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Content snapshot
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Violence
Some
Military conflict and violence as geopolitical tensions escalate; some deaths in battle
Language
Barely any
Mild language; technical and literary prose
Sexual Content
Barely any
No sexual content
Substance Use
Barely any
None
Emotional Intensity
Some
The existential weight of encountering something humanity cannot fully comprehend; geopolitical tension creates sustained unease
What this book is about
A hollowed-out asteroid enters the solar system and proves to be an artificial construct from the future—with a corridor that extends infinitely through time. Greg Bear's ambitious hard science fiction novel unfolds against the backdrop of a near-future geopolitical crisis, combining first-contact wonder with military thriller.
Notes for sensitive readers
Reader-flagged moments and themes that may affect your experience.
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