some days before being ferried across the Shirè to Mponda's in one of Makanjira's dhows. The dhow had been caught in the act by the Universities Mission steamer, Charles Janson, who reported the incident to Johnston. A Yao chief, Chindamba, who had called upon Johnston to mediate between him and Mponda, changed his attitude. Like other local chiefs he wanted to sell all the slaves he could lay hands on while the Kilwa traders were in the area in return for cotton goods and gunpowder, and he resented Johnston's obvious intention to upset the trade. When Johnston sent two Swahili police to him with a message he imprisoned both of them. To prevent a league of hostile Yao chiefs being formed against him, Johnston decided to punish Chindamba immediately and sent Maguire and a force of sepoys and Zanzibaris to free the two Swahili. They succeeded, and then drove Chindamba's people into the hills and destroyed part of his town.

Mponda's reaction was typically African. As soon as he knew that the police had attacked Chindamba, he gathered all his canoes and ferried a force of some two thousand men across the Shirè. Johnston thought, logically, that Mponda was about to attack his depleted force, but instead Mponda had welcomed the opportunity to deal his old enemy, Chindamba, a crushing blow. Since most of the latter's men were in the hills they had no difficulty in capturing the women and children in the outlying villages, and started taking them back across the Shirè to be sold as slaves.

Mponda crossed the river to congratulate his men and Johnston remonstrated with him, demanding that the women and children be released at once. Mponda found himself in a quandary. His men were flushed with success and he had no control over them, and at the same time he was in no position to defy the Commissioner. He asked for three days' grace. "When my men are drunk with pombe I will take the slaves away and send them to you," he promised Johnston. The three days passed with no sign of the captives being surrendered. Johnston issued an ultimatum that unless the slaves were delivered by nine o'clock that evening he would attack the town. At nine o'clock he waited another hour, and then gave the order to fire. Captain Maguire fired incendiary shells from the 7-pounder and set most of Mponda's town on fire. Early next morning the sepoys crossed the river, drove the Yaos out of town and destroyed the stockades.

On October 22 Mponda handed over Chindamba's people and also a large number of Angoni and other slaves who were to have been sold to the Kilwa traders. Three days later he came over to Fort Johnston and signed a treaty abolishing the slave trade in his territory. Chindamba and a number of other chiefs followed his example, promising to amend their ways and to support the efforts of the Administration to maintain law and order.

Captain Maguire pursued the Kilwa traders, captured seven of them and released 165 slaves. He took the slave sticks off the women, put them on to the slavers' necks and marched them back to Fort Johnston. Altogether the slaves rescued from the caravan and released at Mponda's numbered 268. Some of them had come from the Luangwa Valley, nearly three hundred miles to the west.

Mponda's troubles were not yet over. The seven Kilwa traders managed to escape and made their way to Makanjira, who was furious when he learnt that Mponda had decided to tread the path of virtue. He threatened that unless he renewed his war against the British he would descend on him with five dhows.

Johnston decided to settle accounts with Makanjira. On October 28 he embarked his force on the African Lakes Corporation steamer, Domira, to sail up the Shirè and attack Makanjira's town the following afternoon. It extended for over a mile along the shore and had a population of six thousand. "It consists of the best houses we have met with in this part of Africa," wrote Johnston, "owing to the large number of slave traders and foreigners connected with the trade who have settled here because Makanjira's dhows give him a monopoly of the transport of slaves across the southern end of Lake Nyasa".

Makanjira's men opened fire on the steamer as soon as it approached the shore, and Maguire replied with incendiary shells from the 7-pounder which set the town alight in four places. Johnston and thirty-four sepoys boarded the barge which had been towed behind the steamer and landed on the west side of the town while Maguire bombarded the eastern side. When it became too dark to serve the gun Maguire landed in the Domira's boat with six men and made straight for two guns in the hands of the slavers. He captured them and before withdrawing set fire to a new dhow that was almost ready for launching. Next day Maguire renewed his attack on the town, defeated the Yaos in a pitch battle, saw to it that the town was completely burnt to the ground and also destroyed another two dhows, all for the loss of three men severely wounded.

Another notorious slave trader was Kawinga, a powerful Yao chief who lived on the north-west shore of Lake Shirwa and commanded an important slave route to the coast. In 1889 he was reputed to have sent as many as a thousand slaves to the markets at Kilwa and Quilimane. He had signed a treaty with John Buchanan when he was Acting Consul (before Johnston's arrival) putting his territory under British protection and promising to give up slavery. But he had slipped back into his old ways. Johnston sent Buchanan to see him with an escort of Captain Maguire and thirty sepoys. They were attacked by a subsidiary headman and there were casualties on both sides, but they destroyed the headman's village and Buchanan made it clear to Kawinga that he meant business. Kawinga was duly repentent and paid a fine of five tusks. In return Johnston sent him wheat, oats and barley and twelve different kinds of vegetable seeds and urged him to go in for agriculture.

