Loyen—Isaiah

Loyen’s relationship with Isaiah is defined by the gap between routine medical attention and a hidden scientific purpose. He regularly examined the boy to determine whether he had been infected, while the investigation later reveals Loyen’s long-standing interest in a parasite that may have affected earlier Greenland expeditions.

Medical Attention and the Postmortem Clue

After Isaiah’s death, a forensic examination of his rain pants and body reveals a puncture that had been made after his heart stopped. Its circular mark resembles an impression left by a biopsy needle. The finding establishes that a tissue sample was taken after death, turning the question of Isaiah’s health into a question about what someone wanted to learn from his body.

The later explanation links the examination to Loyen’s concern about infection. Juliane had told Smilla that Loyen regularly examined Isaiah; when Smilla sees X-rays from the 1966 expedition, she concludes that the earlier deaths may have involved a parasite and that Loyen wanted to find out whether Isaiah had been infected. The evidence connects his repeated attention to Isaiah with a specific scientific suspicion, although it does not establish that Loyen himself took the postmortem sample.

The Expedition and the Parasite

The old X-rays show radically different patterns of damage: one preserves almost the entire spine, while another is a mass of fragments and shadows. Their examination raises questions about the bodies’ positions relative to the explosion, but Smilla comes to believe the expedition members did not die from the blast alone. She identifies a parasite as a possible cause and understands Loyen’s examinations of Isaiah as an effort to investigate whether the same danger had reached him.

A later laboratory scene supplies the biological context for that suspicion. Under a microscope, Tørk identifies a worm inside a water flea as the Arctic worm, a parasite whose ordinary life cycle links aquatic intermediate hosts with larger mammals. He describes it as normally associated with whales, seals, and dolphins, entering their musculature from the intestines. This account makes the prospect of infection in a human being an exceptional scientific problem rather than an ordinary diagnosis.

Loyen’s Scientific Ambition

Smilla interprets Loyen’s involvement as extending far beyond the immediate care of Isaiah. She says that he was a scientist whose chief interest was not money, but the possibility of a Nobel Prize, and that he had anticipated a scientific sensation since learning of the matter decades earlier. His attention to Isaiah thus belongs to a much longer pursuit: determining whether the parasite could infect humans and what such an adaptation would mean.

The explanation of the parasite’s altered behavior clarifies the scale of that pursuit. Tørk says that, after twenty-five years of work, the larva had adapted to the human immune system, could disguise itself using the infected person’s proteins, and developed far more rapidly in humans than in sea mammals. He further explains that the parasite can adapt to different fish, weakening one of the usual limits on its spread: dependence on a narrow range of transmitting hosts. These are claims made during the confrontation, not independent proof that Isaiah carried the parasite; the narrative presents Loyen’s examinations as an attempt to resolve precisely that uncertainty.

What the Relationship Reveals

Isaiah’s regular examinations acquire a double meaning in retrospect. They can be understood as medical surveillance for a suspected infection, but they also place the boy within Loyen’s broader scientific project. The relation is therefore markedly unequal: Isaiah is the person being examined, while Loyen possesses the expertise and the larger hypothesis that give those examinations their purpose.

The novel also connects this scientific pursuit to the authority of institutions and experts. Smilla reflects that people often accept scientific claims because they trust those who communicate them, even when they cannot verify the evidence themselves. Against that dependence, the concealed investigation surrounding Isaiah makes scientific attention ethically and emotionally charged: the boy’s health matters, but so does the possibility that his body has become evidence in a pursuit whose stakes exceed his individual case.