Jonglor Municipal Psychiatric Institute

The Jonglor Municipal Psychiatric Institute is the central clinical setting for the investigation into the psychological trauma caused by the Tunnel of Mystery at the Jonglor Centennial Exposition. Located in the northern city of Jonglor, the institute is directed by the gaunt, angular Dr. Kelaritan 99, who summons Sheerin 501 of Saro University as an expert consultant on Darkness-induced mental disorders. The institute's director's office features huge windows on every side, displaying the full magnificence of the four-sun afternoon, a detail that underscores the contrast between the constant, brilliant daylight of Kalgash and the artificial Darkness of the Tunnel. The hospital itself is connected to the office by a glassed-in catwalk with a 360-degree view of the sky and the low gray-green hills encircling Jonglor, a passageway that momentarily lifts even the dour Kelaritan's spirits as he basks in the light of Onos, Dovim, Patru, and Trey.

Patients and Symptoms

The institute houses the most severe cases from the Tunnel of Mystery, including Harrim 682, a burly longshoreman who won a ticket in a city lottery and took his entire family on the ride. Harrim, a man of about fifty with great slabs of muscle and a thick insulating layer of fat, is described by Kelaritan as having worked thirty-five years on the Jonglor docks. He is the first patient Sheerin interviews. Harrim's trauma manifests in a complete symptom reversal over several weeks: initially he suffered from acute claustrophobia, refusing to go indoors at all, but later developed claustrophilia, becoming afraid to leave the hospital despite the bright sunlight visible through the windows. He tells Sheerin that he is afraid of "the Darkness" and that if he goes outside he will find himself in the Darkness again. The institute also houses Gistin 190, a schoolteacher with dark, intelligent eyes who cannot stop sobbing and whose coherent story degenerates into incoherent blurtings, and Chimmilit 97, a high school athlete and perfect physical specimen who, when Sheerin opens the blinds to reveal Onos blazing in the sky, can only say "The Darkness—the Darkness—" before trying to scuttle under his bed. Kelaritan explains that some patients are completely catatonic, while others require sedation at least half the time.

Sheerin's Clinical Work and Personal Reaction

Sheerin, a ruddy and far-from-gaunt psychologist who is innately suspicious of anyone of adult years who weighs less than half of what he does, finds the clinical work deeply affecting. He is surprised at how tenderhearted he has become after years in academia, and the sight of Harrim's breakdown—the big man's hands trembling violently as he relives the memory, culminating in racking sobs and convulsions—leaves Sheerin shaken. After the interview, Kelaritan sedates Harrim with a needle that produces a brief whirr of sound, and Sheerin, for the first time in his life, feels almost no appetite. The institute's lawyer, Cubello 54, is present throughout, representing the Exposition's interests and initially resistant to the term "victims," arguing that there is no necessary reason to think the deaths in the Tunnel resulted from the ride. Sheerin's professional opinion, delivered after he himself rides the Tunnel, is unequivocal: the Tunnel is deadly, and even the strongest psyche will take a terrible battering. He tells Cubello that if the ride reopens, every mental hospital in four provinces will be full within six months.

Narrative Role and Significance

The Jonglor Municipal Psychiatric Institute serves as the narrative entry point for the novel's central psychological theme: the catastrophic effect of Darkness on the human mind. It is here that Sheerin's firsthand experience with the Tunnel's victims—and his own subsequent ride—establishes the clinical reality of the mass madness that will later engulf the entire world during the eclipse. The institute's patients, particularly Harrim, provide the concrete evidence that even a brief, artificial Darkness can shatter the psyche, foreshadowing the universal insanity predicted by Sheerin and confirmed by the events of Nightfall. The institute's location in Jonglor, far from Saro City, also geographically separates Sheerin from the main action of the Observatory group until his return, making his eventual decision to witness the eclipse from the Observatory rather than hide in the Sanctuary a significant personal choice.