Sherlock Hound

Hound is returning to England, but while crossing the English Channel, the ship he's on is attacked by pirates who are after one of the passengers. With the aid of another passenger, Dr. John Watson, Hound attempts to save the day.

An aristocrat's son is the main suspect after a crown on loan from the Queen goes missing. Hound is asked to investigate, not knowing Professor Moriarty has been watching the location.

Hound suspects Professor Moriarty for the rising counterfeit money problem in London, but is unable to find any leads until a little girl comes asking Hound to help her find her father.

Professor Moriarty thinks he has found a weakness in Hound, his land lady Mrs. Hudson, and so sets about kidnapping her, but things don't go as he planned.

A little girl named Polly pickpockets a gem Professor Moriarty has just stolen, and he is determined to stop at no end to get it back.

A mysterious green balloon lands in Hound's backyard, with a message asking for help as the sender is being held prisoner on Dolphin Island.