The Constant Gardener

You could read this for a Reading Challenge category "a book set somewhere you would like to visit." Le Carré's modern classic opens in northern Kenya with the brutal murder of Tessa Quayle, a beautiful young aid worker. When her husband Justin, a much older diplomat, begins to investigate what happened, he slowly realizes his wife had stumbled upon a grand conspiracy, becoming a threat to powerful interests in the region. Like so many Le Carré novels, this is the story of a decent man driven to desperate action by tragedy.