The Unsealed Writ of Immunity

The immunity document bore a signature, but no seal to prove its authority.

Ito Masaru tilted the paper toward the lamp. Water stains had bled through the thin fibers. Beside it lay thirty silver nyang in cash and an old transport map folded four times. The map showed not a single new route.

"If this went as planned, there should be a new route."

The neutral shop's owner tucked both hands into his sleeves.

"This is all the reply from Yun Haejun. Only confirmed old routes provided. Whoever corrects a place name first writes it down."

Ito read the reply and checked the time. The third day, just past noon. The answer had taken roughly two meal times to arrive. It wasn't a telegram but a paper carried by hand. That meant Yun had noticed the line was being intercepted and had even changed the delivery route.

He didn't discard the map.

Being a trap didn't mean the map was useless. If it had been a false map, the villagers marked on it would have suffered under army horses and search parties. Haejun had offered only real roads already retired from use, limiting that harm while testing which place names Ito already knew.

"There are two options," Ito said. "Return the map and end the deal, or accept that it's a trap and look only for new traces on the old paper."

"Which will you choose."

"The second. An ally as honest as a timetable is rare, but a folded paper is sometimes more honest."

He took off his gloves and smoothed out the map's corners. It had been folded twice to the north, once to the west. The ink along the fold lines was more worn than elsewhere, a trace of someone folding it the same way every time they tucked it inside their coat. That might mean the northwest was the old route checked most often in practice. He couldn't be certain.

Ito handed a blank sheet to Sakai, the interpreter.

"Separate what you measure from what you interpret. Fold direction, north-northwest. Three worn ink spots. Two erased place names. Everything below that is inference."

Sakai bowed his head.

"Should I restore the erased place names?"

"Only the characters you're sure of. Leave what you don't know blank."

The first place name was Seogang Ferry. It was a road both sides already knew. The second had its first character smeared by water, leaving only the character "jin" at the end. When Sakai went to write "Yanghwajin," Ito pressed down on the brush.

"If we fill it in first, we're handing Yun Haejun the answer."

The shop owner asked.

"He's not here. How would he know?"

"This map has a mark that reveals which place name we corrected."

Ito pointed to a small ink dot at the bottom of the map. It looked like a plain smudge, but beside the dot was a thin scratch scored into the paper. If a place name was written over it, the ink would pool inside that scratch. That was why the condition required the copy to be returned.

"Then why not just not send it back."

"Then we hand over the fact that we noticed the trap. Either way, it becomes information."

Ito divided the thirty nyang of silver into three bundles. Ten nyang for the map, ten as an immunity deposit for the courier, ten held back for now.

"Who issued the immunity document."

The shop owner looked away.

"It's issued in the name of the Japanese legation's logistics officer."

"The authority to punish rests with the military court. All this paper can excuse is the charge of obstructing our transport. Any claim that it also erases arrest by Joseon officials or Bak Sangho's charge of insubordination is a lie."

He wrote the scope of authority in the document's margin and signed his own name. If he let an unreliable promise stand just to close an information deal, the value of every negotiation after this one would fall.

"Read it to the courier. If he wants, he can refuse the deal and go back. In that case, only the ten nyang deposit will be paid."

"Even if you don't get the map?"

"I already have it."

Ito looked again at the old map's fold direction. There were no coordinates for a new route, but the range Haejun meant to protect had been revealed. He had refused to push the villagers into a completely false road, and he had forced his opponent to write the name first. This was an enemy who, in hiding a single road, counted even the houses that would be searched for it.

That judgment was both respect and the collection of a weakness.

Ito didn't have the map copied outright. He had Sakai transcribe only the place names and waterways, and Bae Mungi, the shop's Joseon copyist, transcribe only the fold lines and the erased ink. Neither man saw the other's paper.

"We'll swap them after one meal's time. Whoever sees it first must not fill in the other's blanks."

Bae Mungi touched the edge of the map, then pulled his hand back.

"The paper got wet and dried. It might not be Seogang water, it could be rain."

Sakai read the first erased character as "ma." Bae said the pressed mark under the ink was closer to "po." Combined, "Mapo" would have made plausible sense, but the moment they wrote it, Ito would be the one supplying the place name to Haejun's test.

"Record both. Don't combine them."

Nakamura spoke, sounding frustrated.

"If we send scouts to both Mapo and Yanghwajin, we'll confirm it."

"How many horses do we have left."

"Six that can move immediately."

"Split between two places, that's three escorts each. If villagers block the road or one site turns out to be a decoy, there won't even be a messenger to come back."

Ito didn't issue a scouting order. Instead he gave one nyang each to two of the neutral shop's delivery boys and had them simply ask around for open market prices. If there was a place where feed and straw prices had suddenly risen, that might mean army horses had passed through, but it could just as easily be merchant hoarding or a flood.

