In 1821 Major Laing, starting from Sierra Leone, made a journey in search of the source of the Niger, but was compelled to return.
In 1819 Mr Ritchie, with Lieutenant Lyon, of the navy, started from Tripoli, intending to proceed southward to Bornou, in order to trace the downward course of the Niger, but Mr Ritchie died, and Lieutenant Lyon was unable to get further than the southern frontier of Fezzan.
Owing to the judicious conduct of Mr Warrington, the British Consul at Tripoli, the English were held in high estimation at that court, and the pacha, who was looked upon by the wild tribes of the south as the most potent of all monarchs, assured him that any of his countrymen could travel with perfect safety from his territories to Bornou.
The Government, therefore, considering circumstances so favourable, organised a fresh expedition, headed by Lieutenant Clapperton and Dr Oudney, of the Navy. Major Denham having volunteered his services, they were accepted, and he joined his intended companions at Tripoli. He was accompanied by Mr Hillman, a shipwright, who undertook to direct the building of a vessel on the Niger.
After visiting the pacha, and having accompanied him on a hawking party in the desert, Major Denham set out on the 5th of March, 1822, to join his two companions, who had gone forward to the beautiful valley of Memoom.
When near Sockna, they met a kafila, or caravan of slaves, in which were about seventy negroes, who told them that they came from the different regions of Soudan, Begharmi, and Kanem. Those from Soudan had regular features and a pleasing expression of countenance.
On reaching Mourzouk they were disappointed in their expectation of receiving assistance from the sultan, who declared that it was impossible to obtain either camels or horses before the next spring, to enable them to proceed. Finding this, Major Denham determined to return to Tripoli, to represent to the pacha that something besides mere promises must be given.
Attended by his negro servant, Barca, he reached that town on the 12th of June, and the pacha himself showing little inclination to render assistance, he at once started for England, to represent the state of affairs to the Government. He was, however, overtaken at Marseilles by a messenger from the pacha entreating him to return, and assuring him that he had appointed a well-known caravan leader, Boo-Khaloum, with an escort to convey him to Bornou.
On his return to Africa he found Boo-Khaloum and part of the escort already waiting for him at the entrance of the desert. His new friend delighted in pomp and show, and he and his attendants entered Sockna attired in magnificent costumes, their chief himself riding a beautiful Tunisian horse, the saddle and housing richly adorned with scarlet cloth and gold. This African caravan merchant united the character of a warlike chief and trader, his followers being trained not only to fight in defence of his property, but to attack towns and carry off the hapless inhabitants as slaves. Yet Book-Haloum was superior to most of his age; he possessed an enlarged and liberal mind, and was considered an honourable and humane man, while so great was his generosity that he was adored by his people.
On the 30th of October the caravan entered Mourzouk with all the parade and pomp they could muster. Boo-Khaloum’s liberality had made him so popular that a large portion of the inhabitants of the town came out to welcome him.