Reporting to the Foreign Secretary on the results of four months' continuous campaigning against the slavers in Southern Nyasaland (up to November, 1890), Johnston was inclined to be prematurely jubilant. "It will soon become patent to the unscrupulous rascals of the East African littoral, from Kilwa to Quilimane, that slave trading in the Shirè province is a dangerous and unprofitable pursuit. We have also brought the powerful Yao chiefs to accept British domination, except the irreconcilable Makanjira who will probably remain an implacable but I hope impotent foe for the rest of his days. But appearances tend to show that there will be important defections from his rule and it is not unlikely that in time his own people may eject him from power when they find friendship with the British more profitable than enmity."

Johnston had by no means finished with Makanjira. The stage was set for tragedy.

Soon after Johnston and Maguire had returned to Zomba they received news that Makanjira was planning to attack the garrison at Fort Johnston. They took the threat seriously and decided to reinforce the garrison, complete the defence works and replenish the ammunition supplies. Maguire insisted on starting immediately to finish the work before Christmas.

When he reached Fort Johnston Maguire received word from a Yao chief, Kazembe, who had promised to do all he could to stop the slave trading, that he had detained a slave caravan of one of Makanjira's raiders, Saidi Mwazungu, a Swahili half-caste from Kilwa, and would hand it over to the British. But Maguire must first destroy two of Makanjira's dhows which were preparing to attack him for helping the Administration. Maguire at once set off with thirty sepoys and six Zanzibaris, accompanied by the Parsee surgeon to the Indian contingent, Dr. Boyce.

With a guide provided by Kazembe to show them where the dhows were hidden, the force crossed the Lake in the Domira to a point on the south-east shore about ten miles north of Makanjira's main town which had been destroyed at the end of October. The approach to the shore was a twisting channel between rocks and sandbanks. A wind sprang up and the waves became alarmingly rough. Maguire could see the dhows and was determined that they should not be left unscathed. He ordered his troops into the Domira's barge and made for the shore, but it was driven on to a sandbank. Maguire and his men jumped out and waded for some distance to the dhows, which were in a sheltered cove. They were hotly attacked by Makanjira's men hidden among the rocks and reeds of the shoreline, but pressed on to the dhows. One was set on fire and the other badly damaged before Maguire, seeing a large force of Makanjira's men streaming down to the beach, called off the attack and waded back to the barge. But in their absence the barge had been lifted off the sandbank by the storm and dashed to pieces on the rocks.

All this time Maguire and his men were exposed to a continuous hail of bullets from the shore, and three sepoys were killed. Maguire signalled to the Domira to launch the dinghy and although it was repeatedly swamped he managed to get most of his force on board. He and the rest started to wade out to the steamer. They were about ten yards from it, and in deep water, when, just as Maguire reached out to grasp a rope thrown to him by the ship's engineer, MacEwan, a bullet struck him in the head and killed him instantly.

MacEwan and eight of the sepoys tried to reach his body. But the worsening storm increased to gale force and they had to give all their attention to the ship. The Domira, was torn from her anchorage and driven on to a sandbank near the shore. At this point the rope that had been thrown to Maguire wound itself round the propeller and stopped the engines. The vessel drifted into shallow water and was swept by a fierce fire from the beach at short range. The sepoys put up a barricade of bags and bolts of cloth on the landward side of the ship and this gave them a little protection. The captain, Mr. Keiller, was severely wounded in the head on the first day. On the second day MacEwan was wounded in the thigh and the second engineer, Urquhart, in the face.

The Domira lay in this terrible predicament for six days, from December 15 to 20, and all the time those on board were exposed to fire from the beach. On the morning of the 18th their attackers proposed a truce and offered, in return for sixty lengths of calico, to send sixty men to help get the steamer off its sandbank. But they insisted that two of the white men should first come ashore to draw up a peace agreement.

Dr. Boyce at once offered to go. After the day of the storm the waves had washed Maguire's body on to the beach and there it had lain exposed for five days, with near it the bodies of the three sepoys who had been killed. Boyce had a strong personal regard for Maguire and wanted to give him a decent burial. MacEwan agreed to go with him in spite of his wounded thigh, and they went ashore with an escort of three Swahili police and three Anyanja steamer boys. They were taken to a house where they understood the negotiations were to be held, and there they waited for over an hour. Messengers had been sent to Makanjira to tell him that the deputation was waiting to see him. They returned with the order that the whole party was to be killed, and it was carried out at once. MacEwan was shot in three places and Dr. Boyce, the three Swahili police and two of the steamer boys were speared to death. The third steamer boy managed to escape and hide in dense reeds on the shore until he was able to wade out to the Domira and tell them of the massacre.

