Harry

Harry is the first-person narrator of the expedition and its most persistent counterweight to Professor Hardwigg’s certainty. He brings geological reasoning and close observation to the underground journey, repeatedly testing claims against what the travelers encounter; when he becomes separated from his uncle and Hans, that observing voice is also exposed to danger and dependence. His recovered consciousness, with Professor Hardwigg at his side, makes survival itself a consequential turn in the expedition’s story.

Identity and Narrative Role

Harry occupies two positions at once: he takes part in the descent, and he retrospectively tells of it. His account places scientific argument beside physical experience, so that the reader encounters the journey not as an impersonal series of discoveries but through the judgments, doubts, and limited perspective of a traveler inside it. At times he challenges the conclusions drawn by Professor Hardwigg; at others, he admits that facts have to be taken as they are, even when he cannot yet reconcile them with established explanation.

The distinction between participation and narration is especially clear during the Central Sea crossing. At Professor Hardwigg’s direction, Harry keeps a regular log of the navigation, recording minute particulars, unusual phenomena, wind direction, sailing rate, distance, and incidents. He explicitly frames the subsequent account of the voyage as a story told from that log. The shift gives this part of the narrative a documentary basis: an extraordinary crossing is rendered through the routine particulars of observation and record-keeping rather than only through retrospective wonder.

Scientific Skepticism and Observation

Harry begins from the limits imposed by accepted science. He accepts that Saknussemm identified an entrance into the earth, but rejects as madness the supposition that Saknussemm or anyone else actually followed the route. When Professor Hardwigg presses him, Harry argues that both theoretical and practical scientific teaching make such a journey impossible. His objection is not a lack of curiosity; it is a demand that extraordinary claims answer to what science currently permits.

The disagreement sharpens over heat. Harry invokes the familiar estimate that temperature rises by one degree for every seventy feet of descent and reasons that the earth’s interior should be incandescent, with even metals and hard rock molten. The exchange establishes an enduring difference in method: Harry treats scientific principles as constraints that any explanation must address, while Professor Hardwigg declares himself indifferent to theories. Their dispute is therefore not simply about whether to proceed. It concerns whether prior knowledge should govern the interpretation of what the travelers find.

Harry’s scrutiny of fossils gives that conflict visible form. Seeing the outlines of fucus and lycopods on the walls, he worries that Professor Hardwigg is refusing to acknowledge their implications. He picks up an almost perfect shell, which he considers to have belonged to an animal resembling one of the present day, and presents it as evidence. The Professor identifies it as a shell of an extinct crustacean from the trilobite order and dismisses the need to draw anything more from it. Harry’s alarm at that composure shows how sharply observation and interpretation can diverge: the specimen is tangible, but its meaning remains contested.

The same habit of testing inference against measurement appears when the travelers estimate their depth. Harry calculates that they have reached a point where, under Iceland’s latitude, the terrestrial depth is about 1,583 leagues. He then invokes geological studies to challenge a reported distance of sixteen leagues, or fifty miles, as the extreme limit allowed for the earth’s crust. He also points to the temperature that known laws of increasing heat would predict at that depth. Yet he does not simply discard the observations when they refuse to fit the expected model. He offers the possibility that refractory lava, a poor conductor of heat, insulates the sides of the extinct volcanic chimney, and treats the hot-water jet as support for that explanation. He then asks to draw a rigorous conclusion from the calculations, presenting his reasoning as an argument to be examined rather than an unquestionable verdict.

Authority, Risk, and the Expedition

Harry’s skepticism does not make him a detached observer. At one point he tries to force Hans to rise and leave, furious at the prospect of allowing the guide to determine the travelers’ lives. Professor Hardwigg intervenes and tells him to calm down, arguing that Harry will get nothing from his devoted follower and should instead listen. The exchange brings out the limits of Harry’s influence within the party: he can challenge an interpretation and resist a decision, but his urgency does not make Hans obey him, and his uncle remains the person who redirects the confrontation.

That imbalance also appears in the Professor’s confidence about volcanic danger. Professor Hardwigg explains that steam vents grow more active before an eruption and disappear during one, when elastic gases retreat into the crater; if the steam remains habitual, its activity does not increase, and atmospheric conditions do not shift to heavy pressure and calm, he believes an immediate eruption is unlikely. He ends by insisting that science has spoken and must be obeyed. Harry is present as the listener to this pronouncement, which reverses the roles of their earlier argument: here the Professor invokes scientific authority to reassure, while Harry’s place in the scene is that of the person expected to accept the conclusion.

Separation, Rescue, and Survival

On August 7, after repeated descents have taken the party about thirty leagues into the earth, with nearly a hundred miles of rock, oceans, continents, and inhabited country above them, Harry walks ahead through a tunnel that has begun to run almost horizontally. He carries one of the two Ruhmkorff coils and is absorbed in examining layers of granite by its light. When he stops and turns, he discovers that he is alone. His first explanation is ordinary: perhaps he has walked too fast, or his uncle and Hans have paused to rest. He decides to go back, assuming that the slight ascent will not tire him. The moment turns his attention from geological strata to the immediate problem of finding the others.

The separation becomes an acoustic search across the underground passage. After the question reaches him, several seconds pass before Harry hears the answering call, a delay that seems to stretch into ages under the pressure of his excitement. The voice asks whether it is Harry, and he answers yes. Recognition and reply re-establish contact across the distance, turning sound into the means by which he can be found. The rescue is not only a return to the group: it ends a sequence in which the narrator who had been examining stone alone must rely on the others’ ability to hear and reach him.

When Harry regains consciousness, he is lying on thick, soft coverlets in semi-obscurity. Professor Hardwigg watches him with a grave expression and tears in his eyes; at Harry’s first sigh, he takes his hand, then cries out joyfully when Harry opens his eyes. He declares that Harry lives and tells him that he is saved. Harry answers weakly, addressing him as his good uncle. The scene makes the relationship’s emotional force explicit through gesture and response: the stern Professor who has often asserted authority now watches anxiously, clasps Harry to his heart, and greets his return to consciousness with relief.

Change and Significance

Harry’s course is not a simple conversion from skepticism to belief. He continues to measure claims against scientific teaching, but his record of the expedition also registers observations that unsettle the boundaries of accepted explanation. The fossils on the walls, the shell he collects, the depth calculations, and the heat argument each make the same problem concrete: what is seen, what science predicts, and what can responsibly be inferred are not always in agreement. His willingness to propose an insulating volcanic wall shows that skepticism can lead to provisional explanation rather than mere rejection.

The narrative also places that intellectual caution beside bodily vulnerability. Harry can calculate depth and contest a temperature estimate, yet the tunnel’s length separates him from his companions, and his eventual recovery depends on their answering voice and care. Meanwhile, the log he keeps for the Central Sea voyage makes systematic observation part of the means by which the extraordinary can be told. Harry’s role is thus both argumentative and documentary: he challenges his uncle’s certainty, records the expedition’s particulars, and supplies the human perspective from which scientific expectations meet the hazards of the journey.