Mr. Standfast

by John Buchan

"Mr. Standfast" by John Buchan is a novel published in 1919. Brigadier-General Richard Hannay is pulled from the Western Front for a dangerous secret mission: hunting a German spy network operating in Britain. Disguised as a pacifist, he must work undercover to track enemy agents across the country and into the Swiss Alps. With coded messages hidden in "Pilgrim's Progress" and allies in unexpected places, Hannay faces his most complex assignment yet—one that could determine the fate of Europe.