Frederick wished the thing had looked dangerous.
A man could prepare for teeth, fire, or depth. Claws were almost polite compared to this.
The pool only turned in its basin, pale bands winding through darker ones, quiet as bad intent.
Ezekiel came up beside him breathing through his mouth. He still had the cradle line looped around his wrist, as if rope could argue here.
"Tell me he says that to everyone," Ezekiel muttered.
"One at a time," he said.
Frederick looked at him. "That was not the question."
"It was the useful answer."
Frederick set the resonance housing on the black stone and watched the pin twitch toward the basin hard enough to hum. The needle liked the pool too much. That made him distrust it.
"What does it test?" he asked.
"Fit."
"To what?"
Void finally looked at him.
"To what you can survive."
Ezekiel swallowed.
"And if the fit is bad?"
"Then it tears."
"Can you pull a man back out?" he asked.
"Sometimes."
"That sounds poor."
"It is."
Ezekiel rubbed his hands over his face.
"Maybe we don't need it," he said. "Maybe we take the notes, fix the boat, leave, and tell nobody we found a pond that hates us."
Frederick almost said yes. The boat was split. The threshold behind them was narrowing. Then he looked at the pool again and knew it for a lie.
If they left unchanged, the next bad place would kill them in a more ordinary manner.
"I go first," he said.
Ezekiel jerked toward him. "Father."
"You go first, I spend the whole time wanting to drag you back out. That helps nobody."
"That is a terrible way to make me feel better."
"I wasn't trying."
Void gave one short nod.
"Bare hands," he said. "No tools. No metal in your grip."
Frederick bristled at once.
"My hands are tools."
"Then try to keep them."
He stripped off his gloves and tucked them into his belt. His fingers were already stiff from cold and salt. He put one bare palm on the bent cradle hook they had dragged out of the launch.
Then Frederick stepped down into the basin.
The pool met him at the boot tops.
Not water. Too smooth for water. Too heavy.
By the second step it had reached his knees without splashing. By the third it closed over his thighs and pulled at every seam in his clothes as if checking what had been stitched badly. Cold went through him so fast his teeth knocked together.
"What do I do?" he snapped.
Void answered from somewhere above him.
"Work."
Then the basin took the ground away.
Frederick did not fall so much as lose all agreement with down. The cold dark rolled over his shoulders, across his mouth, into his ears.
Then his hands struck iron.
Not one piece. Dozens.
Broken teeth. Split pins. Cracked braces. Twisted wire. A hinge torn open along the rivets. A chain parted at one ugly weld.
He grabbed at the nearest brace and pain shot through both arms so sharply he almost let go. The metal was freezing and hot together, every failed seam speaking straight into his bones.
This was not a pool.
This was a heap of everything built wrong.
The pieces slammed apart.
Frederick caught two before they spun away and jammed them together by instinct. Wrong angle. The law bit him for it. He swore and forced himself to stop guessing.
Load. Shape. Stress. Fit.
The next time he caught the split ring and the bearing race, he turned them until the damaged faces lined up. Not by sight. By the way the strain eased a hair in his hands. He pressed. The click of rightness ran through his wrists and into his elbows so hard it nearly made him cry out.
The dark shifted.
More pieces came.
Some he knew at once: a gear tooth from an arena frame. A burner collar from his own bench. A cracked latch from the loft chest Ezekiel had broken at twelve and lied about for two months. Others were stranger.
It did not matter. Every piece wanted correct joining under pressure.
Frederick bent over the work because that was what it was now. Every time he rushed, the pool punished him. Every time he forced a seam, the cold cut deeper. When he stopped trying to win and started trying to read, the pieces told him more.
This brace would hold if the load ran left.
That pin had failed because the hole was bored greedy and thin.
The cracked housing had begun at the hidden stress where the maker told himself close enough.
His hands moved faster.
The dark around him became less like drowning and more like a shop with no mercy. He aligned split teeth. Set hooks. Turned bent faces until they seated. Once, when a chain link refused to close, he braced it against his knee and thought he heard his own knuckle crack before the metal yielded.
Memory kept trying to break in sideways. His first apprentice hammer with the head set crooked. His father knocking a warped plate back onto the bench and telling him to look again. Years of badly repaired winches brought to him by men who wanted miracles and discounts. The cradle in the plane, half-torn, because one hook had taken a bad pull at the wrong angle.
The pool used all of it to see whether he would still make things hold while it hurt him.
He did.
By the time the last shape came apart in his hands, he was shaking hard enough to lose his breath. It was the bent cradle hook again, larger now, stripped to its force and failure. He saw at once where the pull had gone wrong. Not the hook. The brace behind it. One plate had carried more than it should have because the line above had drifted starboard under bad weight.
He reset it in the dark with both bleeding hands.
Something answered.
Not a voice. Nothing so theatrical.
The whole pressure of the basin ran through his palms, up his forearms, into his chest. For one terrible moment he felt every seam in his own body as if he were another job on the bench.
Then the pool spat him out.
He landed on the black stone on hands and knees and coughed up water that tasted like salt and iron shavings.
Ezekiel dropped beside him at once.
"Father."
Frederick slapped one wet hand at him without looking up.
"If you grab me now, I'll throw up on your boots on purpose."
Ezekiel withdrew a fraction. "That sounded more like you."
Frederick kept coughing until the dark spots stopped jumping at the edge of his sight. His fingers hurt with a clean, terrible precision. When he lifted them, thin pale lines showed through the skin from wrist to knuckle, as if someone had drawn seam marks below the flesh.
Void crouched beside him, not close enough to help.
