Ep. 14: Lupin must return a cursed ruby to a Caribbean cult to save Fujiko from a mysterious fever.
Aired on January 9, 1978

Hees, identified as the world's richest man, passes away under mysterious circumstances and bequeaths a large ruby to Fujiko in his will. Following the inheritance, Fujiko develops the same unexplained fever that claimed Hees's life. The gemstone was originally stolen from a cult temple located in the Caribbean. Lupin realizes he must return the ruby to the cult to cure Fujiko's condition. However, the cult members have their own plans for Lupin as he attempts to retrieve the artifact. The story focuses on the urgency of returning the cursed item to save Fujiko while evading the wrath of the religious group that originally possessed the ruby.
Episodes
- Ep. 10 · Lupin faces a deadly trap at Marcel Dulane's Paris party while racing to save Fujiko.
- Ep. 11 · Lupin races in Monaco but loses his car and money in a rigged poker game
- Ep. 12 · Lupin Gang Targets Napoleon-Era Bordeaux Gifted to US President
- Ep. 13 · Lupin pursues Zenigata to retrieve microfilm hidden in his molar while the inspector suffers hallucinations.
- Ep. 14 · Lupin must return a cursed ruby to a Caribbean cult to save Fujiko from a mysterious fever.
- Ep. 15 · Lupin faces a gem theft challenge aboard the Hendenburg airship
- Ep. 16 · Lupin battles Transformation Sickness that turns him into a cruel criminal at midnight
- Ep. 17 · Lupin III confronts human bomb threats in a blackmail scheme targeting an Arab nation's oil fields.
- Ep. 18 · Lupin hides the Black Panther emerald in a museum while rival inspectors investigate its disappearance.