The knocking stopped.
Wu Han stood motionless.
Three knocks.
Then silence.
The wooden house seemed to hold its breath.
The old man remained beside the table, the strange wooden rod held loosely in his right hand.
Wu Han looked at the door.
Then at Omega.
"Scan again."
"Scanning."
A few seconds passed.
"No human physiological signature detected."
Wu Han's eyes narrowed.
"Thermal?"
"None."
"Motion?"
"None."
"Sound?"
"None."
Wu Han stared at the door.
"Then who knocked?"
"I don't know."
The old man whispered:
"Don't open it."
Wu Han looked at him.
"You said that before."
"I meant it this time."
Another knock.
Not three.
One.
The sound was soft.
Almost polite.
Wu Han's lower Dantian immediately responded.
The warmth spread through his abdomen.
His chest tightened.
The middle Dantian flickered.
The upper followed.
Then the fourth circle appeared again.
Inside his body.
Not in the holographic model.
Not in the meridian network.
It appeared behind all of them.
A separate structure.
Wu Han's breathing stopped.
"Omega."
"I see it."
"Can you identify it?"
"No."
"Is it physiological?"
"Not according to any current model."
"Energy?"
"Unknown."
"Can you map it?"
"Attempting."
The hologram expanded.
Wu Han watched as Omega reconstructed the structure.
The three Dantians appeared first.
Lower.
Middle.
Upper.
The meridian network connected them.
Then the fourth circle appeared.
It wasn't connected to the meridians.
It wasn't connected to the Dantians.
It was behind them.
Almost as if the entire human energy system existed inside something larger.
Wu Han's face tightened.
"That's not supposed to be there."
The old man stared at the projection.
"I've never seen it."
"Then why are you afraid?"
"Because I recognize the shape."
Wu Han turned toward him.
"From where?"
The old man didn't answer.
"From where?"
He finally pointed toward the door.
"The first time I heard the knocking."
Wu Han went still.
"You saw the fourth circle?"
"No."
"Then what did you see?"
The old man's expression became distant.
"I saw a person."
"Who?"
"I don't know."
"What did they look like?"
The old man swallowed.
"Like me."
Wu Han frowned.
"Yourself?"
"Yes."
"That doesn't make sense."
"I know."
"Was it a hallucination?"
"I thought so."
"Until?"
The old man looked at the door.
"Until he knocked."
Another knock.
Wu Han felt the fourth circle pulse.
The old man stepped backward.
"Don't answer."
Wu Han ignored him.
"Omega."
"Yes."
"Can you determine whether the door is physically present?"
"Yes."
"Is it?"
"Yes."
The author's narrative has been misappropriated; report any instances of this story on Amazon.
"Then something is standing behind it."
"No."
Wu Han looked at the device.
"You're contradicting yourself."
"The door is physically present."
"Then there must be something behind it."
"There is no detectable physical object beyond the door."
Wu Han's eyes narrowed.
"What do you detect?"
"Spatial distortion."
The old man immediately looked at Wu Han.
"How much?"
"Approximately 0.0004%."
The man's face went pale.
"That's enough."
Wu Han frowned.
"Enough for what?"
"Enough to open it."
The fourth circle pulsed again.
The temperature in the room dropped.
Wu Han could see his breath.
The old man raised the wooden rod.
"Stay behind me."
Wu Han looked at him.
"You've been hiding this for twenty-three years."
"Yes."
"And you expect me to stand behind you?"
"Yes."
"Why?"
The old man glanced at the rod.
"Because I've seen what happens when someone stands in front."
Wu Han didn't move.
Then the door handle turned.
Slowly.
The old man raised the rod.
Wu Han's muscles tightened.
The handle stopped.
Nothing happened.
Omega spoke.
"Spatial distortion increasing."
The fourth circle brightened.
GENESIS STATE: 0.011%
Then—
0.012%.
Wu Han's eyes widened.
"I didn't activate it."
"I know."
The old man whispered:
"That's why you need to leave."
Wu Han looked at him.
"Why?"
"Because it isn't responding to you anymore."
The fourth circle pulsed.
The door opened.
There was no one outside.
The village was visible.
The trees.
The road.
The mountains.
Everything looked normal.
Wu Han stared through the doorway.
Then he noticed something.
The sunlight had stopped.
A bird hung motionless in the air.
A leaf was frozen halfway through its descent.
Dust particles remained suspended.
Even the old man's robe had stopped moving.
Wu Han looked behind him.
The old man was frozen.
Completely still.
Omega was silent.
Wu Han's heart began pounding.
"Omega?"
Nothing.
He stepped outside.
The moment his foot touched the ground, the village changed.
Not physically.
Perceptually.
Everything became sharper.
The mountains seemed closer.
