1973
In town, Marc's investigations in search of the Americans come to nothing. He meets a young island girl, Rosa, who witnessed the shooting. Already captured by Néron, she is frightened. Marc tries to get the child to talk, but to no avail. As for Néron, he sets out to get rid of old Jeff. He attacks Doctor Caraïbes' house, but to no avail. Meanwhile, Néron's frogmen discover the galleon containing the treasure.