The typical action hero with a stiff upper lip whose actions speak louder than his words, a mysterious American who lives in dread of being killed, an anarchist plot to destabilize Greece, a deadly German spy network, a notebook entirely written in code, and all this set in the weeks preceding the outbreak of World War I. The Thirty-nine Steps, by John Buchan is a spy classic entirely worthy of its genre and will delight modern day readers with its complicated plot. It is also notable for being the literary progenitor of the spook novel that typically features the secret operative on the run, determined to unravel a world domination plot...

Greenmantle is the second of five Richard Hannay novels by John Buchan, first published in 1916 by Hodder & Stoughton, London. It is one of two Hannay novels set during the First World War, the other being Mr Standfast (1919); Hannay’s first and best-known adventure, The Thirty-Nine Steps (1915), is set in the period immediately before the war started. – Hannay is called in to investigate rumours of an uprising in the Muslim world, and undertakes a perilous journey through enemy territory to meet up with his friend Sandy in Constantinople. Once there, he and his friends must thwart the Germans’ plans to use religion to help them win the war, climaxing at the battle of Erzurum.

This is the third of Buchan's Richard Hannay novels, following The Thirty-nine Steps and Greenmantle. Set, like Greenmantle, durinig World War I, it deals Brigadier-General Hannay's recall from the Western Front, to engage in espionage, and forced (much to his chagrin) to pose as a pacifist. He becomes a South African conscientious objector, using the name Cornelius Brand. Under the orders of his spymaster, Sir Walter Bullivant, he travels in the book through England to Scotland, back to the Western Front, and ultimately, for the book's denouement, into the Alps...