The Observer's name was Lian Xu, and he had been a junior deity for three hundred and forty years without incident.
This was, by celestial standards, an unremarkable career. He processed reports. He monitored assigned locations. He flagged anomalies and forwarded them upward through the appropriate channels. He had never requested early retirement. He had never filed an inconclusive report. He had, over the course of three and a half centuries, developed a reputation for being precisely what the celestial hierarchy valued most: reliably boring.
He arrived at the Ye estate on a Wednesday morning, invisible to mortal senses, with a full suite of divine measurement instruments and a standard monitoring assignment brief. The assignment was simple: observe the Ye heir at close range, obtain accurate power readings, determine the current rate of God Seed development, and return with a comprehensive assessment within thirty days.
He left on Thursday.
The first measurement attempt occurred in the garden, where the young master — age nine, according to the file — was sitting in a patch of sunlight eating crackers and apparently watching a beetle move across a stone with the focused attention of someone who had nothing more important to do.
Lian Xu activated his first instrument: a Celestial Resonance Reader, sensitive enough to detect the spiritual residue of gods who had passed through a location three centuries prior. He pointed it at the boy.
The instrument produced a sound it had never produced before. Lian Xu looked at it. He tapped it twice. He looked at it again. The reading displayed was not a number. It was a question mark, which was not a symbol that existed in the instrument's output language and therefore should not have been physically possible.
He moved to instrument two.
The second instrument — a Pillar Depth Scanner, capable of reading cultivation development through walls and at a range of five hundred meters — produced results so far outside its measurement scale that the display simply went dark and stayed dark.
Lian Xu stared at the dark display. He stared at the boy in the garden. The boy had not looked up from the beetle.
Interesting, Lian Xu thought, in the way that people think interesting when what they actually mean is concerning.
He moved to instrument three through seven.
All seven produced variations on the same result: nothing readable, something unquantifiable, an absence of data where data should be that felt less like a blank and more like a door with no handle.
On the afternoon of his first day, Lian Xu had a thought he had never had in three hundred and forty years of service: that the equipment might not be broken.
He was not yet prepared to follow that thought to its conclusion.
He remained near the estate for three more days, adjusting his approach. He tried measuring from different angles. He tried measuring at different times of day. He catalogued every incidental power leak he could detect — the furniture rearrangements that happened overnight, the occasional weather anomaly directly above the estate, the tendency of electronics to behave uncertainly when the young master was in a bad mood — and assembled them into a comprehensive record.
The record was comprehensive. It was also completely uninterpretable.
On the fourth day, while Lian Xu was stationed in the estate's inner courtyard attempting a seventh round of measurements, Ye Feng walked into the garden with his crackers and his bored expression and sat down in the same patch of sunlight as before.
He sat there for a long moment.
Then, without looking up, he said: "You're still here."
Lian Xu froze. He was invisible. He was operating under a full celestial concealment array that had hidden beings of his rank from deities three grades above him. There was no mechanism by which a nine-year-old mortal child should have been able to detect his presence.
"Excuse me?" Lian Xu said, before he could stop himself.
Ye Feng finally looked up. He looked in exactly the right direction — not scanning, not guessing, but looking at the precise location where Lian Xu was standing, with the mildly interested expression of someone who has noticed something that doesn't require urgent action.
"You have been here for four days," Feng said. "You are measuring things. They are not working, are they."
It was not a question.
Lian Xu opened his mouth. Closed it.
The equipment isn't broken, he realized, with the specific clarity of a thought that arrives late and settles heavily. It was never broken.
"I am a celestial observer assigned to—"
"I know what you are," Feng said, with the patient tone of someone explaining something obvious. "You smell like the starlight robes. The one who came when I was born had them too." He looked back at his crackers. "Your instruments don't work because there's nothing to measure. Or there's too much. I'm not sure which. Probably both."
He held out the cracker bag.
"Do you want one?"
Lian Xu left the following morning. His report, filed three days later from a position far enough from the estate that his hands had mostly stopped shaking, contained three lines.
The first described the measurement failures.
The second described the garden conversation.
The third read: Request transfer to administrative division. Will accept any post that does not involve field observation of Class Unknown subjects. Reason: personal.
The Master of Heaven read the report twice. Then he set it on his desk and looked at the ceiling of his celestial throne room for a long time.
"Well," he said, to no one.
He refiled the report under Patience and did not open it again.
At the Ye estate that evening, Ye Zhan found his son in the kitchen, making himself a late-night snack with the focused attention of a chef who takes crackers seriously.
"There was someone in the courtyard," Feng said, without looking up.
Ye Zhan was quiet for a moment. "Yes. We noticed the energy readings."
"He was measuring things. It didn't work."
"Did you speak to him?"
A pause. "A little."
Ye Zhan looked at his son — this small, ordinary-faced, absolutely extraordinary boy who had just apparently held a casual conversation with a celestial observer and offered him crackers — and felt the specific complicated emotion that had been his primary internal state since the night of Ye Feng's birth. Not fear. Not exactly. Something closer to the feeling of standing next to a very large fire and understanding that how you stand matters enormously.
"Feng," he said. "How did you know he was there?"
The boy considered this.
"I don't know," he said finally. "I just — knew. The way you know when a room's temperature changes. Something in the air was paying attention." He found the last cracker in the bag and ate it thoughtfully. "He left. I don't think he'll come back."
He hopped off the counter, said goodnight with the economy of a person who found words adequate for their purposes but not especially interesting, and disappeared down the hallway toward his room.
Ye Zhan stood in the empty kitchen for a while.
Fifteen years, the deity had said. The seal holds fifteen years.
His son was nine.
He went to find his wife.