Greenmantle

Set against the backdrop of World War I, Richard Hannay embarks on a dangerous mission to investigate an impending uprising in the Muslim world. His journey through enemy territory leads him to Constantinople, where he teams up with his friend Sandy. Together, they face the challenge of thwarting German schemes that exploit religion for war advantage, culminating in the intense battle of Erzurum. This adventure combines espionage, friendship, and the complexities of war in a gripping narrative.