Zhao believed it was winning.
That was the first mistake.
Their cavalry rode deeper into Wu An's territory like a storm freed from its cage. Towns fell before they could resist. Watchtowers were abandoned. Roads lay open. Small garrisons withdrew without battle.
To Zhao, it looked like fear.
To Wei, it looked like collapse.
To Yan and Western Zhou, watching from behind gold, proclamations, and rented swords, it looked like proof that Heaven had finally rejected the usurper.
For a few days, the entire realm believed Wu An was retreating.
And perhaps he was.
But retreat was not always escape.
Sometimes—
It was invitation.
The first unease came from the cities.
Zhao riders entered a market town just before dusk, expecting grain, hostages, and supplies.
They found empty streets.
Doors open.
Cooking pots cold.
Wells covered.
Granaries swept clean.
Not burned.
Not destroyed.
Simply emptied.
A Zhao commander dismounted in the square and stared at the abandoned stalls.
"Where are the people?"
No one answered.
A scout returned from the northern road.
"Gone, my lord. The villages too."
"Gone where?"
The scout lowered his head.
"South. West. Some into the hills."
The commander frowned.
"They fled?"
Another soldier kicked open a storage shed.
Empty.
Then another.
Empty.
A third.
Empty.
The town had not been abandoned in panic.
It had been harvested.
Men, food, tools, livestock, carts, medicine, even rope.
All gone.
The commander looked toward the darkening sky.
For the first time since the advance began, he felt something colder than victory.
He felt design.
Wei noticed it next.
Their army moved slower than Zhao's, but with greater discipline. They took cities, established order, marked supply depots, and prepared for sustained occupation.
Except there was nothing to sustain them.
The eastern towns they entered had no grain.
The fields had been cut early.
The wells were fouled with ash.
Livestock had vanished.
Even the mills had been stripped of stone.
One Wei officer stood inside an empty granary and ran his hand along the floor.
No dust.
No forgotten sacks.
No scraps.
"They cleaned it," he said quietly.
His superior frowned.
"Who?"
The officer looked toward the west.
"Wu An."
By the fifth day, reports began changing tone.
Not victory reports.
Questions.
Why are the roads empty?
Why are the villages abandoned?
Why do the locals vanish before we arrive?
Why are our foragers returning with nothing?
Why are Zhao's horses already weakening?
Why has Wei's supply line doubled in length?
Why are Yan's mercenaries demanding more silver to march further?
No one had an answer.
Or rather—
No one wanted to say the answer aloud.
Far behind the advancing armies, Wu An stood in a ruined watchtower and looked over the black roads stretching east.
Liao Yun stood beside him.
"The evacuations are complete," he said. "Most of the people were moved before Zhao arrived. Some resisted."
"And?"
"They were moved anyway."
Wu An nodded.
No remorse.
No pride.
Just confirmation.
Liao Yun hesitated.
"Some villages will never recover from this."
Wu An looked toward the east, where enemy banners had crossed deeper than any invader had in years.
"They were already dead if Zhao reached them."
"That is not the same."
"No," Wu An said. "But it is enough."
Liao Yun said nothing.
Below them, Liang troops moved through darkness without torches. Small units. Quiet units. Men carrying knives, short muskets, oil, wire, and bundles of black cloth.
Not an army.
A sickness.
Wu An watched them go.
"They wanted a war of numbers," he said.
"So I gave them a land that cannot sustain numbers."
The night raids began quietly.
At first, the enemy thought it was bandits.
A Zhao horse line cut loose in the dark.
A Wei ammunition cart burned before dawn.
A Yan mercenary captain found dead with his throat opened so cleanly his men only noticed when he failed to wake.
Then it worsened.
Every night, something vanished.
Food.
Horses.
Maps.
Scouts.
Sleep.
Men began hearing movement outside the camp and firing into darkness. Sometimes they killed nothing. Sometimes they killed their own pickets. Sometimes, in the morning, they found Liang arrows stuck into the ground just beyond the firelight.
No message.
No flag.
Only proof.
We were here.
Zhao suffered first.
Their strength was movement.
But movement required horses.
Horses required grain.
And the land gave them none.
By the eighth day, Zhao cavalry began slaughtering weaker mounts for food. By the tenth, patrols moved shorter distances. By the twelfth, riders argued over fodder like peasants over winter millet.
A Zhao commander struck one of his own men for stealing horse feed.
The soldier struck back.
He was executed immediately.
But the damage was done.
Hungry men could still obey.
Hungry horses could not.
Wei tried to hold order longer.
They rationed carefully. They guarded supply carts. They punished theft. They kept formation.
But each step deeper made their strength heavier.
Their wagons stretched for miles. Their rear guards grew thinner. Their scouts found fewer roads intact. Bridges collapsed behind them. Canal locks jammed. Messages arrived late or not at all.
And always—
At night—
Liang came.
Not in grand attacks.
Not in banners.
Knives in tents.
Fire in carts.
Bodies in wells.
One Wei officer wrote in his report:
"The enemy refuses battle.The land refuses supply.The night refuses sleep."
He never sent it.
He was found dead before dawn.
Yan's mercenaries began to complain openly.
They had been promised gold and plunder, not starving roads and invisible enemies. Some threatened to leave. Some tried.
Those who deserted vanished before reaching the rear.
The survivors began demanding triple pay.
Yan's commanders wrote back in panic.
The Merchant-King sent more silver.
But silver could not be eaten.
Western Zhou's agents spread proclamations claiming Wu An was fleeing, that Heaven rejected him, that the true Mandate would return.
But even those papers began to seem strange in the empty towns.
Who were they written for?
The people were gone.
The land had been emptied of witnesses.
Only armies remained.
Armies and hunger.
