These six cases are among the last undertaken by Sherlock Holmes before he retired to the Sussex Downs. However, the problems facing the sleuth are as diverse and challenging as ever: in seeking the whereabouts of the stolen Mazarin Diamond, discovering the importance of being called Garrideb, encountering a mysterious murder on Thor Bridge, searching for eternal youth and the threat of a Vampire in Sussex, Holmes's deductive powers show no signs of slowing down. David Timson's award-winning series is widely acknowledged to be among the very best interpretations of the master sleuth.