This is book #2 in the No.1 Ladies' Detective Agency series by Alexander McCall Smith. The series follows the adventures of Ramotswe, a one of a kind female private detective in Botswana. She is tasked with cracking the case of the American who disappeared at the edge of the Kalahari desert ten years ago. Apart from using her ability and energy to solve the case, she is faced with a lot of challenges in her personal life too.