the Ring
Names: the Ringthe tombfour-dimensional Ring
First appears in Book 3: Death's End, chapter 38 (Post-Deterrence Era, Day 1–Day 5 Gravity and Blue Space, Deep Space Beyond the Oort Cloud)
Appearances
What you know
Book 3: Death's End
- Ch 38The Ring is a sealed true four-dimensional object, roughly 80 to 100 km across with a band about 20 km thick and circuit-like patterns. It is probably an abandoned ruin.
- Ch 38A dead, ring-shaped four-dimensional structure that calls itself a tomb of its creators; it was once a spaceship and replied to human messages.
- Ch 38It said the dark forest exists between civilizations of the same dimension but not between spaces of different dimensions.
- Ch 38It advised humans to leave the puddle at once, calling them fragile 'thin pictures' who would soon become tombs.
- Ch 38Using the metaphor of fish and a drying sea, it said the beings who dried the sea had moved from one dark forest to another.
- Ch 40The four-dimensional Ring confirmed dark forest theory, but it likely took the phrase from the Rosetta System's human history, and its brief, ambiguous usage does not show it understood the meaning.
Key moments
- Book 3 · Ch 38Discovery of the Ring and other objects
Telescopes inserted through warped points reveal a sealed, artificial ring and about a hundred other inactive four-dimensional objects. This is the first observation of another civilization besides Earth and Trisolaris.
- Book 3 · Ch 38Exploring the Ring
Guan, Zhuo and West fly a pinnace through four-dimensional space to the Ring, exchange prime-number bitmaps, and send the Rosetta System. The Ring declares itself a tomb and converses with them.
- Book 3 · Ch 38The Ring's warning and the gift
The Ring says the dark forest exists between civilizations in the same dimension, urges humans to leave the puddle, and receives Guan's ecological sphere before falling silent.
- Book 3 · Ch 38The Ring decays into three-dimensional space
The fragment shrinks and the ships exit. After twenty-two days the Ring enters three-dimensional space and decays into a one-AU line of light that becomes a dust belt. The ships collect some resources, and a council offers crews a choice to continue or return.
- Book 3 · Ch 40Review of the evidence for dark forest theory
The excerpt examines three pieces of evidence: the destruction of 187J3X1, Trisolaris's fear of deterrence, and the Ring's confirmation. It finds each scientifically inconclusive, and public opinion in the Broadcast Era shifts toward calling the theory a delusion of cosmic persecution.