Greenmantle by John Buchan  || Buchan, John, 1875-1940 || World War, 1914-1918 -- Fiction; War stories; Spy stories; Hannay, Richard (Fictitious character) -- Fiction; Intelligence service -- Great Britain -- Fiction || World War I; Adventure; Mystery Fiction; Movie Books; Browsing: History - Warfare; Browsing: Science-Fiction & Fantasy; Browsing: Fiction || Language : English