Dr Watson It’s a friend of Sherlock Holmes. Sherlock Holmes is a detective. Peterson is a doorman. Mr Henry Baker is the owner of the hat and goose. Countess Morcaris is the owner of the blue diamond. John Horner is a man who repairs the windows. Mr Windigate is the owner of the Alpha Pub. Mr Breckinridges is a man who sells geese. James Ryder is the man who stole the blue diamond.