The sky seemed deeper.
The colors drained away.
Then the fourth circle appeared in the air.
Not inside his body.
In front of him.
A luminous ring.
Wu Han stared.
A figure stood inside it.
A man.
At first, Wu Han thought it was the old man.
Same height.
Similar build.
Then the figure turned.
The face was different.
Older.
Much older.
The skin was pale.
The eyes were completely black.
Wu Han stopped.
The figure looked at him.
"You're early."
Wu Han's instincts screamed.
He stepped backward.
"Who are you?"
The figure smiled.
"That's the wrong question."
Wu Han's expression hardened.
"Everyone keeps saying that."
"Because you're asking questions that belong to the old world."
Wu Han stared.
"What do you want?"
The figure looked toward his chest.
"The same thing you want."
"What's that?"
"To understand."
Wu Han's eyes narrowed.
"You're the observer."
The figure's smile disappeared.
"No."
Wu Han felt the fourth circle pulse.
"Then what are you?"
The figure answered:
"A witness."
Wu Han's mind raced.
"Are you human?"
The figure didn't answer.
"Did you come from somewhere?"
"No."
"Are you an artificial intelligence?"
"No."
"An energy-based life form?"
"No."
"Then what?"
The figure looked almost amused.
"You keep trying to give me a category."
"Because everything has one."
"That's what you believe."
Wu Han took another step forward.
"You know what I am."
"Yes."
"How?"
"I've been watching."
"From where?"
The figure pointed upward.
Wu Han looked.
The sky was no longer the sky.
It was a vast network.
Countless luminous points.
Countless structures.
And among them—
Earth.
Tiny.
Almost invisible.
Wu Han's stomach tightened.
"How long?"
The figure looked at him.
"Longer than your species has had a name for itself."
Wu Han stared.
"Why?"
"Because your species occasionally touches the threshold."
"And?"
"You always retreat."
"Why?"
"Fear."
Wu Han looked back at the village.
The frozen old man.
The motionless bird.
The silent world.
"What's different this time?"
The figure looked at Wu Han.
"You."
Wu Han felt the fourth circle respond.
"Why me?"
"Because you don't worship the threshold."
Wu Han frowned.
"What does that mean?"
"You don't call it divine."
The figure stepped closer.
"You don't call it supernatural."
Another step.
"You don't call it impossible."
Wu Han stared into those black eyes.
"You call it a problem."
The figure smiled.
"And problems can be solved."
Wu Han suddenly felt pressure throughout his body.
The three Dantians activated simultaneously.
The fourth circle expanded.
The meridians became visible.
The Qi inside them began moving.
Not wildly.
Precisely.
The figure watched.
"Interesting."
Wu Han felt the flow.
Lower.
Middle.
Upper.
The three were beginning to synchronize.
The fourth remained outside.
He focused on it.
The figure immediately raised a hand.
"Don't."
Wu Han stopped.
"Why?"
"Because you don't understand what you're touching."
Wu Han almost laughed.
"That's ironic."
The figure lowered his hand.
"You think the fourth circle is another Dantian."
"Isn't it?"
"No."
"Then what is it?"
"A boundary."
Wu Han's expression changed.
"Boundary between what?"
The figure looked toward the network in the sky.
"Inside."
Then toward the darkness beyond it.
"And outside."
Wu Han's chest tightened.
"Outside what?"
The figure looked at him.
"Your universe."
Silence.
Wu Han stared.
He wanted to reject it.
Everything in his scientific training told him to reject it.
But the problem wasn't whether the statement was impossible.
The problem was that he had already seen something that shouldn't exist.
And the fourth circle was still there.
"You're saying the universe has a boundary."
"No."
The figure shook his head.
"Your perception does."
Wu Han's eyes narrowed.
"Then what is outside?"
The figure smiled.
"That's what you are trying to discover."
The world suddenly moved.
The bird completed its flight.
The leaf hit the ground.
The wind returned.
The old man shouted.
"GET AWAY FROM IT!"
Wu Han turned.
The figure was gone.
The fourth circle vanished.
The door slammed shut behind him.
The village returned to normal.
Wu Han stood outside.
The old man rushed toward him.
"What did you see?"
Wu Han looked at him.
"You knew."
"I suspected."
"You knew."
The old man grabbed his shoulders.
"What did it say?"
Wu Han stared at him.
"It called itself a witness."
The old man's face went pale.
He released Wu Han.
"No."
"What?"
"It can't be."
"What can't be?"
The old man stepped backward.
"You shouldn't have seen it."
Wu Han's expression hardened.
"Why?"
"Because nobody sees the witness."
"I just did."
The old man shook his head.
"No."
He looked toward the sky.
"You didn't see it."
Wu Han frowned.
"Then what did I see?"
