This is an original Japanese poster, printed in 1984, for the release of “Sherlock Hound: The Adventure of the Blue Carbuncle/Treasure Under the Sea” (名探偵ホームズ 青い紅玉の巻 / 海底の財宝の巻).

The film is essentially a compilation of two episodes of Sherlock Hound’s anime television series directed by Hayao Miyazaki.

In the first part, a mysterious bright red bird appears in the sky above London, flying around and making strange noises. While chaos erupts among the citizens, Moriarty successfully steals the “Blue Carbuncle” from a jewelry store. However, the “Blue Carbuncle” in his pocket is pickpocketed by Polly, a girl pretending to be a boy, who had her own circumstances. In an unexpected turn of events, Polly meets Holmes and his friends. They will now have to protect Polly and the Blue Carbuncle from Moriarty.

In the second part, Holmes and Watson are summoned by the commander of the navy when the news that “Adventurer Captain Lythander has Discovered Napoleon’s Treasure Under the Sea” is spreading like wildfire throughout London. It seems that a submarine being constructed secretly was stolen. Just as Holmes discloses the hideout of the culprit, Professor Moriarty, to the commander, the indignant commander sets out on a warship while taking Watson, who is displeased with him, and a reluctant Holmes on board in pursuit of the submarine stolen by Moriarty.