The two remaining Europeans, Keiller and Urquhart, knew that their survival depended entirely on their own exertions. During the next two nights, with the aid of the sepoys and Swahilis on board, they toiled unceasingly to get the steamer off the sandbank by digging under her keel and laying out anchors. On the night of the 20th the Domira floated off the bank into deep water. They quickly got up steam. As they drew away from that terrible shore the Indian gunners loaded the 7-pounder with an incendiary shell, took careful aim at the nearby village where Makanjira's men were noisily celebrating, and put the shell in their midst. The rejoicings abruptly ended.

The loss of Captain Maguire was a heavy blow to the Commissioner. He thought very highly of him, both as an officer of considerable ability and as a man of character and charm. Johnston named a point on the south-east coast of Lake Nyasa near the Portuguese border, Fort Maguire in his memory.

His death was not in vain. It induced the Foreign Office to prevail upon the Admiralty to provide three gunboats for service on the Upper Shirè and on Lake Nyasa to deal with the slave dhows. They arrived in 1892 and worked in co-operation with a steamer that had also been placed on the lake by the German Anti-Slavery Society and was called the "Hermann von Wissman" after the leader of the German expedition. These measures were effective in checking the immense traffic in slaves from the regions west of the Lake, and particularly along the middle course of the Luangwa River which Johnston estimated provided the slavers with more than two thousand victims every year. The ships made it difficult for them to be ferried across the Lake in dhows, and the establishment of Fort Johnston at the southern end of the Lake closed the route through Mponda's country.

But there was plenty of trouble elsewhere. Travellers on the road from Blantyre to Zomba were liable to robbery at the hands of the Yaos living in the vicinity of Chiradzulu, and no one was safe on the route through Mlanje Mountain to Portuguese territory and the east coast. The establishment of Fort Lister at the northern and Fort Anderson at the southern end of the range curbed their activities, but it took some time to convince the Yao chiefs in this region that crime did not pay. The Yaos on the Upper Shirè, inspired and led by Liwonde, were another thorn in the Commissioner's flesh. In the campaign against him the plucky little "Domira" again found herself in an unenviable position when she went aground in the Shirè opposite one of Liwonde's towns and the crew was trapped in the fire between defenders and attackers. The arrival of reinforcements for the Administration's forces relieved the position and Liwonde's capital town was captured and burnt down. The chief himself escaped, however, and he gave occasional trouble for the next few years.

The original contingent of Indian soldiers who had given valiant service returned to their homeland at the end of their three-year period and were replaced during 1893 by two hundred Sikhs. At the same time the Zanzibaris who had formed part of the police force were disbanded and replaced by Atonga from West Nyasa and Makua tribesmen from Portuguese East Africa. As time went on Johnston recruited more and more natives from the recognized fighting tribes as these became pacified to assist him preserve law and order.

The main trouble spot during 1893 was Kota Kota, on the western shore of Lake Nyasa, which was a sultanate originally established by the Sultan of Zanzibar and ruled by an independent potentate called the Jumbe. Puffed up by his victory over Captain Maguire, which because of his preoccupation with more urgent matters in other parts of the Protectorate Johnston had had to leave unavenged, the troublesome Makanjira attacked the Jumbe, who was friendly to the British, and by the middle of 1893 had captured most of his territory until the Jumbe was penned in Kota Kota itself. He was having difficulty holding out, and since the gunboats were now ready Johnston decided that the time had come to settle accounts.

The first step was to relieve the Jumbe, who was now being besieged by one of his Yao headmen who had gone over to the enemy. The Yao's fortified town, five miles from the lake shore, was bombarded and taken by storm and the headman himself was killed. The expedition then crossed the Lake and meted out similar treatment to Makanjira's town and a number of smaller towns and villages, including the village where Maguire, Boyce and MacEwan had met their deaths. Fort Maguire was erected on the Lake shore and garrisoned by Sikhs. Early in 1894 Makanjira attacked the fort but was defeated with heavy loss. His power at last was broken and he sought refuge in Portuguese territory.

