In this chapter of the narrative, the protagonist finds himself caught in a whirlwind of unexplained phenomena while aboard the Nautilus. From clandestine interactions with mysterious figures to the terrifying power of volcanic seas, the journey highlights the enigmatic nature of Captain Nemo and the extraordinary capabilities of his submarine.
While studying the "gobies" in the saloon, the narrator witnesses an unsettling sight: a man swimming in the deep sea. Initially fearing the man was a "shipwrecked" victim, the narrator is shocked to discover that the diver, known as "Pesca," is a "bold diver" who "lives more in the sea than on land." This encounter serves to peel back a layer of the Nautilus’s secrecy, revealing that Captain Nemo maintains connections with individuals who operate within his underwater world, far removed from the constraints of terrestrial society.
Perhaps the most perplexing event occurs when Captain Nemo reveals a "chest with iron locks" filled with "bars and bars of gold." The narrator observes the Captain arranging what he estimates to be "four thousand pounds of gold" with cold, calculated precision. The source of this wealth remains a haunting question for the narrator: "Where did he get this gold?" The subsequent delivery of these "millions," orchestrated by the Captain and his crew, leaves the narrator and his companions, Ned and Conceil, in a state of bewilderment. The gold represents not just vast wealth, but a hidden, independent economy that suggests Nemo’s operations are funded by vast, unseen reserves.
As the narrative progresses, the atmosphere on the ship shifts from one of financial mystery to physical peril. The narrator notices the ship "growing hot," eventually realizing they are "floating in a stream of boiling water." Captain Nemo explains that they are traversing a "volcanic part of the seas," where islands "sink under the waves only to rise again later."
This sequence is visually and physically intense, described by the narrator as "totally white" and later "red," with the sea boiling "like water on a stove." The narrator’s experience of "choking" and "gasping for air" underscores the extreme danger posed by these subterranean volcanic activities.
Ultimately, the chapter serves as a stark reminder of the hostile environment through which the Nautilus travels. The narrator’s realization—that "if Ned had chosen this part of the sea for our escape, we would never have made it out alive"—adds a layer of existential gravity to their situation. The ocean is not merely a path for travel; it is a chaotic, shifting, and often lethal force. Through these "strange happenings," the reader is reminded that Captain Nemo’s mastery over the submarine is the only thing standing between the crew and the unforgiving, volatile depths of the natural world.