In this chapter, Axel grapples with the overwhelming anxiety of his impending voyage to the center of the Earth. While his uncle, Professor Lidenbrock, views the journey as the "greatest scientific discovery ever," Axel is paralyzed by the "risks" and the potential that they "might never return." His fear is grounded in practical, scientific concerns: the danger of an active volcano and the widely held "theory that the earth's core is boiling hot." Axel posits that at such extreme temperatures, matter would turn to gas, rendering human survival impossible. However, Lidenbrock dismisses these concerns, arguing that such "theories are only theories until they are proved true." The contrast between the uncle’s relentless optimism and the nephew’s trepidation serves as the primary emotional tension of the narrative.
Professor Lidenbrock’s influence on Axel is profound. Despite his "strange ways," Lidenbrock is portrayed as a "brilliant scientist" who has mentored Axel throughout his university years. Lidenbrock’s ability to frame the journey not merely as a gamble, but as a unique "opportunity" to uncover truths that have eluded other scientists, eventually ignites a spark of confidence in Axel. He begins to believe that they can indeed be "the first" to reach such depths. This moment of clarity, however, is fleeting, as Axel quickly descends back into a "state of panic" once he is away from his uncle’s infectious, singular focus.
Perhaps the most transformative interaction in the chapter occurs between Axel and his fiancée, Graüben. Initially, Axel assumes she will be the voice of reason that stops him from leaving. Instead, Graüben displays remarkable strength and support. She validates his worth, telling him, "You are the nephew of a great man. You are just as worthy as he is." Her perspective shifts the narrative from one of reckless danger to one of personal growth, framing the expedition as Axel’s "opportunity to prove yourself." Her "faith" in him acts as a psychological stabilizer, allowing Axel to face the inevitable departure with a renewed sense of purpose.
The final section of the chapter shifts from internal introspection to the frantic reality of preparation. Lidenbrock’s efficiency is startling; within hours, the house is transformed into a staging ground for the expedition, filled with "supplies and boxes of equipment." The urgency of the timeline—needing to reach Iceland and summit the volcano "before July"—leaves little room for Axel to dwell on his "nightmares of dark tunnels and endless pits."
Ultimately, the departure is marked by a poignant moment of commitment. Graüben’s promise—"You are leaving a fiancée here in Germany, but you will come back to a wife"—anchors Axel to his future. By the time they board the train, the fear of death is momentarily eclipsed by the promise of homecoming, setting the stage for the physical hardships of the journey ahead.