Story Structure — 5 Plot Phases
The Endurance Experiment
A committee studying human survival capacity discovers evidence of extraordinary mental power. A collective psi-wheel test turns scientific inquiry into a threatening mystery.
Key Events
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Endurance Research Begins — The committee studies human survival capacity for the space program.
Location: Committee research center
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Anonymous Screening Tests — Anonymous questionnaires are used to identify people with unusual endurance.
Location: Research center
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Super-Intellect Announcement — The committee hears that one member may possess extraordinary mental abilities. Characters: Arthur Nordlund
Location: Committee meeting room
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The Psi Wheel Test — The committee concentrates together, causing the psi wheel to spin. Characters: Arthur Nordlund
Location: Committee meeting room
Murder Among Researchers
The lead researcher is murdered in a laboratory, leaving behind a cryptic name. Suspicion falls on a committee member when his academic history appears falsified.
Key Events
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Laboratory Murder — The lead researcher is found murdered inside the human centrifuge.
Location: Laboratory centrifuge
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The Mysterious Name — A paper bearing the name of a childhood friend is discovered in the office.
Location: Researcher's office
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Childhood Identity Explained — The murdered researcher's widow identifies the name as his childhood friend's.
Location: Private residence
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Credentials Come Under Suspicion — An investigator becomes the prime suspect after his academic records disappear.
Location: Research center
The Invisible Attack
Hallucinations and psychic violence threaten the suspected investigator. He travels to the researcher's hometown to uncover the truth behind the mysterious identity.
Key Events
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Hallucinations Begin — The suspected investigator experiences bizarre hallucinations after the murder.
Location: Unspecified interior
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Psychic Assault Survived — The investigator narrowly survives an apparent psychic attack.
Location: Unspecified interior
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Journey to the Hometown — The investigator travels to the hometown to investigate the mysterious identity.
Location: The researcher's hometown
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Conflicting Descriptions — Residents provide contradictory descriptions of the suspected superhuman.
Location: The researcher's hometown
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Old Commands Remain — Several people still obey commands issued by the suspected superhuman years earlier.
Location: The researcher's hometown
The Committee Falls
More committee members are killed or exposed as connected to the hidden superhuman. The investigation returns to the research center as distrust reaches its peak.
Key Events
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Committee Search Intensifies — The investigator and an ally search for the remaining committee members. Characters: Arthur Nordlund
Location: Research center
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Second Committee Murder — A committee physicist is murdered during the investigation.
Location: Unspecified location
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Another Attack Staged — Arthur Nordlund apparently survives another psychic assault. Characters: Arthur Nordlund
Location: Unspecified location
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Ally Revealed and Killed — A committee member is revealed as an ally of the hidden superhuman and is then murdered.
Location: Unspecified location
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Research Center Confrontation — The investigator confronts a suspected superhuman while police approach. Characters: Arthur Nordlund
Location: Research center
Power Revealed
Arthur Nordlund is exposed as the attacker and launches a final psychic assault. His intended victim awakens matching powers and turns them against him.
Key Events
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Research Center Confrontation — The investigator confronts a suspected superhuman while police approach. Characters: Arthur Nordlund
Location: Research center
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Fatal Police Misjudgment — The frightened suspect is shot by police after pleading for his life.
Location: Research center
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Arthur's Hidden Identity — Arthur Nordlund is revealed as the hidden superhuman behind the attacks. Characters: Arthur Nordlund
Location: Final confrontation site
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Psychic Duel — Arthur launches another psychic assault against his remaining rival. Characters: Arthur Nordlund
Location: Final confrontation site
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Power Turns Against Arthur — The investigator awakens his own psychic powers and kills Arthur with them. Characters: Arthur Nordlund
Location: Final confrontation site
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The True Subject Identified — The survivor realizes that the endurance tests had identified him as the true superhuman. Characters: Arthur Nordlund
Location: Final confrontation site