chunk: When the Americans from Ko Pha Ngan turn up on the neighboring island, Sal sees that they have a copy of the map and orders Richard to observe them until they cross over, then intercept them and destroy it. She tells everyone that she and Richard had sex, which leaves Françoise angry and heartbroken. Isolated from the group, Richard begins to lose his sanity, stalking the cannabis farmers and imagining that he is conversing with the deceased Daffy. The Americans reach the island but are discovered and killed by the farmers. Shocked at witnessing their deaths, Richard tries to gather Françoise and Étienne to leave the island. Étienne refuses to leave Christo, whose leg has become gangrenous, so Richard euthanizes Christo by suffocation.