Inside the cabin of the *Shadow Eclipse Leviathan*, the air circulation system emitted a low, rhythmic gasp. Ada's holographic projection glowed with a cold blue halo in the dimness; her logic core was in some state of deep retrieval, data streams sweeping rapidly through the depths of her amber pupils.

  "Ma Feili, our route ahead will pass through Sector 7 of the 'Rust Cloud Boundary.'" Ada turned her head, her voice carrying some compressed emotional fluctuation. "Before entering that region, I need to show you a local archive. This concerns the navigation beacon we'll be relying on—and the people who built it."

  She extended her pale metal fingertips and traced lightly through the void. The holographic projection instantly unfolded, drowning the narrow cockpit in rust-red nebula light.

  ---

  ## Archive Number: 217 "The Rust Anchor Lighthouse: The Last Watchmen"

  ### 【Act One: An Island at the Frontier of Entropy Increase】

  **Great Migration Epoch, Year 4089.**

  At the most remote edge of the "Nomad Belt," there lay a star domain called the "Rust Cloud Boundary." It was filled with abandoned mining debris, scrapped thruster fragments, and countless ship hulls destroyed in interstellar wars and left to drift. Rust-colored dust clouds rotated slowly under gravitational pull, forming an almost impassable navigation forbidden zone spanning dozens of light-minutes.

  In this deathly silence, the "Chronos-7" Armed Lighthouse stood like an iron nail driven into the void, solitary at the throat of the shipping lane.

  It was not beautiful. The octagonal main structure was welded together from salvaged warship armor, its surface covered with pockmarks from micrometeorite impacts and scorch marks from plasma burns. The beacon array at the top resembled a cluster of deformed metal tentacles, emitting a pallid navigation pulse in all directions every thirty seconds. In the instant that pulse swept past, every piece of debris within a hundred-kilometer radius would be briefly illuminated, like countless dead souls opening their eyes in the darkness.

  At the lighthouse's base was a simple habitation module, housing three people.

  **Zheng Tiezhen**, the lighthouse supervisor, a fifty-seven-year-old retired fleet engineer. His right arm had been severed by a plasma cutter during a pirate attack fifteen years ago, now replaced with a crude hydraulic prosthetic he had obviously assembled himself. The joints of that prosthetic often emitted ear-piercing metallic friction sounds, but Zheng Tiezhen never minded—in his view, if it worked, it worked.

  **Su Qing**, communications officer, thirty-four years old, formerly a low-level intelligence analyst for the "Entropy Observation Council." She had been exiled here after being made a scapegoat in a data breach incident. Her eyes always carried an excessively vigilant, neurotic gleam, as if constantly awaiting the next betrayal.

  **Ah Yin**, nineteen years old, the lighthouse's handyman and apprentice. No one knew his full name, nor where he came from. Three years ago, Zheng Tiezhen had found him in the wreckage of a drifting refugee ship—he was only sixteen then, curled up inside the malfunctioning shell of a cryogenic hibernation pod, having survived for forty-seven days by licking condensation from pipes.

  "This was the complete personnel configuration of 'Chronos-7,'" Ada's voice sounded softly beside the holographic display. "Three people abandoned by mainstream civilization, guarding a lighthouse forgotten by mainstream shipping lanes. Yet this lighthouse prevented at least seventy-three documented pirate raids."

  ### 【Act Two: Wolves in the Rust Cloud】

  Pirates were the norm in the "Rust Cloud Boundary," not the exception.

  Those refugees who had lost everything in resource wars, genetic defectives expelled by the Houses, and desperadoes driven purely by greed gathered in the depths of the rust cloud, surviving by raiding passing merchant ships. Their vessels were mostly cobbled-together scrap metal, but in this star domain full of interference and concealment, radar was almost completely ineffective, while they knew every hidden route like the backs of their hands.

  The existence of "Chronos-7" was a thorn in their eyes.

