By the second night Nami's fever was at forty and a half and Vivi had stopped saying it would break.
Zoro came below at two in the morning and put everyone else out of the cabin.
"What are you doing," Sanji said, from the doorway.
"Something. Shut the door."
He sat on the floor beside the bunk and took her wrist. Her pulse was quick and thin and going in the wrong places. He'd never done this to another person. In the old life it was an intermediate skill and he'd read the theory and never had cause, because in the old life a sick woman was somebody's problem for a pill.
He put a hand flat between her shoulder blades and found the rhythm of her breathing, and then he pushed his own into it.
It was like trying to steer a boat by leaning.
He got hold of the blood eventually. Not much of it, and not well, and every circuit he moved cost him more than the same work in his own body cost by a factor he didn't want to think about. He kept it up for an hour. The heat came down maybe half a degree. Her breathing dropped into something less frantic and stayed there.
When he came out he had to hold the door frame.
Vivi was staring at him. "What did you —"
"She's got until tomorrow night now instead of tomorrow morning." He went past her. "Find land."
They found Wapol first.
His ship came out of the fog and he ate a section of the Merry's rail before anyone was properly awake, announced that he was a king, and got launched over the horizon by Luffy without ceremony. He'd said the name of an island before he went. That turned out to be the useful part.
Drum came up out of the sea an hour later, white to the waterline, with a mountain in the middle of it that had a castle sitting on the summit like something dropped there.
The villagers met them on the shore with rifles.
Then Vivi said the word doctor, and a big man with a scarred face put his hand on the nearest barrel and pushed it down, and everything changed.
Dalton told them the rest inside, by a stove.
There had been a hundred and thirty doctors on Drum. Wapol had made them all court physicians or made them nothing, and then he'd run when the Blackbeard pirates came, and now there was one doctor left on the island.
"Where."
Dalton looked at the ceiling.
The mountain was five thousand feet of sheer rock with snow on it. The last man who'd tried to climb it had come back down in pieces.
Zoro went out and looked at the face for ten minutes.
He could climb it. Not easily. Handholds where he could see them, and where he couldn't he'd cut them, and it would take him most of a day and he'd probably get there.
He could not climb it carrying a woman with a forty-degree fever.
Luffy could. Luffy's arms went where he told them and he didn't need holds at all. Sanji went too, to carry Nami on his back while Luffy did the climbing, and the three of them went up out of the snow and were gone in twenty minutes.
Zoro stayed at the bottom.
"You could have gone," Usopp said.
"Slower."
"That's not — you didn't even argue."
Zoro didn't answer that. He was watching the treeline, where something had been moving in and out of cover for about a quarter of an hour, and had now stopped moving, which was worse.
The Lapahns came out of the snow forty seconds later. White rabbits the size of bulls, a dozen of them, and they'd been in this fight before because they went for the lower slope above the village rather than the village itself.
Zoro had been standing in snow for an hour without a coat, and his hands were warm.
He put his sword through the first one before it landed. The rest of it took a while. Dalton fought well beside him and the villagers fought badly and nobody died, and when it was finished there was an avalanche coming down the lower face, and Wapol's men were coming into the village from the other direction, and Zoro did not get to sit down for the rest of the afternoon.
He got up the mountain the next morning, on foot, in daylight, with a rope Dalton found him and about nine hundred cut handholds.
It took him five hours. He was not particularly tired at the top.
The castle was warm and smelled of medicine, and there was a woman in it who was a hundred and thirty-nine years old and dressed like she was twenty.
Nami was alive. Kureha had cut the tick out of her, drained the site, and put something into her arm that had brought the fever down eight degrees in a night. She was sitting up and complaining about the cost, which Vivi said was the best sign anyone could have asked for.
There was also a reindeer with a blue nose who walked upright, wore a hat, and hid behind furniture.
Zoro sat down on a bench near the stove and stayed out of the way while all of this was explained, and had almost got to sleep when a hand took his chin and turned his head.
"Open."
"What?"
"Open your mouth, moss. I want to see your gums."
He looked at her.
"I'm a hundred and thirty-nine years old and I've been staring at that scar on your chest since you came through the door and I would like to know why I'm staring at it. Open your mouth or get out of my castle."
He opened his mouth.
She kept him for two hours.
