The Cab of the Sleeping Horse

"The Cab of the Sleeping Horse" by John Reed Scott is a captivating mystery that begins one spring night with the discovery of an abandoned cab and its sleeping horse. A man named Harleston is drawn into a web of secrets when he investigates the cab, finding cryptic items like a ciphered letter and a picture of the alluring Madeline Spencer. His curiosity propels him into a quest where he receives a mysterious phone call from a woman known only as Madame X, who wants the objects back, suggesting they are tied to something bigger than he initially imagined. As the story unfolds, Harleston thinks back to his history with Madeline, setting the stage for a complex interplay of spying and complicated romance.