"What did it take?" Frederick asked.
"Less than it could have."
"Useful, as always."
Void's gaze dropped to Frederick's hands.
"Worked metal answers you now. Not fully. Enough to matter."
Frederick turned and put his palm on the bent cradle hook.
He felt it immediately.
Not magic. Not a thunderclap. Just information where none should have been. The hook's strain ran into his hand and opened itself. Hidden twist in the brace plate. Thinning edge near the pin hole. The exact place it wanted reinforcing before it failed again.
Frederick sucked air through his teeth.
"That's rude," he muttered.
"Is it bad?" Ezekiel asked.
"It's exact."
Void stood.
"His turn."
Ezekiel stared at the pool as if it had personally insulted his mother.
"I saw what it did to him."
"You saw him survive it," Void said.
"That is not the same thing."
Frederick pushed himself upright. His knees argued. His hands still felt full of nailed light.
He caught Ezekiel by the back of the sleeve before the boy could step away.
"Listen," he said.
Ezekiel's eyes flicked to his face, frightened and trying not to show it.
"Don't go in there trying to be me. That's already taken."
"I was not planning to become you."
"Good. One of us is enough. When it leans on you, plant your feet and keep breathing. That's all."
Ezekiel looked down at Frederick's marked hands, then toward the pool.
"That did not look like all."
"No," Frederick said. "It looked worse. Still do it."
Ezekiel unwound the cradle rope from his wrist, set it down carefully, and stepped into the basin.
The pool took him harder.
Frederick saw it in the first instant. The surface did not climb Ezekiel the way it had climbed him. It seized. The boy's shoulders bowed before the dark even reached his waist, as if something heavy had already settled across them.
Ezekiel hissed through his teeth.
"I hate this place."
"Good," Frederick said, because it was the only thing he could offer.
By the time the pool closed over Ezekiel's chest, his legs were shaking. No swirling metal this time. The basin around him darkened and thickened until it looked like he was standing in wet stone with an invisible beam laid across his back. The shoulder the wardens had battered under the arena lit up first, and the pool hung the whole load from it.
Void watched without expression.
"Do not kneel," he said.
"Helpful," Ezekiel gasped.
Then his right leg buckled.
Frederick moved before he knew he was moving. Void's hand hit his chest and stopped him one step short of the basin.
"No."
"He's folding."
"If you pull him now, he keeps the damage and gains nothing."
Frederick very nearly swung on him for that. The only reason he did not was that Ezekiel was still visible above the dark.
Barely.
The boy had gone white around the mouth. Veins stood in his neck. His arms hung low at first, then jerked upward as if catching a load no one else could see.
"No," Ezekiel said thickly, to the pool or to himself. "No, not again."
His knees hit the basin.
Frederick's nails dug into his own palm so hard the fresh marks in his hands flared.
Ezekiel coughed, spat dark water, and planted one foot.
"Up," Frederick heard himself say.
Void did not look at him, but he moved his hand away from Frederick's chest.
The pool leaned harder.
It showed on the chamber now, not only on Ezekiel. The ropes by the ridge pulled taut against nothing. The burst chest on the shore rattled. The black water overhead gave one deep groan. Frederick could read the shape of the load without seeing it. Everything in the basin was trying to turn burden into body.
"I didn't mean to kill him," he ground out.
The words hit Frederick like a thrown tool.
Arena. Blood. Same day.
The pool pushed.
Ezekiel got one foot under himself, then the other. His back stayed bent. His breath came in shredded little drags. He looked like a porter trying to lift a gate off a trapped man with no chance and no better plan.
Still, he stood.
The dark climbed to his shoulders, held there, and then began to drain.
Not quickly. Reluctantly.
When Ezekiel stumbled out, Frederick caught him this time because the pool had already let go. The impact drove both of them half a step back.
The boy was heavier. Not by size. By the way his weight arrived all at once and then settled. Dark bruised bands had risen across his collarbones and down both shoulders like old carrying straps pressed into the skin.
Ezekiel blinked at the ground.
"I think," he said hoarsely, "something in there hates me."
"Get in line," Frederick said.
Void looked from one of them to the other, measuring.
"Metal under the creation side," he said to Frederick. "Burden for him."
Ezekiel made a face.
"Burden sounds unfair."
"It suits you," Void said.
Frederick helped him sit against the ridge and reached automatically for the cradle rope. Ezekiel took the far coil with one hand.
He should have sagged under it.
He did not.
The surprise on his face matched Frederick's closely enough to be family.
Then the pool changed.
The turning surface in the basin dropped a hand's depth and began to spin faster. The silver pools below the ridge answered one after another. Loose iron teeth near the broken chest skipped across the black shore. Overhead, the false sea flexed once, and every delayed sound in the chamber came back at the same time.
Frederick was on his feet before he knew it.
"What did we do?"
Void did not answer at once. He was looking into the basin with the flat annoyance of a man whose prediction had arrived on schedule and was still inconvenient.
"Move the gear," he said.
That was enough to make Frederick obey first and argue later. He grabbed the battery frame. Ezekiel came up with the cradle as if his shoulders had been built for nothing else. Both of them turned back at the same moment when the basin floor gave a cracking sound like ice taking weight.
Shapes were climbing out of the pool.
Not flesh. Not clean metal either.
Black stone, drowned chain, salt-white plates, old hooks, broken braces, and something under all of it that moved before the body had finished. The pieces dragged themselves together around an upright plan. A head without a face. Arms jointed in too many places.
Frederick felt the new sense in his hands take one horrified reading after another.
Nothing in that thing had been assembled by accident.
The pool was building an answer.