"Hänen viimeinen tervehdyksensä: Muutamia muistelmia Sherlock Holmesista" by Arthur Conan Doyle is a collection published in 1917. This anthology gathers previously published Sherlock Holmes stories, including the titular tale about Holmes' wartime service. The collection features a preface by Dr. Watson assuring readers that the great detective, though long retired and suffering from rheumatism, remains alive and well. Eight cases spanning from 1893 to 1917 showcase Holmes' investigative brilliance across mysterious disappearances, espionage plots, and deadly conspiracies.