With a new introduction by Colm Toibin A leak is traced to a small sub-section of SIS sparking off the inevitable security checks tensions & suspicions The sort of atmosphere perhaps where mistakes could be made? For Maurice Castle it is the end of the line anyway & time for him to retire to live peacefully with his African wife Sarah To the lonely isolated neurotic world of the Secret Service Graham Greene brings his brilliance & perception laying bare a machine that sometimes overlooks the subtle & secret motivations that impel us