On leaving Bilma, the chief centre of this district, another desert tract had to be crossed, necessitating long and harassing marches, under the hardships of which as many as twenty camels would sink down exhausted in a single day. This dread region was at length also safely traversed, and infinite was the relief and thankfulness of all when towards the end of January the approach to more fertile tracts was indicated by the appearance of clumps of grass, and further on of a few scattered and stunted trees. This miserable and dingy vegetation looked delightful and refreshing to travellers who for over two weary months had been in a land of death and desolation. Tibbu inhabitants, with their flocks and herds, reappeared with the vegetation, and fresh meat and camel’s milk were to be had in abundance.

The caravan had this time reached no mere oasis. With each day’s march south the country improved in appearance, till the party found themselves in charming valleys shaded by leafy trees, festooned with creeping vines of the Colocynth, while underneath the sheltering canopy the ground was aglow with many-hued and brilliantly-coloured flowers. Nor was there lack of animal life to give animation and variety to the scene. Hundreds of twittering birds fluttered from tree to tree, careless of the vultures and kites which gracefully circled far up in the heavens. From a distance shy gazelles watched the newcomers with their beautiful eyes wide-stretched, but ready, if alarmed, to bound away at a moment’s notice to their forest haunts. The very sky reflected the softer conditions of nature, and showed a brighter blue cloud-speckled; and the natives in their smiling faces and hospitality harmonised with the happier conditions under which they lived, though from time to time the ruthless acts of the Arab caravan sent them flying in terror.

There was no mistaking the fact that the Sudan—the country known by hearsay for over four centuries, but which so far had baffled all attempts to explore it—had at last been reached. On the 4th February 1823 the travellers’ eyes were greeted with a sight “so gratifying and inspiring that it would be difficult for language to convey an idea of its force. The great lake Chad, glowing with the golden rays of the sun in its strength, appeared within a mile of the spot on which we stood. My heart bounded within me at the prospect, for I believed this lake to be the key to the great object of our search (presumably the Niger), and I could not refrain from silently imploring Heaven’s continued protection, which had enabled us to proceed so far in health and strength even to the accomplishment of our task.”

Nine days later the river Yeou was discovered flowing from the west. The name given to it by the Arabs unlocked the secrets of many geographical misconceptions. But that it was neither the true Nile nor the Niger was soon made patent—for, on the one hand, its course ended in the Chad; and, on the other, its size, and the reports of the natives, made it clear that it drained only the eastern Haussa States.

February 17 was a momentous date in the history of the expedition, for on that day they reached Kuka, the capital of Bornu.

Their entry was made in great state, worthy the traditions of a powerful semi-civilised Sultan. Several thousand well equipped and marvellously caparisoned horsemen awaited the strangers outside the town, and on seeing them, charged as if with the intention of annihilating the little band. Suddenly, while at full gallop, they pulled up right in the faces of the newcomers, almost smothering them with clouds of dust, and putting them in some danger from the crowding of horses and clashing of spears.

The Sultan’s negroes, as they were called, were specially conspicuous, “habited in coats of mail composed of iron chain, which covered them from the throat to the knees, dividing behind and coming on each side of the horse. Some of them had helmets, or rather skull caps, of the same metal, with china pieces all sufficiently strong to ward off the shock of a spear. Their horses’ heads were also defended by plates of iron, brass, and silver.”

It would be difficult to give the faintest idea of the strange sights and scenes which now opened up before our travellers in the centre of the ancient empire of Bornu. Nothing more remarkable had ever been seen by any European explorer—at least in Africa. From the Sultan and his much-robed courtiers down to the scantily-draped country people, all were alike interesting. The teeming life in all its varied forms—Arab, Berber, Fulah, and negro of twenty different tribes—made up a picture of strange attractiveness. Not less interesting were the curious customs, the industries, the mixture of a considerable degree of civilisation and religious elevation with the lowest depths of barbarism and degrading superstition. These were the more marked, inasmuch as when the English travellers saw Bornu and its remarkable court, it was just re-emerging from a temporary eclipse of its national glory. Only a short time before it had thrown off the temporary domination of the Fulahs, to whom it had succumbed in their first irresistible onrush.

The reception of Clapperton and Denham was exceedingly promising, and a bright career of discovery seemingly lay open to them.

Matters assumed a worse aspect, however, when differences of opinion arose among the Arabs of the caravan. They had been despatched as an escort to the travellers, it is true, but they were not placed directly under their command. To do absolutely nothing but look after the safety of the Europeans was as alien to their conception of duty as the idea of travelling all the way to Bornu without turning the journey to profitable account. The majority of them not being merchants, and therefore not supplied with goods for barter, had only their weapons to depend upon to recoup them for their trouble. A slave raid was therefore determined on, in spite of the opposition and remonstrances of Bu Khalum and the Europeans. As the Arabs were not to be turned aside from their project, the leader reluctantly agreed to go with them, and Denham, finding himself helpless, resolved to join the party likewise in order to extend his knowledge of the region.