Focusing on the upsurge of interest in the Second World War in recent British novels, this monograph explores the ways in which secrecy and secret work - including code-breaking, espionage and special operations - have been approached in representations of the war. It considers established writers, including Muriel Spark, Sarah Waters and Kazuo Ishiguro, as well as newer voices, such as Liz Jensen and Peter Ho Davies. The examination of the after-effects of involvement in secret work, inter-generational secrets in a domestic context, political allegiance and sexuality shows how issues of loyalty, deception and betrayal are brought into focus in these novels.