In this chapter, the family’s survival journey takes a productive turn as they explore the surrounding landscape. During a routine excursion to harvest gourds, Fritz and Jack make a significant discovery. They return with a plant they dubbed the "monkey plant" because they observed a "troop of apes pulling these from the ground and eating them." Upon inspection, the narrator identifies the plant as "ginseng," a valuable resource noted for being "good for health and medicine."
However, this success is tempered by the news that the monkeys have wreaked havoc on the family's farm. Fritz reports that the farm has been "almost ruined by the monkeys," leaving the animals and the cottage in "a mess." The monkeys had effectively encroached upon the family’s established territory, necessitating a strategic response to protect their food source and living quarters.
Drawing on their previous experience with capturing pigeons, the family decides to use the rubber they had been "tapping" from trees to solve their pest problem. By "smearing the rubber onto the branches of trees," they had successfully trapped birds in the past. They decide to apply this same strategy to the farm. Upon arriving at the farm, they "smeared the sticky stuff all around" in anticipation of the intruders.
The plan proves highly effective. When the monkeys return, they are "quickly stuck all over with sticky stuff," becoming ensnared not only on the trees but even on the bowls and household items left behind. The combination of the adhesive trap and the presence of the family’s dogs forces the monkeys to scatter, effectively clearing the farm and ensuring they would "never to return."
Life on the island is rarely without its challenges, as evidenced by Jack’s return one day "covered in slime." Having ventured out alone in search of new resources, Jack had attempted to harvest bamboo but ended up trapped in a marsh. He explains, "I got stuck and fell in the marsh," and admits he was only saved because "Turk saved me by pulling me out."
Despite the indignity of his ordeal, Jack’s efforts prove vital to the family’s infrastructure. The narrator notes that the "bamboo was exactly what I needed" for a new project: a weaving loom for his wife. The loom becomes an immediate success, allowing her to transform "spun cotton thread into fabric." This highlights the family’s ongoing transition from basic survival to establishing a more comfortable, civilized existence.
As the seasons shift, the urgency of their labor increases. With the realization that "winter would be fast approaching" and the "rains would be back" soon, the family focuses on long-term sustainability. The narrator utilizes the remaining bamboo to construct a sophisticated pipe system, drawing water from the river up to their cave dwelling. By creating suction, he ensures that "water ran up the pipe," providing a reliable water source for the winter months. The chapter concludes on a note of industrious preparation, emphasizing the necessity of harvesting and securing resources before the harsh weather returns, illustrating the family's persistent adaptability in the face of an unforgiving wilderness.