The Cab of the Sleeping Horse

The Cab of the Sleeping Horse, written by John Reed Scott in the early 20th century, is a mystery novel centered on Harleston, who discovers an abandoned cab and its secrets. Inside, he finds a cipher-laden letter and a photograph of a woman named Madeline Spencer, prompting him to investigate further. His quest leads to a mysterious woman, Madame X, who seeks the items he found, hinting at a connection to international intrigue. The narrative weaves elements of espionage and romance into a complex web of events.