On the fifteenth night, Zhao and Wei commanders met in an abandoned temple.
The statue of a river god had been removed before they arrived.
Even the gods had been evacuated.
The Zhao commander slammed his fist onto the table.
"We push forward. We take Beiliang by speed."
The Wei commander's face was pale from exhaustion.
"With what supplies?"
"With horses."
"Your horses are dying."
Zhao's commander bared his teeth.
"And your wagons are burning."
A Yan officer stepped between them.
"Fighting each other serves Wu An."
The Zhao commander turned on him.
"Your gold brought us here."
"And your impatience brought us too deep."
Steel half-left its scabbard.
For a moment, the alliance almost ended in that temple.
Then a horn sounded outside.
Not theirs.
A low, distant note.
Then another.
Then screaming.
They rushed out.
The western camp was burning.
Not fully.
Not enough to destroy it.
Only enough to force everyone awake.
Only enough to make them run.
Only enough to make them afraid.
In the flames, shadows moved and vanished.
Liang again.
Always Liang.
Never enough to fight.
Always enough to bleed.
By morning, the Zhao commander understood.
He stood over a map with trembling hands.
Their advance lines looked impressive.
Long arrows deep into Wu An's territory.
But the supply lines behind them were thin, frayed, and broken in a dozen places.
The towns they had taken could not feed them.
The roads behind them were unsafe.
The allies beside them were angry.
The enemy ahead of them had vanished.
He stared at the map until the shapes stopped looking like victory.
They looked like a throat.
And they were inside it.
"We are not advancing," he said quietly.
His officers looked at him.
He swallowed.
"We are being led."
Far away, Wu An received the report before sunrise.
Zhao slowing.
Wei rationing.
Yan mercenaries unrestful.
Western Zhou agents ineffective.
Enemy alliance beginning to argue.
Liao Yun read the same report and let out a slow breath.
"It's working."
Wu An looked tired.
Not triumphant.
Tired.
"It has started working," he corrected.
"There is a difference."
Liao Yun looked toward the east.
"How long until they break?"
Wu An was silent for a while.
Then he said, "Not long enough."
Liao Yun frowned.
"What do you mean?"
Wu An turned toward him.
"They still have numbers. They still have commanders. They can still retreat if they move now."
"And if they do?"
Wu An looked out over the dark fields.
"Then all this buys time."
A pause.
"But I don't want time."
His voice lowered.
"I want the army."
Liao Yun understood then.
The starvation trap was not meant to stop the invasion.
It was meant to make retreat impossible before they realized retreat was necessary.
That evening, Wu An gave the next order.
Not loudly.
Not in council.
Only to a small group of commanders.
"Burn the roads behind them."
No one answered.
He continued.
"Destroy the remaining bridges. Collapse the eastern canal crossings. Poison the abandoned wells. Drive off any livestock not already moved."
One commander hesitated.
"My lord… if we do this, those lands—"
"Will suffer," Wu An finished.
"Yes."
"Do it."
The commander lowered his head.
No one argued.
They had learned not to.
The next three nights were worse.
To Zhao and Wei, it felt as if the land itself had turned hostile.
The road behind them vanished under fire.
The bridges they intended to use for retreat collapsed.
The few remaining wells were unusable.
Scouts sent back did not return.
Forward, there was nothing.
Behind, there was fire.
Around them, allies.
Hungry, frightened allies.
The alliance stopped advancing.
That was when fear truly began.
Because armies understand movement.
Forward means attack.
Backward means retreat.
Stopping means something has gone wrong.
In the Wei camp, soldiers began whispering that Wu An had abandoned the land to demons. That the villages had been emptied as sacrifice. That the night raiders were not men but ghosts of Beiliang.
In the Zhao camp, horsemen carved charms into their saddles.
Yan mercenaries began sleeping in armor.
Western Zhou priests prayed louder.
None of it helped.
Night still came.
And with night—
Liang.
On the twenty-first morning, the Zhao commander climbed a low hill and looked across the empty plain.
No cities smoking.
No armies waiting.
No banners.
Only mist.
And somewhere in that mist, Wu An.
He finally understood the horror of it.
Wu An did not need to defeat them today.
He could wait.
He could let hunger sharpen them against each other.
He could let fear rot discipline.
He could let men begin to wonder whether surrender to a monster was better than starving beside allies.
The commander turned to his officers.
"We retreat."
No one objected.
Not one.
Then a scout rode up, pale as bone.
"My lord…"
The commander looked at him.
"The southern road is gone."
A pause.
"The bridge?"
"Burned."
"The western road?"
"Blocked."
"The supply route?"
The scout lowered his head.
"No word."
The commander said nothing.
Around him, the wind moved across empty fields.
Then, from far away, horns sounded.
Not enemy horns.
Liang horns.
Many of them.
Ahead.
Behind.
On both flanks.
The commander closed his eyes.
Too late.
From a distant ridge, Wu An watched the enemy camps begin to stir in panic.
Liao Yun stood beside him.
"They know."
Wu An nodded.
"Yes."
"Now?"
Wu An's face was pale from sleeplessness, but his eyes were clear.
"No."
Liao Yun looked at him.
"They're trapped."
"Yes."
"Then why wait?"
Wu An looked down at the armies below: Zhao horsemen, Wei infantry, Yan mercenaries, Western Zhou loyalists, all trapped in a dead land they had mistaken for conquest.
"Because hunger has not finished speaking."
Liao Yun said nothing.
Below them, men began shouting.
Orders collided.
Horses screamed.
Some units tried to move.
Others refused.
The alliance was still alive.
But no longer whole.
Wu An turned away from the ridge.
"Tonight," he said.
Liao Yun followed him.
"What happens tonight?"
Wu An did not look back.
"The night raids stop."
A pause.
"And the killing begins."