Sherlock Holmes: The Musical revised version, entitled 'The Revenge of Sherlock Holmes' included some new material never previously performed. This new version opened to critical acclaim. "Sherlock Holmes: The Musical" was at least the second musical to be based on Sherlock Holmes, after "Baker Street" in 1965. It is also one of over 50 stage productions based on the Holmes character; see adaptations of Sherlock Holmes. The play opens after Professor Moriarty's death and Sherlock Holmes' miraculous return to life. As Dr. Watson and Mrs. Hudson describe the many eccentricities on their friend ("Sherlock Holmes"), we find that Holmes is, to Watson's disbelief, missing
Canon of Sherlock Holmes recent years further investigations have revealed more to the traditionally collected canon. As there exists no definitive body to argue what is, and what is not canon beyond the already established novels and stories, it is unlikely that any piece, no matter how good its claim to be "canonical" will ever be popularly received into published versions of the Complete Sherlock Holmes. However, as many as eighteen works have been cited as possible entrants. These works include plays, poems, essays on the character, and even short stories. Published collections of extracanonical works include: "Sherlock Holmes: The Published Apocrypha", edited by