His knuckles scraped against the radiation‑covered rock wall of the corridor, and a shard of luminescent rock dust slipped from between Lin Ye’s fingers. He tightened his grip on the climbing pickaxe; the gradient‑colored dagger he’d just assembled from parts salvaged from a decommissioned printing module was strapped to his back, its blade etched with cryptic ancient runes that glowed faintly in the darkness.

The abandoned Wasteland Colony No. 70 had long since been combed through countless times by scavengers from all sides. No one could explain why the dagger’s original blueprints were hidden at the very bottom of a damaged core storage compartment—only a few barely legible annotations remained: “Opener, Gatekeeper.” Lin Ye swiped his tactical interface wristband to unlock access; the twin gears at the hilt turned gently along the curve of his knuckles, and the once‑solid blade began to tremble ever so slightly as the mechanism engaged. Fine, mist‑like silver particles seeped out from the rune patterns, coursing up his arm like veins under his skin.

A half‑century‑old colonial fragment described it not as a weapon, but as a key to unlock the “gateway” to an alien silicon‑based civilization’s ruins. With each turn of the gears, a dimensional boundary would yield, revealing another layer of reality. Lin Ye crushed the nerve‑stabilizing capsule beneath his tongue; its cool medicinal rush spread through his bloodstream, quelling the dizziness caused by the particles. Gripping the dagger, he pressed its blade into the concealed groove carved into the rock wall, perfectly matching the blade’s contour.

The entire ruin began to shake violently. Concrete debris rained down onto his shoulder armor, and Lin Ye let out a muffled grunt, jerking his head aside—but then he saw a soft, pale purple glow seeping from the groove. The light slowly crept upward along the gradient‑tinted blade, bathing the narrow corridor in a macaron‑hued gradient that mirrored the dagger itself.

No one knew what lay beyond the door. None of the first researchers who entered the ruins ever returned. Risking radiation exposure, Lin Ye had come here solely to find his sister, who had vanished after entering the site three years earlier.

The tremors gradually subsided, and the stone door slowly swung inward, turning in the direction of the gears. Beneath the stone, layers upon layers of overlapping whispers finally coalesced into clarity—a cry that had echoed for centuries reached Lin Ye’s ears: “All disappearances are merely shifts in dimension, a kind of eternal companionship.”

Lin Ye raised his hand to tap the locator on his wrist, still flashing his sister’s signal. His grip on the dagger did not falter as he stepped forward into the shadowy embrace of that gentle glow. Only the gears at the hilt continued to turn endlessly, emitting a faint, rhythmic meshing sound.