The year 1895 saw success crown Johnston's grim, tenacious efforts to teach the slavers the error of their ways and win them over to the Administration. Matipwiri was an Arabised Yao who held the pleasant, well-watered country to the east of Mlanje and the Ruo river commanding the route from Lake Nyasa to Quilimane. He had grown rich by taking toll of the ivory exported to the coast and of the goods brought into Nyasaland, an African robber baron. When he heard that Matipwiri was planning to attack Fort Lister on Mlanje and the scattered European settlement in the vicinity of the mountain, Johnston took action against him in September, and Matipwiri surrendered unconditionally.

Another chief who had to be brought to book was Zarafi who dominated the territory to the east of the Upper Shirè and had long been an active slaver. Johnston set out with a force consisting of 65 Sikhs and 230 native soldiers commanded by Major C. A. Edwards. Their objective was Zarafi's capital on Mangoche Mountain, entailing a march of 78 miles from Zomba of which 50 were through enemy country. Porters were provided by friendly chiefs of the Mlanje district. Their conduct was admirable. Although repeatedly under fire they never once abandoned their loads or attempted to run away.

Mangoche Mountain was a great ridge about twelve miles long and a mile broad and rose to 5,500 feet at its highest point. It was difficult country, ideal for ambush, but two guides provided by a rival chief, Kawinga, led the force by a little known route to within fifteen miles of Zarafi's town. The first attack came when they entered a wooded gorge leading up to the south-eastern base of the mountain, and the fire was directed chiefly against the porters. The fire was wild and none of the porters was hit but an Atonga soldier was wounded. A charge by the Atongas, led by Major Bradshaw and Captain Cavendish, scattered the enemy before they could reload.

Shortly afterwards the force reached a natural castle of rocks crowning a hill which dominated the route. Zarafi had expected them to come from another direction, and the castle was unoccupied. As soon as he discovered his error he sent a large body of men to defend the hill. Not knowing that the police had already arrived they advanced openly and suffered many casualties. The porters rested at this spot while Major Edwards and the majority of his force pushed on for three miles along the ridge. The terrain was all in the enemy's favour - steep hillsides and enormous boulders from behind which Zarafi's men poured a galling fire on the soldiers toiling up the narrow path. Casualties, however, were few because most of the natives aimed too high and the damage was done by a few good marksmen armed with Snider rifles. The officers with the force who were armed with Lee-Metford rifles did great execution and killed about thirty-five of the enemy, whose total losses before the day's fighting ended was more than a hundred men. As a result of this encounter the police seized another favourable position for the final assault on Zarafi's stronghold, but the enemy gave them no rest. Snipers got busy and both Johnston and Major Edwards had narrow escapes, but the 7-pounder was brought into action and cleared the hillsides.

Before dawn the next morning (October 28, 1895) the police climbed Mangoche Mountain without losing a single man. The enemy was completely routed and Zarafi's town was captured without difficulty. Zarafi had already fled, having taken the precaution of sending his ivory, cattle, most of his women and his reserve gunpowder to a Yao chief in Portuguese territory for safe keeping. Only a few slaves were found in the town, and Johnston was disappointed to learn that a large number of slaves had been sold to caravans bound for the coast a few days before. There was very little loot, but one item which pleased Johnston greatly was a 7-pounder gun which Zarafi had captured from a small force sent against him three years previously, one of the few defeats suffered by his police in six years of almost incessant campaigning. The gun was a welcome addition to his armament.

Johnston was impressed by the beauty of the country occupied by Zarafi. "It is marvellously well watered by countless streams and is very fertile in between the mighty boulders with which it is strewn," he wrote. "Zarafi's town enjoys about the most remarkable situation of any place in the Protectorate, being sited on a flat ridge about a quarter of a mile broad at an altitude of 4,250 feet. It is the most practicable gateway into Nyasaland from the East Coast. From the town you can see on the one hand right down the valley of the lower Lujenda for a tremendous distance towards the East Coast; you can see along the marshy lake of Chiuta; from another point you can see the Zomba and Chikala Mountains, the whole course of the Upper Shirè from near Mpimbi to Lake Malombe, then the whole length of the Malombe to the extreme Upper Shirè and the south-eastern gulf of Lake Nyasa up to Cape Maclear, besides gazing westwards to the great tablelands of the Angoni." A truly remarkable view.

The bulk of Zarafi's people were of Anyanja stock who had been dominated by the Yaos. Now that most of the Yaos had fled with Zarafi to their original homeland beyond the Portuguese border, the local people returned and settled down quietly in their old homes. The power of another Yao tyrant had been broken.

