The Ear, The Eye and The Arm, by Nancy Farmer

The Newbery Honor Book, The Ear, The Eye and The Arm is a science fiction- mystery-thriller set in the African nation of Zimbabwe in the year, 2194.  The book is about the three Matsika children and their adventures through a very strange, futuristic world of characters such as, the She Elephant and the Blue Monkey.  When they go missing, their parents call upon the most unusual detectives in Africa, The Ear, The Eye and The Arm.