Sherlock Holmes is a detective. He has a friend named Dr. Watson. One day, they find a lost hat. The hat is old and dirty. They look for the owner. They go to a hotel. A thief is there. The thief steals a Christmas goose. Inside the goose, they find a blue gem. The gem is very valuable. Holmes and Watson solve the mystery. They return the gem to the owner. The owner is happy. It is a good Christmas for everyone.