“Doctor Watson was very pleased to be back in the untidy room on the second floor of the house on Baker Street, in the room where so many amazing adventures began. He looked around at the acid-corroded table with chemicals, the violin case leaning in the corner, the coal scoop that always contained pipes and tobacco. Finally his gaze settled on the fresh, smiling face of Billy, a young but very intelligent and tactful errand boy, whose presence slightly filled the abyss of loneliness and isolation that isolated the gloomy figure of the great detective...”