Greenmantle

Set during World War I, this adventure novel follows the enigmatic character Richard Hannay as he embarks on a perilous mission across Europe. Tasked with uncovering a German plot to incite a jihad in the Middle East, Hannay teams up with a diverse group of allies. The narrative blends espionage, intrigue, and themes of loyalty and bravery, showcasing Buchan's knack for thrilling storytelling and vivid characterization. The novel captures the tension of wartime and the complexities of human relationships against a backdrop of adventure and danger.