'PROOF THAT THE SPY GENRE IS FLOURISHING IN THE 21ST CENTURY' Guardian 'I know for certain that there is a mole somewhere within the intelligence services . . . His codename is Nobody . . .' Solomon Vine is a spy on a fast track to the top. But when a prisoner is shot in unexplained circumstances on his watch, only suspension and exile beckon. Three months later, MI6's Head of Station in Istanbul...