While building a pipeline near the Okavango Delta, a contractor unearths the skeleton of a long-dead Bushman. Kubu and Scottish pathologist, Ian MacGregor, are sent to investigate, and MacGregor discovers eight more skeletons. Then an elder of the nearby village is murdered at his home. The local police believe it was a robbery, but Kubu thinks otherwise. So does a strange woman who claims it was an angry river spirit. Assistant Superintendent Mabaku joins them as accusations of corruption are levelled and international outrage builds over the massacre of the Bushman families. But how do the recent murders link to the dead Bushmen, if at all? As Kubu and his colleagues investigate, they uncover a deadly covenant and begin to fear that their own lives may be in danger. The young Kubu's second big case mixes local mythology and tradition with smart police work to make for a satisfyingly immersive mystery that begs resolution until the last, unpredictable moment.-- Back cover.