You cannot hunt what you cannot see, and so, in the third week, Xiao Yan began — carefully, from a sickbed, through a shadow with a basin — to show me the court.
He did it the only way a dying man could: by receiving visitors. A prince too weak to leave his bed but too important to ignore draws a slow procession of the powerful, come to measure the length of his remaining road, and I stood against the wall through all of it with my head down and my eyes up, a piece of furniture that happened to be the sharpest diagnostician in the building, and I read them the way I read bodies. Not their words. Their hands. Their pauses. The things their faces did when they thought no one who mattered was watching.
The Empress Dowager came first, and she frightened me more than anyone.
She was old and upright and beautiful the way a blade is beautiful, and she loved the dynasty with a whole and terrible heart, and she had, as Xiao Yan had said, already buried him. She did not weep. She sat by her grandson's bed and spoke to him of duty and continuity and the importance of a smooth succession, and she used the word smooth the way a physician uses the word comfortable about a patient past saving, and I understood that this woman had decided, somewhere in a cold calculating chamber of herself, that a lingering half-dead heir was worse for the empire than a clean dead one and a living spare. She did not need to poison him. She had simply, in her heart, signed the order and was waiting for it to be carried out by fate or by someone bolder than herself. When she left, she paused at the door and looked back at him with something that was almost grief and entirely resolve, and I thought: there. There is a person who wants him dead for reasons she believes are noble, and noble reasons make the most patient killers.
"You suspect her," Xiao Yan said, when she was gone. Not a question.
"She's the first person I've seen who wants you dead and doesn't feel bad about it," I said. "That's usually where I'd start."
"So would I. I have started there a hundred times." He was watching the door where his grandmother had been. "And every time I run it to the end, it breaks. She wants me dead, yes — for the dynasty, for stability, for the smooth road. But she would not stoop to an arrow in the dark and a drowned surgeon and a whispered curse. She thinks such things beneath the throne. If my grandmother wanted me dead, she would poison my tea in open court and dare my father to object, and call it mercy, and mean it." A grim flicker. "The hand we're hunting is a coward's hand. It hides. My grandmother has never hidden from anything in her life. Keep her on the board. But she is not the shape we're looking for."
The favorite came next, two days later, and she was everything the Dowager was not.
Noble Consort Wei arrived with a retinue and a basket of tonics and a face like a painting of kindness. She was, Xiao Yan had told me, the most beloved woman in the inner palace — mother of the Third Prince, famous for her charities, her poetry, her softness; the Emperor's favorite for a decade. She swept in, pressed her sleeve to her eyes at the sight of him, called his slow recovery a blessing she prayed for nightly, and wept, and it was a genuinely lovely performance. I watched her hands. Her hands were gentle and sure and entirely unsurprised, and I noted that, the way I note a lab value that doesn't fit the story, and then I set it aside, because a woman that beloved and that soft is exactly the sort of person a suspicious mind reaches for too easily, and I had learned long ago that the obvious suspect is a trap the clever ones set for you.
"She's very good," I said afterward.
"She is the kindest woman in the palace," Xiao Yan said, and there was something complicated and old under it. "Ask anyone. She built the foundling houses in the western wards. She pays the physicians who treat the poor. When my mother died she wept longer than my father did." He said it flatly, giving me the case for her innocence as honestly as he'd give me the case against anyone. "It is very hard to hate her, Cora. That is either exactly what she is, or exactly what she has built. I have never been able to tell which, and I have known her since I was eleven, and I no longer trust my own judgment about her, because a boy whose mother she out-wept does not see clearly." A pause. "So. One more reason not to pick. Test her like the rest."
Her son came with her, and the Third Prince Xiao Che needed no testing to dislike.
He was a handsome, restless man of thirty-odd with all his mother's beauty and none of her control, and he stood at his brother's bedside making sounds of sympathy while his eyes did sums, and when he thought no one who mattered was looking he let a small satisfied smile touch his mouth, the smile of a man measuring a room he expects to inherit. He wanted the throne. He wanted it the way a spoiled man wants a thing he believes he is owed, openly, badly, and he was exactly the sort of person a court points to first — motive worn on the outside, patience nowhere in evidence.
"Him," I said, "everyone would suspect."
"Which is either why it's him, or why it isn't," Xiao Yan said. "Che has wanted my place since we were boys. But Che could not keep a secret through a single cup of wine, let alone fifteen years. The hand that took my mother was patient past anything my brother has ever managed. If Che is in this, he is a knife, not the arm." He considered. "Though a knife can still open a throat. Keep him close on the board."
And the Grand Physician Que came, at the end, and he was the one who interested me most, because he was the one with his hands actually on the prince.
He was a soft, careful, high-ranking man who would not look at me — a detail I filed, because in my experience the person in the room who will not meet the eyes of the servant is the person most afraid of what a servant might have seen. He examined Xiao Yan's recovery with an expression I knew intimately: the sick, careful calm of a man watching his own explanation come apart, trying to decide how much of what he saw could still be blamed on fate. He spoke of the curse's mysterious ebb, of the delicacy of the imperial constitution, of the danger of disturbing a body heaven had marked. He had burned incense over a treatable wound for two months. Whether from cowardice or corruption or coin, this man had been part of the machine that was killing my patient, and he knew that I knew, and he left as fast as courtesy allowed.
"Que," I said. "Whatever else is true, that man has been helping it along. No physician alive mistakes a walled abscess for a curse for two months by accident. He was told what to see, or paid to see it, or too frightened to see anything else."
"Yes," Xiao Yan said, and for the first time there was real heat in it. "Que is a hand. Que I am certain of. But Que is soft — soft men don't plan fifteen-year murders, they only carry water for the ones who do. If we take Que now, we take the one visible thread and warn the whole loom." His eyes found mine. "So we don't take him. We watch what he touches, and who he reports to, and we let him keep thinking his incense is still fooling someone. The physician is our way in, Cora. But he is the smallest door in a very large house, and if we open it too soon, they'll simply build a bigger one."
The visitors stopped coming, in time, as the "dying" prince settled into the long ambiguous middle where a court loses interest in a deathbed that won't perform. And I stood in the emptied room with a list in my head that had gotten longer, not shorter — a grandmother who wanted him dead for the good of all, a favorite too kind to read, a brother too obvious to dismiss, a physician too soft to be the brain — and I understood the shape of what we were in. Not a murder to solve. A patient, invisible machine, fifteen years in the building, designed by someone who had made very sure that everyone who ever went looking would find a dozen plausible faces and never the true one.
"You look like a physician with a patient she can't diagnose," Xiao Yan observed.
"That's exactly what I look like," I said. "Because that's exactly what this is. Somewhere in that parade is the hand, or a piece of it, and every one of them is plausible, and that's not an accident. Someone built it so the obvious answers would eat all your time." I turned the little iron fragment over in its dish, the one solid fact in a house of smoke. "So we do it the only way that works. We stop asking who wants you dead — everyone does — and we start asking who could have done it. Who could reach a field surgeon on the northern frontier. Who could drown a man on a calm river. Who could turn a court physician and keep him turned. Reach, not motive. The body doesn't lie, and neither does a supply line." I looked up at him. "Tell me about the arrow. Everything. Start with the man who cut the shaft."
Xiao Yan's eyes sharpened, and the strategist came fully awake in him, and somewhere in the cold abandoned heart of the Eastern Palace, the hunt began in earnest.
