[3] Head trainer John Mason from Shoscombe Old Place, a racing stable in Berkshire, comes to Sherlock Holmes about his master, Sir Robert Norberton, Baronet.

Sir Robert's sister, Lady Beatrice Falder, owns Shoscombe, but it will revert to her late husband's brother when she dies.

The keeper of the inn where they are staying is the one who now has Lady Beatrice's dog, and it is quite an expensive breed, one that an innkeeper ordinarily could never afford.

With the innkeeper's permission, Holmes takes the dog for a walk, and goes to Shoscombe, where he releases it as Lady Beatrice's carriage comes out of the gate.

After Holmes makes it plain that he has deduced most of the odd goings-on, Sir Robert invites him and Watson back to the house and explains everything.

About a week earlier, Lady Beatrice died of dropsy, and Sir Robert felt compelled to keep the fact secret so that the creditors would not swoop down on Shoscombe before he had a chance to win the Derby and pay off all his debts.

Shoscombe Prince wins the Derby, Sir Robert escapes any major judicial penalty for what he did to his sister's body, and he pays off all his debts with a great deal left over.

It was adapted by Michael Hardwick, and featured Frederick Treves as John Mason and Ronald Baddiley as Josiah Barnes.

It featured Nicholas Le Prevost as John Mason, Donald Pickering as Sir Robert, and Desmond Llewelyn as Palfreyman.