Before leaving Kahira I was apprised, that all commerce in Dar-Fûr was conducted by means of simple exchange. To carry on this in such a way as not to be grossly defrauded, especially having my attention engrossed by other objects, and in utter ignorance of the articles fit for bargain and sale in this country, seemed wholly impossible; I therefore sought for a person who might go through this business for me, at least with some share of probity. Such a one arose to the notice of my friends there; and knowing nothing more of the man, as indeed I could not know any thing more, than the character they gave of him, I took him on the general recommendation of being honest, and understanding the business in which he was likely to be employed. The person recommended had been a slave-broker in the market of Kahira; a circumstance which, had it been known to me earlier, would probably have prevented my employing him. Till the moment of departure I had observed in him keenness but no fraud, and in general that submissive acquiescence and absolute devotion to the will of the superior, for which the lower class of Kahirines are externally, at least, remarkable. The hour for commencing our march, however, seemed with him the signal for disobedience and insulting behaviour; and we were not yet far removed from the confines of Egypt, when this misconduct was carried to such an excess that I once levelled my gun at him with a view of inspiring terror. The merchants around us interfered, and for the time this passed off; but the man only sought an opportunity of revenge, which the prejudices of the people of Soudan, in direct opposition to my former information, too soon afforded him means to gratify. The letters with which I was provided for different merchants in this district, under whose roof I might have had a safe lodging, could be of no use to me till I had seen the Sultan; for till then no person knew in what character to receive me. The object of this man therefore was to prevent my introduction to the Sultan, and to preclude me from any opportunity of representing my case. We were no sooner arrived at Sweini, than he found means to employ one of his associates, who had been some years established in the place, to go to the monarch, and infuse into his mind suspicions of me as a Frank and an infidel, who came to his country for no good purpose, and whose designs it behoved him to guard against; and to suggest to him that it would not be proper I should remain at large, nor yet immediately come to his presence, but that some person should be commissioned to watch over and report my actions, and thus frustrate my supposed evil intentions. He added, as I afterwards found, many anecdotes, falsified or exaggerated, of the inquiries I had made, the way I had been employed, and my general behaviour on the road.