The north end of Lake Nyasa, which had been the scene of so much bitter fighting between the African Lakes Corporation on the one side and the Arab half-caste, Mlozi, and his Awemba allies on the other, had been reasonably tranquil following Johnston's arrival in 1889 when Mlozi had signed a treaty promising to keep the peace and at Johnston's request had destroyed an Arab fort, known as Mselemu's stockade, which had commanded the Stevenson road to Lake Tanganyika. But towards the end of 1894 the trouble flared up again. Two large villages which provided porters for the African Lakes Corporation's traffic on the Tanganyika road were attacked by the Arab slave traders and the Awemba, and the occupants were almost entirely exterminated. They also blocked the road with tree trunks and began rebuilding Mselemu's stockade in open defiance of the 1889 treaty.

The unrest in the area affected the adjacent German territory of Tanganyika and the German commandant placed a steamer at Johnston's disposal to help him deal with the insurgents. The missionaries and the agents of the African Lakes Corporation, fearing attacks on their stations, urged the Commissioner to take immediate action to end the trouble, and the trusty little Domira was again employed as a troopship.

The North Nyasa Arabs had overreached themselves. They were up against an entirely different adversary now. Six years before they had had to contend with gallant amateurs assisted by unreliable native allies, all of them inadequately armed. Now they found themselves attacked by disciplined troops, capably led by professional officers and armed with modern weapons. The attack on the Arab forces was launched on December 1, 1894, and after two and a half days' fighting was completely successful. All the stockades were taken and destroyed. The principal culprit, Mlozi, was captured, tried for his crimes, found guilty and executed. During the fighting in and around Mlozi's stockade, the Arabs lost more than two hundred men, against Johnston's losses of one European officer severely wounded, one Indian and three native soldiers killed and six Indian and four native soldiers wounded. They released 569 slaves. The Arabs had intended to make a big stand at Mlozi's and had turned the town into a powder magazine. Early in the fighting the house in which the gunpowder was stored was hit by a shell, with satisfactory results.

Johnston has given an interesting description of Mlozi's town as typifying the stockade erected by the leading slavers. It covered an area of just over twenty acres and was surrounded by walls in which there were five gateways. The outer wall, eight feet high, was made of logs planted firmly in the ground and almost touching, wattled with strong twigs and plastered inside and out with mud until the total thickness of the wall was about two feet. Parallel with the outer wall and about twelve feet away from it was another similar wall seven feet high. The space between them formed a gallery which was roofed over and divided into partitions by wattle and mud walls every twelve feet. The roof was made of two layers of logs on which grass was spread and then two feet of mud well beaten down. The total circumference of the walls was 1,160 yards.

Both the inner and outer walls were loopholed in two rows, one at four feet and the other at eighteen inches from the ground. In the partition walls which divided the gallery between the two walls into rooms were small doorways and every third or fourth room had an additional doorway leading into the town. In each room were two trenches about three feet deep close to each wall and the earth taken from them was piled up in the centre of the room. There were about 260 of these rooms and Mlozi's fighting men lived in them. Such a defence work was impregnable to attack by ordinary native weapons and the smaller European arms. Solid shells were not very effective, either. It took incendiaries and high explosives to reduce Mlozi's stronghold to ashes.

One last wrong remained to be righted - the treacherous murder of Boyce and MacEwan during Captain Maguire's ill-fated attack on Makanjira's dhows. Makanjira himself had been driven out of Nyasaland, but there remained the man primarily responsible for the treachery that had led to their deaths, Makanjira's lieutenant, Saidi Mwazungu. After the final overthrow of Makanjira he had sought refuge with the notorious Angoni slaver, Mwasi Kazungu, in the Marimba district. Many of Makanjira's fighting men had joined Saidi and he had built a strong stockade in Kazungu's country. With a loyalty typical of the Arab slave trader, Saidi was conspiring with Angoni chiefs to the north and south and with the Mohammedans at Kota Kota to take control of his benefactor's territory, after which he proposed to attack Kota Kota, where the Jumbe was friendly to the British, and drive the garrison into the Lake.

Johnston soon spoilt this little plan. He sent a strong force in December, 1895, and after some severe fighting the conspirator's forces were routed. Saidi Mwazungu was captured and the foul crime committed five years before was avenged.

In a letter to Lord Salisbury dated January 24, 1896, Commissioner Harry Johnston was able to report that as a result of his actions "there does not exist a single independent avowedly slave trading chief within the British Central African Protectorate, nor anyone who is known to be inimical to British rule. Those enemies whom we have conquered, like all with whom we have fought since our assumption of the Protectorate, were not natives of the country fighting for their independence but aliens of Arab, Yao or Zulu race who were contesting with us for the supremacy over the natives of Nyasaland."

The traffic in human flesh and blood was ended.

("Zambezi Sunrise" by W.D. Gale, Timmins 1958, Chapter 5, pp.111-125)