the community. Soon afterward, Sal reassigns Richard to the perimeter detail to partner with Jed and keep a close eye on the potential invaders. With a free spot in Gregorio's fishing detail, Keaty takes Richard's place. A few days later, he mistakenly catches a dead squid that gives severe food poisoning to most of the group. The few remaining healthy members struggle to nurse the sick residents back to health. Richard returns from his sentry duty to find that Bugs has punched Keaty in the face for his mistake. Richard, having never liked Bugs' arrogant nature, instigates a heated argument with him in front of the whole group, which leads to a division of the community into several cliques. On this day, only two of the fishing details are still in operation, and the best detail, comprising three Swedes — Christo, Sten, and Karl — who fish outside the safe lagoon area, is attacked by a shark. The camp only finds out about the shark attack upon the return of one of the three, Karl, in the early evening. Karl carries Sten on his back to the village, where Sten is discovered to have already bled to death. While Karl was not physically harmed by the shark, he suffers severe emotional trauma from having watched his friend die. He subsequently spends his time sitting in a dug-out hole on the beach and not talking to anyone, barely accepting food and water. Richard realizes that Christo is still missing and, at his own risk, retrieves him from partially submerged caves of the lagoon. Richard is praised for his heroic rescue of Christo, who at first seems fine but later collapses, owing to the internal bleeding from having been rammed by the shark. Due to Christo's grave wounds, he requires Jed's presence in the camp, because only Jed has the medical knowledge to tend to him. This leaves Richard to work the sentry detail alone. A few days later, a funeral is held for Sten near the jungle waterfall, and Sal gives a decisive speech that somewhat restores social harmony. She announces that it is 11 September, so they will thus be celebrating the Tet festival in three days' time. Spending long hours alone in the forest as he hikes between lookout spots, Richard begins to experience hallucinations in which Daffy appears: They converse and patrol together the part of the island