Chapter 14

Chapter 14 — "Seventy-Two Years"

TL;DR: Rocky tells Grace that 40 Eridani has roughly 72 years before serious dimming begins, and that his ship still carries enough spare Astrophage fuel to send Grace back to Earth alive.

Summary: The two engineers compare timelines. Earth has only a generation before catastrophic cold; Erid, larger and slower-evolving, has roughly 72 years before its star reaches the same crisis point. Then Rocky reveals something that breaks the suicide premise of the Hail Mary: the Eridian ship was provisioned for twenty-three crew, and Rocky is alone. There is enormous extra Astrophage fuel aboard. If they solve the Astrophage problem, Rocky can give Grace what he was never supposed to have — a way home. Grace, who had accepted his death weeks ago, has to absorb the possibility that he might live. They commit, formally and without ceremony, to working the problem together: figure out why Tau Ceti is immune, and bring the answer home to two worlds.

Key scenes:

• A side-by-side timeline diagram: Earth's clock, Erid's clock, both ticking down
• Rocky gesturing to the diagram of his ship's enormous fuel-bay reservoirs
• Grace's quiet, alone-in-his-half-of-the-tube reaction to the news that he might live
• The two of them shaking on the partnership in their respective species' way (a tap-rhythm on the hex-wall)

Characters present: Ryland Grace, Rocky

Locations / settings:

• The docking-tube hex-wall workbench, now adorned with shared diagrams and notes

Visual motifs: twin tick-down timeline bars colored gold and white, a cross-section diagram of the Eridian ship with massive fuel reservoirs drawn in gold, Grace's lone silhouette absorbing news against the Hail Mary's sterile interior, the hex-wall again as a compositional spine

Emotional tone: stunned, hopeful, grateful, committed

Confidence: high — the spare-fuel reveal is a major plot pivot and is consistent across summaries.