The Adventure of Shoscombe Old Place

"The Adventure of Shoscombe Old Place" is the last of the 56 Sherlock Holmes short stories by Arthur Conan Doyle. The story is part of the short story collection The Case-Book of Sherlock Holmes. It was first published in the US in Liberty in March 1927. It was published in the UK in The Strand Magazine in April 1927. The original title "The Adventure of the Black Spaniel" was changed before publication.
Head trainer John Mason from Shoscombe Old Place, a racing stable in Berkshire, comes to Holmes about his master, Sir Robert Norberton. Mason thinks he has gone mad. Sir Robert's sister, Lady Beatrice Falder, owns Shoscombe, but it will revert to her late husband's brother when she dies. The stable has a horse, Shoscombe Prince, who Sir Robert hopes will win the Derby. He would be out of debt if that actually happened.
Mason is not quite sure what he wants Holmes to investigate, but a number of odd changes have happened at the stable:
Why has Lady Beatrice suddenly forgone her usual habit of stopping to greet her favourite horse? Why does she just ride on by in her carriage?
Why has Sir Robert become so wild-eyed lately?
Why has he given his sister's dog away to a neighbourhood innkeeper?
Why does he go to the old crypt at night, and who is that man that he meets there?
Why have burnt human bones been found in the furnace at Shoscombe?...
Famous works of the author Arthur Conan Doyle: A Study in Scarlet, The Sign of the Four, The Adventures of Sherlock Holmes, The Memoirs of Sherlock Holmes, The Hound of the Baskervilles, The Return of Sherlock Holmes, The Valley of Fear, His Last Bow, The Case-Book of Sherlock Holmes, Stories of Sherlock Holmes, The Lost World.