It’s rare that a novel, especially a first novel, transports the reader so completely and so persistently into another space. Djinn Patrol on the Purple Line by Deepa Anappara is set om a large but unspecified Indian city. Young children have started to disappear from a local basti, a slum. The eponymous Djinn Patrol is a small group of children led by nine year old Jai, a little boy who along with his friends lives in the basti. Obsessed with television cop programmes and keen to become a detective, Jai decides to investigate.