She listened to his heart and made him hold his breath and stop holding it. She took blood. She put a cold plate against his back and had him breathe while she moved it around, and she pressed the scar the way Crocus had, harder, and looked at his face the whole time. She weighed him and looked at the number and weighed him again.
Then she put him behind a machine in the next room and took pictures of the inside of his arm.
She looked at the pictures for a long time without saying anything, which was the first time she'd been quiet since he arrived.
"Sit down."
"I'm —"
"Sit down, moss."
He sat.
Kureha held the picture up against the lamp.
"That's your humerus. Upper arm bone. Bone isn't dead, it gets torn down and rebuilt constantly, all your life, and that means it keeps a record. A famine, a broken leg, a bad year — it shows up in the density and it stays there. Reading bone is most of what I do when somebody won't tell me the truth."
She tapped the picture with a fingernail.
"There's a line."
Zoro looked at it. He could see it, once she'd pointed. A boundary running through the bone, a change of shade, with older bone on one side of it and something denser on the other.
"Everything below that line is a healthy young man who's been training hard since he was a boy. Everything above it isn't." She dropped the picture on the table. "You laid down more mineral in the last six weeks than most men lay down in fifteen years. It's still going. Whatever you started six weeks ago, you're still doing it, and it's building bone the way an ox builds bone, and I don't have a name for the process."
Six weeks. She'd put a date on it, off a photograph of his arm.
He kept his face still and said nothing.
"There's more." She counted it off on her fingers. "Your capillary density is roughly double what it should be. That's the small vessels, the ones that feed tissue. More of them means more blood reaching everything all the time, which is why you're sitting there in a stone castle in the snow with no coat on and warm hands, and why that cut healed the way it did.
"Which is the second thing. That cut didn't scar. When a wound that deep closes, the body patches it with scar tissue, which is cheap and fast and isn't the same stuff as what was there before. Yours isn't scar. It's muscle, and skin, and it's the correct tissue in the correct arrangement, and it's denser than the tissue either side of it. Your body didn't patch that hole. It rebuilt it, and it took the opportunity to build it better."
She drank from the bottle at her elbow.
"Your resting pulse is thirty-one. Your core temperature is a degree and a half high and has been for two hours. Your marrow is producing red cells at a rate I'd expect from a man who's been bleeding steadily for a month. And you ate two of my meals and you're hungry."
"Yes."
"Of course you are. You're burning everything you put in you and building with it." She sat down opposite him and put her chin on her hand. "So. Poison, drug, disease, Devil Fruit, or something you're doing on purpose."
"Something I'm doing."
"On purpose."
"Yes."
"Show me."
"No."
Kureha laughed at that, delighted, and drank again.
"Fine. Keep it. I've been alive a long time and people have kept things from me before and mostly they were disappointing." She pointed the bottle at him. "But I'll tell you what I think, because I want to see your face when I do.
"I think that's a practice. Not a condition. Conditions don't run in one direction that neatly for six weeks. Practices do. Somebody worked that out, somewhere, and wrote it down, and taught it to somebody, and eventually it got to you." She narrowed her eyes. "Which means it isn't yours. Which means somebody else could learn it."
Zoro didn't move.
He had been sitting with that for about a minute and a half, since the word practice, and it had gone straight through him.
It hadn't occurred to him. Not once, in six weeks. He'd carried the art out of a dead world and used it to drag a corpse back into working order and put black on a sword, and at no point had he thought about the fact that it was a method, and methods are the sort of thing you can hand to another person.
Usopp had no way to make himself harder to kill. Nami had nearly died of a tick bite. Sanji had gone into the water at Arlong Park four times on one lungful of air, and if he'd had a body like this one he'd have gone in six.
And Luffy — Luffy, who was somewhere downstairs eating everything in the castle, who had walked up a five-thousand-foot cliff face with two people on his back, who had a body that already did things nothing else in this world did.
Put the first level of tempering into that.
"There it is," Kureha said, watching him. "That's the face."
"No."
"I didn't ask you anything."
"You were going to."
She grinned at him with all her teeth.
He sat there and worked through it properly, and the wall came up where he'd known it would.
To teach it he would have to explain it. Not the movements — the movements he could give anyone in an afternoon. The why. Why the breath goes there and not there. What it's supposed to feel like when it's working, and what it means when it doesn't. What to do when the body fights back on the fourth night, which it would, because it had fought him and he'd had eight hundred years of knowing how to answer that.
