Sapper's 'When Carruthers Laughed' is a classic mystery novel that follows protagonist Carruthers as he navigates through a complex web of espionage and intrigue. Set against the backdrop of WWI, the novel expertly weaves together elements of suspense, humor, and adventure. Sapper's writing style is characterized by its fast-paced narrative and sharp dialogue, keeping readers engaged from start to finish. The book offers a glimpse into the literary context of early 20th-century detective fiction, showcasing Sapper's skill in crafting compelling and thrilling stories. Fans of classic mystery novels will appreciate the twists and turns in 'When Carruthers Laughed.'