Summer arrived with dust.
Not the dust of storms, but of travel.
For three days, the horizon shimmered with moving shapes until, at last, the first caravan appeared.
Thirty wagons.
Nearly a hundred camels.
Oxen pulling carts laden with timber, cloth, pottery, and barrels bound in iron.
The tribes had seen merchants before.
Never this many.
Children ran to the hilltops to watch the procession. Hunters paused their work. Even the horses seemed curious at the unfamiliar animals that groaned and swayed beneath their burdens.
Temür stood beside Arslan.
"They're early."
"They're cautious," Arslan replied. "Word of the peace reached them."
---
The caravan halted well beyond the nearest camp.
Its leader, a broad-shouldered man with sun-darkened skin and a neatly trimmed beard, approached alone, carrying no weapon.
He bowed in the southern fashion.
"I am Hassan, son of Idris."
Arslan returned the greeting with a nod.
"I am Arslan."
"My companions seek permission to trade."
Arslan glanced toward the wagons.
"You came a long way without knowing whether we'd welcome you."
Hassan smiled.
"A merchant who waits for certainty dies poor."
A few of the nearby warriors laughed.
Temür did too.
He liked the man already.
---
Trade began the following morning.
At first, everything seemed orderly.
A horse for bolts of silk.
Leather for iron tools.
Salt for spices.
But before midday, raised voices echoed through the market.
Two men argued over a sack of barley.
Each insisted the other had changed the measure.
Another dispute broke out over wool.
A third over dried meat.
By sunset, Arslan had settled six different arguments.
He looked exhausted.
---
That evening, Hassan accepted Temür's invitation to share a meal.
The merchant ate slowly, observing the camp more than speaking.
Finally, he asked,
"How long have these tribes been at peace?"
Temür considered the question.
"Only a few moons."
"It shows."
Temür looked up.
"What do you mean?"
Hassan gestured toward the market.
"They don't distrust me."
"They distrust each other."
The words lingered.
Temür replayed the day's arguments in his mind.
None of the disputes had been between merchants and tribesmen.
They had been between neighboring clans.
The peace was real.
But it was still fragile.
---
"Tell me," Hassan continued, "how do your people measure grain?"
Temür called for a wooden bowl.
Hassan filled it.
Then he emptied the same grain into another bowl brought by a different trader.
The second bowl held noticeably less.
Neither bowl was damaged.
Neither merchant had cheated.
They simply used different standards.
Hassan shrugged.
"Both men believe they're honest."
Temür frowned.
"So neither is wrong."
"No."
The merchant smiled.
"And neither can trade efficiently."
---
The following day, Temür wandered through the market instead of participating.
He borrowed measuring bowls from every merchant willing to lend one.
By afternoon, he had collected fourteen.
Not one matched another.
Some were wider.
Others deeper.
One had a thicker base, reducing its capacity without changing its appearance.
He laid them side by side on a blanket.
The differences were obvious.
Yet no one had noticed before.
Because no one had compared them.
---
That evening, Sükh found him still staring at the bowls.
"You've missed supper."
Temür nodded absently.
"Everyone says honesty is important."
"It is."
"But honesty alone isn't enough."
The old man lowered himself beside him.
"What troubles you?"
Temür picked up one bowl.
"If two honest men disagree..."
"...how do they know who is correct?"
Sükh didn't answer immediately.
Instead, he picked up a handful of sand and let it fall back to the earth.
"Truth exists whether we recognize it or not."
He looked at the bowls.
"The difficult part..."
"...is convincing people they've found it."
---
Before sunrise, Temür walked to the river carrying a length of smooth wood.
He measured it against his own forearm.
Again.
And again.
Then he carved careful markings into its surface.
Simple.
Clear.
Unchanging.
He wasn't certain what he was creating.
Only that it might be useful.
As the first light touched the water, he smiled to himself.
Some problems weren't solved by wiser people.
They were solved by giving everyone the same point from which to begin.
He tucked the carved rod beneath his arm and started back toward the market.
Whether anyone would listen...
He did not yet know.