In 'The Man who Knew' by Richard Horatio Edgar Wallace, readers are taken on a suspenseful journey through the seedy underbelly of London's criminal world. Written in Wallace's signature fast-paced and gripping style, the book masterfully combines elements of mystery, thriller, and adventure. Set against the backdrop of post-WWI England, the story is rich in detail and vivid descriptions, transporting readers to a time of societal upheaval and moral ambiguity. Wallace's careful attention to character development and plot twists will keep readers on the edge of their seats until the very last page. Richard Horatio Edgar Wallace, a prolific writer known for his crime fiction novels, drew inspiration from his own experiences as a journalist and war correspondent. His keen observations of human nature and the complexities of the criminal mind are evident throughout 'The Man who Knew,' adding depth and authenticity to the narrative. I highly recommend 'The Man who Knew' to any reader who enjoys a compelling mystery with well-crafted characters and a captivating plot. Wallace's storytelling prowess shines in this thrilling tale of deception, danger, and intrigue.