From 9/11 to 26/11, Burhan Wani to Kulbhushan Jadhav – the India–Pakistan relationship told from the perspective of the R.A.W. and the I.S.I. With unprecedented access to the R.A.W. and the I.S.I., the world’s most inscrutable spy agencies, Adrian Levy and Cathy Scott-Clark describe the workings of bitter rivals, mapping their complicated history from the 1960s to the present day.