Includes: In Re: Sherlock Holmes. Black cloth. Lacking jacket. Inscribed by Derleth on front free endpaper. [1945] * The Memoirs of Solar Pons. Black cloth. Lacking jacket. [1951] * The Return of Solar Pons. Black cloth, jacket. [1958] * The Casebook of Solar Pons. Black cloth, dust jacket. Inscribed by Derleth on half-title. [1965] * A Praed Street Dossier. Black cloth, jacket. Ex-library with markings, card pocket, etc. Together 5 volumes.