Four Max Carrados Detective Stories by Ernest Bramah audiobook.
Ernest Bramah is mainly known for his 'Kai Lung' books - Dorothy L Sayers often used quotes from them for her chapter headings. In his lifetime however he was equally well known for his detective stories. Since Sherlock Holmes we have had French detectives, Belgian detectives, aristocratic detectives, royal detectives, ecclesiastical detectives, drunken detectives and even a (very) few quite normal happily married detectives. Max Carrados was however probably the first blind detective.