Sherlock Holmes and Dr. Watson invite readers for the last time into the world of criminal puzzles. The most famous detective duo gradually approaches the solution to the mysteries of the criminal underworld. This time, among other things, they explain the theft of a precious jewel, search for the "vampire" of Sussex, and solve the mystery of the disappearance of the young wife of a paint merchant. "The Case-Book of Sherlock Holmes" is the ninth and final volume of stories about the adventures of the detectives from Baker Street.