Mr. Standfast: by John Buchan

Published in 1919, Mr. Standfast is a thriller set in the latter half of the First World War, and the third of John Buchan's books to feature Richard Hannay.Richard Hannay is called back from serving in France to take part in a secret mission: searching for a German agent. Hannay disguises himself as a pacifist and travels through England and Scotland to track down the spy at the center of a web of German agents who are leaking information about the war plans. He hopes to infiltrate and fee...