John Mannering is a fictional character created by author John Creasey. He is known as a gentleman thief and a master of disguise, often using his skills to outsmart his adversaries. Mannering's adventures typically involve intricate plots and clever heists, showcasing his intelligence and charm. In addition to his criminal exploits, Mannering is portrayed as a complex character with a moral code. He often finds himself in situations where he must navigate the fine line between right and wrong. His stories are set in various locations, adding to the intrigue and excitement of his escapades.