  The lighthouse's beacon pulse could penetrate the rust cloud's interference, providing merchant ships with precise navigation coordinates. More importantly, the lighthouse was equipped with an old but still lethal "Hive" defense system—twelve auto-tracking turrets and an electromagnetic interference array capable of covering a three-kilometer radius. Any unidentified flying object approaching the lighthouse would be automatically locked and warned; if it did not respond, it would be mercilessly destroyed.

  But the pirates were not without patience.

  On November 7th, Great Migration Epoch Year 4089, a pirate gang calling themselves "Iron Rust Shroud" launched the largest siege in recorded history. They had begun laying groundwork three months earlier—quietly deploying electromagnetic mines among the debris around the lighthouse using drones, while sending decoy ships to constantly probe the "Hive" system's response thresholds.

  The attack began at standard time 03:17.

  Zheng Tiezhen was jolted awake by the alarm. He rushed shirtless into the control room, the joints of his hydraulic prosthetic emitting sharp wails from the violent movement. On the holographic screen, twenty-three red dots were closing in from all directions, while four of the lighthouse's defense turrets had already entered cooldown from previous decoy expenditure.

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  "Su Qing! Emergency frequency—call for support!"

  "It's useless." Su Qing's voice came from the communications station, carrying an almost numb calm. "The nearest patrol fleet is seven light-hours away. By the time they receive the signal, we'll have long been frozen meat chunks floating in vacuum."

  "Then we hold it ourselves." Zheng Tiezhen gritted his teeth, hands flying across the control console. "Ah Yin! Get to Compartment Three! Manually activate the backup generator! We need more power for the interference array!"

  Ah Yin said nothing, just nodded and turned to dash into the dim corridor.

  ### 【Act Three: The Measurement of Cost】

  The next forty-seven minutes were the longest forty-seven minutes in the history of "Chronos-7."

  Zheng Tiezhen single-handedly operated the eight still-functioning turrets, chasing those cunning red dots on the radar screen. The pirates' tactics were simple yet effective—they split into multiple groups and approached simultaneously from different angles, forcing the lighthouse's firepower to disperse. Every time a pirate ship was destroyed, two more would take the opportunity to close the distance.

  Su Qing frantically scanned all frequencies at the communications station, trying to find any possible channel for help. Her fingers trembled on the keys, sweat sliding down her cheeks—not from fear, but because she knew better than anyone that in this forgotten star domain, no one would come to save them.

  And Ah Yin, in the darkness of Compartment Three, was wrestling with a fusion generator on the verge of breakdown.

  That generator had been in service for thirty years; half the indicator lights on its control panel had long gone dark. Ah Yin had to manually adjust coolant flow, monitor core temperature, and pray that those aging seals wouldn't rupture at this critical moment. His hands were blistered by scorching pipes, but he dared not stop—he knew that if the generator stopped, the interference array would fail, and once it failed, the pirates could precisely target the lighthouse's core compartments.

  "Ma Feili, note this data." Ada's voice cut into the scene, fingertip tracing a set of red power consumption curves. "During those forty-seven minutes, Ah Yin kept the generator's output at 147% of rated capacity. According to standard engineering manuals, at this overload state, the explosion probability was 89.7%."

  "Did he know?" Ma Feili asked.

  "He knew." Ada's voice paused slightly. "But he chose to stay there."

  ### 【Act Four: The Lighthouse Does Not Go Dark】

  The attack ended at standard time 04:04.

  Not because all the pirates were eliminated, but because their losses had exceeded the tolerable threshold. Of twenty-three attack ships, fourteen were destroyed, three retreated after severe damage, and the remaining six scattered after losing unified command.

  The lighthouse's price was equally heavy.

  Of twelve turrets, only three could barely function. The main beacon array had been hit by an armor-piercing round, output power reduced by 60%. The habitation module's oxygen circulation system was leaking and had to be repaired within twelve hours, or all three would suffocate.

  And Ah Yin, seven minutes after the attack ended, was found by Zheng Tiezhen collapsed on the floor of Compartment Three.

