Story Structure — 5 Plot Phases
The Door Beyond Time
A schoolboy follows a mysterious woman and discovers a hidden time-transfer device. He arrives at a future research institute and begins exploring an unfamiliar world.
Key Events
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Strange Woman Followed — Two schoolboys follow a mysterious woman into an abandoned house.
Location: Near an abandoned house
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Secret Door Discovered — A hidden door leads from the basement to a room containing a technical device.
Location: Abandoned house basement
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Time Device Activated — Pressing the controls activates a device that transfers the visitor elsewhere.
Location: Secret chamber
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Future Institute Arrival — The visitor arrives at a future institute where returned artifacts are inventoried.
Location: Institute of Time Research
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Android Inventory Encounter — An android catches the visitor and initially treats him as an inventory subject.
Location: Institute corridors
Pirates at the Spaceport
The visitor reaches a spaceport and witnesses shape-shifting aliens replacing workers and an elderly man. The pirates identify the mind-reading device as their target.
Key Events
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Future Wonders Explored — The visitor observes teleportation, humanoid aliens, antigravity, and space travel.
Location: Future city
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Spaceport Access Attempt — An attempt to obtain an interplanetary ticket fails, but a school group provides access.
Location: Spaceport
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Aliens Replace Workers — Two shape-shifting aliens emerge from a crate and impersonate stunned service workers.
Location: Spaceport transit area
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Pavel Impersonated — The aliens lure away an elderly man, stun him, and assume his appearance.
Location: Spaceport waiting hall
The Stolen Myelophone
The pirates attack the interplanetary zoo, but the device is recovered during an air chase. The pursuit returns to the institute, where an android sacrifices himself and the pirates follow through time.
Key Events
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Myelophone Targeted — A disguised alien learns that the mind-reading device is held at the interplanetary zoo.
Location: Spaceport waiting hall
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Zoo Theft Attempt — The pirates steal the mind-reading device while animal minds are being examined.
Location: Interplanetary zoo
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Myelophone Recovered — Help from a man and a talking goat enables recovery of the device during an air chase.
Location: Interplanetary zoo and airspace
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Institute Sacrifice — An android sacrifices himself while trying to stop the pursuing space pirates.
Location: Institute of Time Research
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Pursuit Through Time — The pirates use the time machine to follow the fleeing visitor into the twentieth century.
Location: Institute of Time Research
Secrets in the School
After a trolleybus accident, the future visitor hides in a hospital and later enters a twentieth-century school. The children try to identify the correct schoolboy while the pirates conduct surveillance.
Key Events
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Trolleybus Accident — The future visitor is struck by a trolleybus after arriving in the twentieth century.
Location: Twentieth-century city street
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Hospital Concealment — The injured visitor fakes amnesia while discussing future subjects with a roommate.
Location: Hospital
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School Search Organized — The future visitor is temporarily enrolled at school to locate the correct schoolboy.
Location: School and residential building
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Pirate Surveillance — The pirates monitor both the school and the girls' temporary residence.
Location: School and neighborhood
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Schoolbag Diversion — The mind-reading device is hidden in a schoolbag while a disguised pirate searches for it.
Location: School classroom
The Abandoned House Showdown
The pirates capture the schoolboy and take him to the abandoned house. The children locate the hideout with the mind-reading device, and an officer finally defeats the pirates before the future visitor departs.
Key Events
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Kolya Captured — A confession distracts the pirates, but the schoolboy is eventually stunned and abducted.
Location: City streets
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Mind Reading Search — The children use the device to scan thoughts and locate the abducted boy.
Location: Residential building
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Abandoned House Siege — The pirates interrogate the captive, impersonate him, and fight the rescuing children.
Location: Abandoned house
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Pirates Defeated — An arriving officer survives blaster fire with a force field and paralyzes the pirates.
Location: Secret chamber
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Future Visitor Departs — The future visitor says goodbye, enters the chamber, and closes the door.
Location: Secret chamber