Chapter Nine: The Final Echo of Möbius

The tip of the brass key pressed against Kane’s chest, the crimson numbers on the pocket watch stabbing at his retina: 70:21:00:00. The moment the countdown reached zero was also the instant the cycle would restart. The version of himself inside the sphere’s eyes shimmered like stars, silently awaiting this choice that had been repeated billions of times.

Kane’s fingertips trembled slightly. The coldness of the key seeped through his protective suit, like a piece of ice that would never melt. To pierce through meant an end—perhaps to this endless loop, or to himself. But to maintain the status quo? To become the next tormented core trapped within the quantum sphere? To let the toxic fog of New York, the corrosion of London, the nuclear blast of Tokyo, endlessly cycle forever?

“No.” The word was squeezed out from between his teeth, carrying a rusty, metallic tang of blood.

He suddenly raised his head, his gaze blazing as he looked at the self within the sphere. “There is a third choice.”

The key flipped in his palm, its tip no longer aimed at his heart but at the warped air between the floating sphere and the ground. Flickers of images from the memory crystal flashed back—the initial ring was both an anchor and the fragile node of the entire Möbius structure. The black cube’s message, the whisper of the aging Kane, the resonance frequency of 7.1 Hz... all clues converged into a lightning strike at this moment.

“The system requires a carrier, but not a prisoner,” Kane’s voice echoed inside the spherical space. “It requires... an error.”

He raised the pocket watch, thumb pressing the crown, and yanked sharply outward!

The watch emitted a sharp metallic scraping sound as the crown popped out to the first notch—the time adjustment mode. Without hesitation, Kane rotated the crown, setting the hand to 7.1.

The entire spherical space trembled violently! One black panel after another on the wall sparked and cracked, the timelines displayed began to distort and tear. The liquid inside the floating sphere boiled and churned, the “self” within it widening his eyes, the starry pupils flickering with shock that quickly turned to... relief?

“You... finally... understand...” The fractured voice directly entered Kane’s mind; it was the self inside the sphere speaking. “Not to break... but to disrupt the frequency...”

Kane felt the watch heat up in his hand, the 7.1 Hz vibration transmitting from the metal casing into his bones. Without hesitation, he inserted the brass key into the crown’s hole—a perfect fit.

“The most fragile point of the Möbius ring,” Kane said, locking eyes with the self inside the sphere, “is its perfect symmetry.”

The key turned a quarter turn.

A hum—

A vibration beyond the realm of hearing swept through the entire space! Spiderweb-like cracks appeared on the surface of the initial ring’s sphere, pale blue liquid spurting from the fractures! The ouroboros patterns on the walls extinguished one by one like snuffed-out stars.

The self inside the sphere began to dissolve, but a faint smile appeared on his lips. His figure transformed into countless points of light, swirling and rising in the liquid, finally coalescing into a beam of light that shot straight into Kane’s forehead!

“Accept it... this is the memory of all cycles... and the last fragment of the key...”

The moment the light flowed in, Kane saw a microcosm of billions of cycles: his countless pauses in front of the kiosk during the New York mission, countless climbs beneath the London control tower, eternal burning in the Cairo furnace... and each time, the aged self transmitted the same message in different ways: 7.1 Hz, resonance frequency, the finest fracture in the perfect cycle.

The numbers on the pocket watch flickered wildly, jumping from 00:00:00:01 back to 71:00:00:00, then into gibberish. The brass key vibrated at high frequency in the crown hole, emitting a piercing metallic screech.

The spherical space began to collapse. Black panels peeled off in sheets, revealing the intricate quantum pipeline network behind, each section overloading and exploding one after another. Kane fell to his knees, clutching the watch that had reached its critical point. The Möbius siren had never sounded so shrill, as if ready to tear apart the fabric of spacetime itself.

“Frequency... must... misalign...” The last points of light in the sphere merged into Kane’s consciousness.

He understood. Summoning his final strength, Kane smashed the watch forcefully onto the ground! The moment the case shattered, he twisted the key sharply—not a perfect 7.1 Hz, but 7.10001 Hz.

A minuscule difference. Enough to tear apart the deity’s perfect closed loop.

Click.

Time froze at that instant. Then, as if in slow motion, the shards of the watch defied physics, spinning upward and recombining. But this time, a clear crack appeared across the ouroboros pattern on the dial. The Möbius siren transformed into a discordant, intermittent hiss.

The entire initial ring began to disintegrate. Not an explosion, but a more fundamental, mathematical unraveling. The ouroboros patterns on the black panels twisted and broke, becoming meaningless gibberish. The floating sphere twisted and morphed like invisible hands kneading clay, its shape constantly changing before finally vanishing with a “pop.”

Kane felt a strange weightlessness—not of his body, but of existence itself. He looked down at his hands—fine golden circuit-like patterns emerged on his skin, the memory of billions of cycles fusing with this body.

“So that’s it...” he whispered, “The carrier is not a container... but a virus.”

The pocket watch had ultimately reassembled, but unrecognizable. The time on the dial no longer flowed but was frozen at 7:10:00. The brass key was half-melted, permanently welded to the crown. The Möbius siren turned into a low, irregular hum, like a hiccup that would never be expelled.

The spherical space vanished completely. Kane found himself standing in a void, surrounded by countless fragments of timelines: the toxic fog of New York dissipating, London’s rusted gears stopping one by one, the nuclear flash in Tokyo suspended midair... All disaster scenes from the “cleanup” missions were frozen at this moment.

Then, like a receding tide, they began to slowly, irreversibly... fade away.

“System rebooting...” a cold mechanical voice echoed in the void. “Carrier anomaly detected... Ouroboros protocol failed...”

Kane laughed. Blood dripped from the corner of his mouth, but he laughed. The watch trembled faintly in his hand, no longer a perfect cycle, but a jagged, imperfect vibration. This was the true key—not to open anything, but to jam the gear that was supposed to run flawlessly.

The void began to recede. Kane felt himself falling, passing through countless shattered layers of time. In his final consciousness, he saw a familiar scene: the metal hall of the Time Bureau, black-clad supervisor Thorn staring in shock at the suddenly malfunctioning main control screen. Behind him, the faces of other supervisors were clearly visible—each one a variant of Kane himself.

It turned out everyone was a carrier. Everyone was a prisoner.

The last hiss of the Möbius siren echoed like a mocking laugh across all timelines.

Then, darkness.

Warm, peaceful, a darkness with no more cycles.