Two nyang gone, and the results didn't come back until near sundown. Meanwhile the reply about the map was also delayed. While time was spent confirming a single piece of information, the other side could shift to a different route.

After one meal's time, when the two copyists' papers were swapped, Bae Mungi raised doubt about the character "jin" that Sakai had read as well.

"The last stroke smeared by water is joined to it. It could be 'po.'"

Sakai couldn't hide his displeasure.

"Someone who doesn't even know hanja..."

"The person who handles the paper knows a pressed stroke." Ito cut him off. "Record who read it and in what tone, too. Even the correct character gets treated as the answer first based on the messenger's rank."

The conclusion remained unconfirmed. Ito didn't fill in the blank with ink. Even a result that couldn't be worked out was information that had stopped the next scouting run.

Nakamura, Ito's aide, came in from outside.

"The scouting results from the Seogang side. The old route is empty. Traces of horse feed stop two days back."

"Within the expected range. Losses?"

"One horse injured its hoof, and two guides say they want to turn back. The villagers blocked the well."

Ito added a line to the loss ledger. One horse, two guides, failure to secure water. That was the real cost of confirming a single old route.

"Don't hold the guides. Pay the wages we promised and their travel fare home."

Nakamura pushed back.

"That means half a day lost finding new guides."

"If we hold them, the next guide will feed us false roads. The loss rate would be greater."

"What about the well."

"If we send soldiers, the whole village will hide the route. Buy the water with cash, and if they refuse, move to the next well."

Ito wasn't avoiding civilian harm out of goodwill. A single bucket of water taken by force would taint every place name and timetable that followed. But the moment it was written only in the language of calculation, the name of the person who would be struck for protecting the water disappeared.

Outside the shop, a woman raised her voice. She was the Seogang guide's wife. She said the horse's treatment cost had been deducted from the promised wages. When Nakamura went to call a soldier, Ito raised a hand.

"Bring the ledger."

Three of the ten nyang in wages had been deducted as a "share of operational losses." It was a deduction Ito hadn't approved. His aide called it standard field practice.

"Since he guided us down the road that hurt the horse..."

"We bought the risk of that road. The guide didn't push the horse."

Ito returned the three nyang and wrote the reason for the correction in the ledger. The woman counted the money and didn't thank him.

"I won't go again."

"That choice is in the contract."

After she left, Nakamura lowered his voice.

"This could make our control on the ground look weak."

"If things go as they should, the side that kept its word buys the next piece of information. A guide taken by force sells us the lie we want to hear."

Along with that, Ito wrote down his own loss. Three nyang refunded, half a day's delay, the loss of the Seogang guide network. He was still clumsy at keeping people in the ledger so that calculations against a capable enemy wouldn't erase the cost to civilians. He asked for the guide's name.

"Song Jaegil."

For the first time, Sakai wrote a name on the loss ledger.

Haejun's courier entered the negotiation room. He was a man of about twenty, his left sleeve damp. Ito had the scope of the immunity read to him directly. The man listened for a while, then asked.

"So if I get caught by Joseon officials, this paper is useless?"

"That's right."

"Then I don't get the full thirty nyang either?"

"Ten nyang for the map, ten as a deposit against obstruction on our side. The rest comes after the place names are confirmed."

The man didn't look at the map. He looked toward the door.

"I won't do it."

The shop owner was flustered, but Ito pushed the ten nyang deposit forward anyway.

"Refusal is included in the terms."

The man didn't take the money.

"If I take it, I become a man who got scared trying to sell a map. I'll just go back."

Ito hadn't been able to calculate that choice. Refusing both cash and immunity to avoid the rumor of being "a man who fled while trying to sell a map" had no place in his table. He didn't hold the man back. Instead he recorded the time of his departure and the fact that he left empty handed.

"Who returns the map?" Sakai asked.

Ito folded the map four times again. Not in the same direction as before. Once to the north, twice to the east. He had no intention of deliberately sending Haejun a different trace. Mimicking the original folds would become a false signal, and civilian roads might be searched following that signal.

"Send it with a copy of the neutral shop's ledger. Don't correct the place names. Write that all we confirmed was the folds and the erased traces."

"That amounts to revealing we noticed the trap."

"In exchange, we also know what information Yun Haejun gained. It's a trade where each side got one thing."

He took back the final ten nyang. He hadn't given the place name correction Haejun expected, but he sent the map itself back. He accepted, as a cost, that the other side would be able to measure the reply time and delivery route.

As the sun sank low, an auditor on Min Chaeok's side arrived at the shop. He spread out not Ito's map but a copy of the grain approval ledger. Beside the same six hundred sacks entry were three slots for seals.

"There's something to confirm."

The auditor tapped one empty slot with a fingernail.

"One of the three seals is missing from the approval ledger. What's more, part of the same grain has been pledged as collateral for two separate debts."

Ito checked the time. Early yusi. A blank far more costly than any old route now lay before him.