Dr. Mortimer thinks that Sir Charles’s mind was prepared for such a death as he suffered. Why does he say so? In what ways was he prepared?

‘This family paper was committed to my care by Sir Charles Baskerville, whose sudden and tragic death some three months ago created so much excitement in Devonshire. I may say that I was his personal friend as well as his medical attendant. He was a strong-minded man, sir, shrewd, practical, and as unimaginative as I am myself. Yet he took this document very seriously, and his mind was prepared for just such an end as did eventually overtake him.’

‘Within the last few months it became increasingly plain to me that Sir Charles’s nervous system was strained to the breaking point. He had taken this legend which I have read you exceedingly to heart—so much so that, although he would walk in his own grounds, nothing would induce him to go out upon the moor at night. Incredible as it may appear to you, Mr. Holmes, he was honestly convinced that a dreadful fate overhung his family, and certainly the records which he was able to give of his ancestors were not encouraging. The idea of some ghastly presence constantly haunted him, and on more than one occasion he has asked me whether I had on my medical journeys at night ever seen any strange creature or heard the baying of a hound.'

Sir Charles believed the legends and had prepared himself to suffer the same fate of his ancestors.