Cai Hongwen received Liu Changyun in the white room of his estate, in the heart of Crimson Bastion.
The room had been built to a single purpose. High windows that let in light, and a protective array to keep prying eyes out. A long mirror on the far wall, so that a man speaking to him also faced himself, and Cai Hongwen could watch both at once.
Nothing was on the walls except a faint pulse of formation light designed to maintain privacy. There was nothing in the room a guest could read except Cai Hongwen's face, and that face had been trained across decades of careful scheming.
Liu Changyun stood rather than sat. He had not been offered a seat, and he knew better than to take it.
Cai Hongwen valued him precisely because a sharper man would grow ambitions, and a duller one would make errors. Liu Changyun held the rare middle virtue of being exactly as capable as his task required, and not a grain more.
"The grievances are filed," Liu Changyun said. "All three, sealed and entered into the Bastion's record by the proper clerks. The Wang Clan is named in each. Demonic association left unexplained. Protections sheltering them from honest inquiry. The Bastion's own keep dying in Redstone, the spear genius Yan Qing the latest of them, lost in the demonic fighting."
"The clerks accepted them without trouble," Cai Hongwen said. It was not a question.
"It is rare for the clerks to make trouble for the Cai, my lord. They accept anything that arrives correctly sealed. That is the whole of what a clerk is."
Cai Hongwen allowed himself a thin satisfaction, and allowed Liu Changyun to see exactly as much of it as was useful.
The grievances were not the weapon. The grievances were the key that turned the lock, and behind the lock waited the only weapon that had ever truly mattered inside the Bastion: an investigation.
An investigation was a beautiful instrument. It did not need to prove a thing. It needed only to open, and then to stay open.
A clan answered one charge, and the Bastion found a second. The clan answered the second, and the Bastion thought of a question it had not asked before.
The Wang Clan would wear itself out answering, and proving, and simply enduring while the Bastion was patient, and the Bastion could be patient for precisely as long as he kept feeding it reasons.
A clan that could not outlast the Bastion's patience did not survive.
He felt nothing for the Wang Clan. Hatred was a luxury, and luxuries clouded the mind. The Wang Clan was simply in the way.
The clan held a claim on the city he had already decided was his. His was patient work: pieces lifted from the board one at a time, each too slight to draw notice, until the whole had changed and no one could name the moment it had.
The Wang Clan was one such piece. It would come off the board, one way or another.
One fewer clan in Redstone, and the city's accounts would answer quietly to him. With the city in hand, the Blackwood Forest beyond it lay open. And beyond the forest, the Blackwood Domain itself. The thought drew a thin smile from him.
The seat. Cai Hongwen turned, without appearing to turn, until the long mirror held his reflection. The face the glass gave back had already put the smile away.
By his father's merits, the Blackwood seat should long since have been a Cai seat. The man had died for the kingdom, but Cai Hongwen knew better than to die for someone else.
He had once heard how the king named him. A schemer's eyes set under the face of a hero's son. The Cai had been a clan of heroes in his father's day. Under Cai Hongwen, the king saw something else entirely, a clan that no longer gave the throne its whole heart, and so could not be trusted to hold a domain in its name.
Cai Hongwen had never resented this. The king had not been wrong. He only resented having been seen through.
So the seat had gone to the Tie Clan. Of all who stood in his way, Cai Hongwen reckoned two men above the rest: Tie Wushan, who held the seat as Domain Lord, and his younger brother Tie Yuan, the more difficult man by far.
The war pressed the Tie Clan from the outside; Cai Hongwen pressured them from within. Squeezed from both sides, the clan would fail in time, and he did not doubt it, so long as things kept to the course he had set.
There were limits, of course. There were always limits, and the man who forgot them did not live long. Above the Domain Lord stood the king. Above the king, higher still, stood the Blazing Sun throne and Emperor Yan Tianhuo.
Cai Hongwen had no intention of being seen to reach. Everything he did, he did at a scale the empire would never trouble itself to watch: a frontier city, a fading clan, a domain seat at the edge of the map.
"Tie Yuan," Cai Hongwen said. "Where is he."
