The final Holmes collection, comprising twelve stories written across the preceding decade and published the year before Doyle's death. The Case-Book is the most uneven of the collections - Doyle acknowledged publicly that his enthusiasm for Holmes had long since waned, and several stories feel perfunctory by the standards of the earlier work. It contains two of the three stories narrated from Holmes's own perspective rather than Watson's, and experiments with form and tone in ways that don't always succeed.