Abdul was what is known in these parts as a _diavandu Fulah_, that is to say, a Fulah belonging to a family which resembles in certain respects the _griots_ of whom I have had more than once occasion to speak. A _diavandu_ attaches himself to the person of some chief, whom he serves as a confidential agent, courier, etc. He toadies his master to the top of his bent, and so makes a good thing out of him, by hook or by crook. Even if he is not exactly a noble character, it is impossible to deny that the _diavandu_ is often very full of intelligence and address. If Abdul had really resolved to join us he might have rendered us very great services, but, as will be seen, the sly fellow had his own particular schemes to further, and was perhaps even a spy in the pay of the Toucouleurs sent to watch and circumvent us. Destenaves was, moreover, in a great state of indignation, for though his expedition had succeeded at Dori, it had come to grief at Mossi. He had even had to fire a few shots. He laid all the blame, not without reason, on the former Governor of the French Sudan. In fact, M. Grodet, instead of letting Destenaves go first to Bobo Diulasso, where he would have been sure of a good reception, made him adopt an unfortunate course. Unable, in face of his instructions from home, to stop the expedition altogether, as in our case, he ordered its leader to go towards the districts occupied by the Mossi, who were wholly unprepared to receive it. We left Sego on the morning of the 18th, and arrived the same day at Sansanding, where my good friend Mademba was waiting for us. Every traveller who has been to Mademba’s, and has since written an account of his journey, has made a point, not without justice, of bearing grateful testimony to the merits of this noble fellow. Mademba Seye is a native who was at one time in the employ of the French post and telegraph office. He especially distinguished himself during the construction of the line which, keeping alongside of the Senegal, crosses the Toucouleur districts of the Senegalese Foota. Just now the Toucouleurs were very much irritated against us, and full of arrogance because no punishment had been inflicted on them for their daily misdeeds. They stopped barges coming up from St. Louis, they molested the traders and pillaged their merchandise, and the greatest skill, courage, and _savoir faire_ were needed on the part of Mademba to conquer the difficulties besetting his path. [Illustration: MADEMBA.] Later he did wonders in the Sudan, and his defence of the village of Guinina was a glorious feat of arms. He was victorious over the troops of Fabu, the brother of Samory, though he had no one with him but the few employés helping him to put down the line. Colonel Gallieni sent for him to be a kind of chief interpreter, and he held that position until, the Toucouleurs having been driven from Sego and Nioro, the country just conquered by the French was properly organized.