The Ear, the Eye and the Arm by Nancy Farmer
In the year 2194, there are three Zimbabwe's. There is the Zimbabwe of the rich such as the luxurious compound of General Amadeus Matsika, the country's Chief of Security. His children, Tendai, Rita, and Kuda want for nothing. The robots take care of all their needs, and the Mellower, the house poet, makes everyone feel so much better when he sings their Praises.
In another part of the city dwells the woman who is called the She-Elephant. She has her own compound, her own kingdom, in the abandoned waste dump. She has her servants, too. Fist and Knife are good for running errands-- a little thieving here, a little kidnapping there... When they find Matsika's children by themselves in downtown Harare, the opportunity for profit is just too good to let go.