  The generator had not exploded. But the continuous high-temperature overload had caused massive radiation leakage, and Ah Yin, in that cramped space, had endured forty-seven minutes of exposure completely unprotected. When Zheng Tiezhen dragged him out, his skin was already showing the characteristic red patches of radiation burns.

  "Old Zheng... the lighthouse... is it still lit?" Ah Yin's voice was so weak it was almost inaudible.

  Zheng Tiezhen did not answer. He only gripped Ah Yin's already-trembling fingers tightly with his intact hand.

  Su Qing stood before the control room viewport, watching that pallid beacon pulse still flash once every thirty seconds in the distance. Her eyes reddened, but no tears fell—in this cold universe, she had long learned to swallow her tears.

  "The lighthouse is still lit," she said softly, her voice hoarse as if squeezed from a rusted throat. "It's always been lit."

  ### 【Act Five: Inscription and Forgetting】

  Ah Yin died twenty-three days later from acute radiation syndrome.

  Zheng Tiezhen personally placed his remains in a simple metal coffin, then pushed it into the void outside the lighthouse. In this rust-red nebula, that small coffin quickly disappeared among the endless debris, becoming part of the "Rust Cloud Boundary's" eternal drift.

  But on the lighthouse's base, Zheng Tiezhen used a plasma welding torch to inscribe, stroke by stroke, a passage of text:

  > **Great Migration Epoch Year 4089, November 7th**

  > **"Chronos-7" Armed Lighthouse Defense Battle**

  >

  > **Fallen: Ah Yin, 19 years old, Handyman**

  > **Cause of death: Radiation leak from Compartment Three fusion generator**

  > **Cumulative overload operation time: 47 minutes**

  > **Lighthouse operational status: Normal**

  >

  > **He was not a hero. He was just someone who refused to let the light go out.**

  This text was later inadvertently recorded by a passing merchant ship captain and entered into the "Nomad Belt's" folk archive. Later still, it was reposted, rewritten, and even dramatized by some irresponsible media into a romanticized "lone hero" story. But the true version was just this—no heroic last words, no touching background music, only a nineteen-year-old youth, beside a generator about to explode, gritting his teeth for forty-seven minutes.

  "Chronos-7" lighthouse operated for another thirty-seven years after that, until the "Nomad Belt Federation" established a new automated navigation network in the region. Zheng Tiezhen died of heart failure the year before the lighthouse was decommissioned; Su Qing's whereabouts became unknown—some said she returned to "Entropy Observation Council" territory, others said she opened a tavern on some nameless asteroid.

  The lighthouse itself was sold as scrap after decommissioning. Its fate was the same as countless abandoned space stations—dismantled, melted down, recast into some unremarkable part of some new ship.

  But that text inscribed on the base, before dismantling, was carefully cut away by some unknown worker and is now housed in a small museum in "Rust Cloud Boundary Sector 7."

  ---

  The holographic projection slowly contracted, finally becoming a faint light point that quietly extinguished at Ada's fingertip.

  "Ma Feili," Ada turned her head, rust-red nebula from beyond the viewport reflected in her amber pupils, "in the 'Nomad Belt,' no one remembers those nameless ones who guarded the shipping lanes. Their names won't appear on any official monuments; their stories won't be written into any formal historical archives."

  She walked to the control console, hands lightly sweeping across the sensor arrays.

  "But every merchant ship that safely passes through this star domain, every passenger who arrives alive at their destination, is proof that they existed. This proof needs no language, no records, only—"

  "The lighthouse is still lit." Ma Feili took over her words.

  Ada nodded slightly; her logic core emitted a soft, almost satisfied hum.

  "Yes. The lighthouse is still lit."

  The *Shadow Eclipse Leviathan's* engines emitted a deep rumble; the ship trembled slightly and began accelerating toward Sector 7 of the "Rust Cloud Boundary." Beyond the viewport, in the distance, a pallid glow was faintly visible, flashing once every thirty seconds.

  That was the beacon pulse of "Chronos-7's" successor—"Chronos-23."

  Thirty-seven years had passed; the lighthouse had changed generation after generation, the watchmen batch after batch. But that light had never gone out.