And when Sanji asked where he'd learned it — and Sanji would ask, immediately, and would keep asking — there was no answer he could give that didn't end with the truth.
Where'd you get this, moss?
There was nothing after that. There was a dojo in Shimotsuki that had never taught this, and a dead girl who'd never heard of it, and a boy who'd swung a sword every day for eleven years and never once been told there was an inside.
He couldn't hand it to them. Not without handing them the other thing.
"Not yet," he said.
Kureha raised her eyebrows.
"I said no," Zoro said, and got up.
He learned the reindeer's story later, from the doorway, because he wasn't going to walk into the middle of it.
His name was Chopper. He'd eaten a Devil Fruit that made him a person, which had left him too strange for the herd and too strange for the town, and a man called Hiriluk had taken him in. A quack. A terrible doctor, apparently, who had cured almost nobody and had believed with total conviction that any illness could be beaten if the patient wanted it enough.
Chopper had gone up the mountain to find a mushroom that would save him. He'd brought back a poisonous one, because he couldn't read, and Hiriluk had known exactly what it was and drunk it in front of him and told him it was the finest thing anyone had ever done for him. Then he'd blown himself up before Wapol's men could take him, laughing, so that nobody would remember him dying badly.
He'd spent his life trying to make a cherry tree bloom on an island where nothing grew.
Zoro stood in the doorway with his arms folded and listened to a reindeer cry about a man who'd died six years ago, and thought about a girl called Kuina who had fallen down a staircase, and a woman called Lian who had cut a seal out of her own shoulder in a courtyard, and how this world kept putting the same story in front of him in different shapes.
Wapol came back the next afternoon with two officers and an appetite.
Luffy took Wapol. That was never a question.
The one in the armour with the throwing knives went at Zoro, and Zoro let him come, and drew.
The man had a good arm. The knives came in a flat spread, four at once, and every one of them was steel, and this was a court that had been built around a king who ate metal — the whole guard was armoured, weighted, plated, everything they owned was made of the one thing they were sure of.
Zoro put the black on the blade and cut the knives out of the air, and then cut the armour, and then it was finished.
Sanji had the other one. Usopp shot something. Chopper, who was a doctor and had said four times that he was not a fighter, turned into a thing the size of a bear and put Wapol's ministers through a wall.
The castle came off the mountain at the end of it, with Wapol going down the slope inside a snowball, and the whole of the crew rode the roof down five thousand feet of cliff face, screaming, in a way that Zoro would decline to discuss afterward.
Then Dalton set off the last of Hiriluk's powder, and the sky over Drum went pink, and it snowed cherry blossom on the whole island for an hour.
Chopper stood in it and cried. Nobody looked at him while he did it.
He turned them down.
He stood on the cliff in the pink snow and told Luffy he couldn't come, that he was a monster, that he'd only be trouble, that he wasn't a person and never would be, and Luffy shouted shut up and let's go at him and got on the ship.
Chopper came over the cliff after them about four minutes later, at a dead run, howling.
Kureha shouted something after him about not being late for the next hundred years, and threw a bag of something at him that he didn't catch, and stood on the edge of her mountain drinking until the Merry was out of sight.
Zoro took the first night watch out of habit.
Below him, in the cabin, a reindeer who was also a doctor was showing Nami a chart and being told he was cute and yelling that he didn't care. Sanji was cooking for seven for the first time. Usopp was explaining the avalanche to Vivi with his arms out, and the avalanche was getting bigger every time he told it.
Nami had been four days from dead and he'd noticed on the second morning.
That was the part he kept coming back to. Not the fever. He'd caught the fever. He'd caught it a day and a half before Vivi did and he'd bought her a night with his own hands, and it had still very nearly not been enough, because she had hidden it from him for three days and he had let her, because he had been watching for men on rooftops.
He had a method that would have made her harder to kill.
Zoro sat on the rail in the dark with Wado across his knees and looked at the water and made himself take the second half of that thought, the one he'd walked out of Kureha's room to avoid.
Not yet was not a reason. It was a thing he'd said out loud to stop a hundred-and-thirty-nine-year-old woman looking at him.
There would have to be a way. He didn't have one tonight.
He'd have one before somebody else got sick.