"At the Bastion still. He keeps to his tower and his records." Liu Changyun's voice did not change. "A quiet man. He has been asking the lower archive for old registers."
Tie Wushan had the cultivation, and the warrior's nature to match it; Tie Yuan had the patience and the political mind his brother lacked. It was the younger brother he was watchful of now, the careful one. A man worth paying attention to.
Tie Yuan had been a thorn in more of Cai Hongwen's work than he cared to count, never the hand that struck, but somewhere near every time a plan of his came apart. A man like that did not ask the lower archive for old registers idly.
"Find what he asked them for," Cai Hongwen said. "Every scroll, by name."
He expected little of it. Tie Yuan was an old fox, as careful as Cai Hongwen had made himself, and one fox seldom caught another at its work.
But the surest hunter was the one no one knew was hunting, and Cai Hongwen had made a study of being exactly that.
"And the investigation," he said. "It is being assembled?"
"It seems they have settled on Qin Hualing to lead it. The Bastion trusts her without reserve. Honest, incorruptible by every account I gathered, which is why the Tie are content to let her run the matter as she sees fit." Liu Changyun paused, and looked for some change in his lord's face, and found none, as he had known he would.
"I am not certain Wei Zhennan can manage her alone, my lord. Should we set a second man beside him?"
"One man is enough," Cai Hongwen said. "An honest investigator is the easiest of them all to steer, for the simple reason that she trusts what she finds without question. One needs only to choose what she finds." He turned from the mirror at last.
"Wei Zhennan. The delegation will want a commander, a man used to the ways of the demonic path. Wei Zhennan will be that man. He has the rank for the place, the coldness for the work, and a face that honest people decide to trust inside the first hour of knowing it. He will sit within Qin Hualing's delegation, report its inner workings to me, and turn its attention by a hair's breadth wherever a hair's breadth is needed. Qin Hualing will never know him for what he is. Nor will the rest of her people."
"And should Wei Zhennan be found out," Liu Changyun said.
"Then Wei Zhennan acted alone, out of a private grief for those the Bastion lost in Redstone, and Lord Cai is sorrowed to learn one of his own retainers had been so twisted by loss."
"Send Wei Zhennan his instructions. He travels with the delegation, not ahead of it. Huang Ying stays in Redstone, visible and ordinary, a clerk's clerk and nothing more. And you." He let the name wait a moment.
"You will go to Redstone ahead of the delegation."
Liu Changyun inclined his head, and did not yet move, because there was one matter still unspoken, and he had long ago learned to read his lord's pauses.
"That is all," he said.
When Liu Changyun had gone, Cai Hongwen crossed to the desk and opened the drawer he had kept shut while another man stood in the room.
The scroll inside was a deep, drowned blue, and the cold came off it in a slow steady breath, frost feathering the grain of the wood beneath it.
His guest had left it the night they last spoke, the one whose presence had turned the tea to ice in its cup. What it set down between them bound Cai Hongwen to a power the kingdom was bleeding men to keep beyond its borders, and bound that power to him.
He knew exactly what such a thing was worth, and what it would cost him. It was cold, and it was his, and no one in the kingdom could ever be allowed to learn he held it.
The Wang matter, should it fail, would cost him a season and a setback. This, should it ever be found, would cost him his life.
He held the scroll a moment, feeling the cold settle into his palm, then laid it back in the dark and slid the drawer shut.
Then he stood a while in the white room, between the long mirror and the high windows, and looked at the board the way he most liked to look at it: whole, and from above, every piece upon it his own to lift and set down.
Only the Prince was a piece he had not set.
Huo Zhanlong, riding the frontier under a recruiter's banner with a soldier's eyes above it, and the king behind him grown restless of late beneath the empire's long patient leash, the whole Huo line beginning to lean north against a throne it had served for centuries.
A prince in Redstone was weather Cai Hongwen had not planned for. But weather passed.
It did not occur to Cai Hongwen, who had spent decades as the hand other men never thought to look for, that a board seen whole from above is, even so, a board, and that a man certain he is the last player left standing over it is only the piece that has forgotten to look up.