The old man's voice dropped.
"It saw you."
They returned inside.
Wu Han immediately connected Omega to the holographic projector.
"Replay the last five minutes."
"Processing."
The hologram appeared.
The village.
The doorway.
Wu Han stepping outside.
Then—
nothing.
The recording showed Wu Han walking outside.
No figure.
No fourth circle.
No distortion.
Nothing.
Wu Han stared.
"Run the raw sensor data."
"Processing."
The result was identical.
"No external anomaly detected."
Wu Han looked at the old man.
"You didn't record it either?"
The man shook his head.
"I saw you standing outside."
"What else?"
"Nothing."
Wu Han looked back at Omega.
"Then I hallucinated it."
The old man immediately answered.
"No."
"Then what?"
"I don't know."
Wu Han leaned against the table.
For the first time, uncertainty genuinely unsettled him.
Not because he lacked data.
Because the data itself contradicted his experience.
Omega suddenly spoke.
"There is one anomaly."
Wu Han looked up.
"What?"
"Your neural activity."
"Show me."
The hologram changed.
A section of the brain lit up.
"During the event, your visual cortex was minimally active."
Wu Han frowned.
"What?"
"Your auditory cortex was also minimally active."
"Then I couldn't have seen or heard anything."
"Correct."
Wu Han stared.
"Then what did I experience?"
Omega paused.
"I cannot determine."
The old man looked toward Wu Han.
"That's the problem."
Wu Han's eyes narrowed.
"Explain."
The old man sat down.
"You've been trying to measure Qi."
"Yes."
"Then you encountered something that doesn't need your senses."
Wu Han stared.
"You think it communicated directly with consciousness."
"Yes."
"Telepathy?"
"I don't know what to call it."
"Then don't."
Wu Han stood.
"Everything has to have a mechanism."
The old man smiled faintly.
"Then find it."
The rest of the day passed without another incident.
Wu Han spent hours analyzing the data.
He tested everything.
Neural activity.
Hormonal changes.
Electrical activity.
Blood circulation.
Variable Q.
Dantian synchronization.
Meridian activation.
Nothing explained the event.
At 6:43 PM, Omega generated a report.
"Your neural architecture changed during the event."
Wu Han looked up.
"Changed how?"
"Temporary increase in connectivity between regions associated with attention, memory, spatial perception, and interoception."
"How much?"
"Approximately 0.7%."
"That's not significant."
"Normally, no."
Wu Han frowned.
"Then what is significant?"
"The pattern."
Omega displayed the brain scan.
The neural pathways formed a shape.
Three circles.
Then a fourth.
Wu Han stared.
The fourth circle wasn't a physical structure.
It was a pattern of connectivity.
His brain had temporarily formed the same configuration.
The same configuration as the mysterious external structure.
The same configuration as the Genesis State.
The same configuration as the symbol that had appeared in his body.
Wu Han whispered:
"It wasn't outside."
Omega answered:
"Correct."
"It was inside my brain."
"Possibly."
"Then the witness didn't enter my consciousness."
"No."
Wu Han's expression changed.
"I entered its system."
Silence.
Omega didn't contradict him.
Wu Han looked toward the old man.
The man was staring at the data.
"You understand what this means?"
The old man shook his head.
"No."
Wu Han looked back at the hologram.
"It means consciousness isn't just an observer."
He pointed toward the fourth circle.
"It can become part of the system."
The old man stared.
"And if that's true..."
Wu Han finished:
"Then the ancient descriptions of spiritual consciousness may have been technical observations."
The old man slowly sat down.
For several minutes, neither spoke.
Then Omega interrupted.
"New development."
Wu Han turned.
"What?"
"Genesis State has stabilized."
"At 0.012%?"
"No."
The number changed.
GENESIS STATE: 0.013%
Wu Han stared.
"Why is it increasing?"
"I don't know."
"Any external signal?"
"No."
"Then what is causing it?"
Omega's response came slowly.
"You."
Wu Han frowned.
"I didn't do anything."
"Correct."
"Then why?"
Omega displayed the neural pattern.
The fourth circle was faintly visible.
"You no longer need to activate the system consciously."
Wu Han's expression hardened.
"Why?"
"Because the system has begun recognizing your intention before you act."
The room became silent.
Wu Han looked at the three Dantians.
Then the fourth circle.
Then his own reflection in the dark window.
He had spent months building Omega so he could understand the human body.
Now he was beginning to suspect that the system inside him was learning to understand him first.
Outside, night settled over the village.
The old man slowly closed the curtains.
"Don't train tonight."
Wu Han looked at him.
"Why?"
The old man hesitated.
Then:
"Because if the fourth circle appears again..."
He looked toward the window.
"...I don't think the witness will come alone."