Recalled from active service on the Western Front, Richard Hannay is sent undercover on a secret mission to find a dangerous German agent at large in Britain. Disguised as a pacifist, Hannay travels from London to Glasgow to the Scottish Highlands and Islands in his search, which eventually ends in a spectacular climax above the battlefields of Europe. John Buchan's inside knowledge of trench warfare and government intelligence lend a formidable realism to this superlative story. A nail-biting classic from a master storyteller. With an introduction by Hew Strachan. This edition is authorised by the John Buchan Society.