It was the end of November, and Holmes and I sat, upon a raw and foggy night, on either side of a blazing fire in our sitting-room¹ in Baker² Street. Since the tragic³ upshot of our visit to Devonshire he had been engaged in two affairs of the utmost importance, in the first of which he had exposed the atrocious conduct of Colonel Upwood in connection with the famous card scandal of the Nonpareil Club, while in the second he had defended the unfortunate Mme. Montpensier from the charge of murder which hung over her in connection with the death of her step-daughter, Mlle. Carére, the young lady who, as it will be remembered, was found six months later alive and married in New York. My friend was in excellent spirits over the success which had attended a succession of difficult and important cases, so that I was able to induce him to discuss the details of the Baskerville mystery. I had waited patiently for the opportunity for I was aware that he would never permit cases to overlap⁴, and that his clear and logical mind would not be drawn⁵ from its present work to dwell upon memories of the past. Sir Henry and Dr. Mortimer were, however, in London, on their way to that long voyage which had been recommended for the restoration of his shattered nerves. They had called upon us that very afternoon, so that it was natural that the subject should come up for discussion.