Land began where Tarin's chart said there should be open sea.
At first he took the darkness ahead for another bank of rain. The storm had followed the boat since Eiden, sometimes near enough to flatten the waves and sometimes no more than a black seam on the western sky. Now the seam stood upright before him. White water struck something beneath it.
Tarin lowered the sail and listened.
There were rules for approaching an unknown shore. Take soundings. Watch the birds. Read the break of water. Compare the compass against sun or stars. Record every uncertainty before it had time to become memory.
There were also rules for storms, the first of which was not to sit in a twelve-foot boat explaining procedure to yourself.
He shipped the oars.
The lead line found bottom at eleven fathoms, then seven, then twenty-three. Tarin tested the knots twice. The stone came up black and warm, with a thread of weed clinging to its drilled eye.
Warm stone. Cold sea.
He wrote both facts in the margin of his coastal sheet. The ink ran under his thumb.
Lightning opened the horizon.
An island appeared inside it: a sloped back of rock, a narrow landing, and a lighthouse without a flame. Between Tarin and the shore stood a row of black pillars. Most remained below the waves. Their tops broke the surface one after another as the water fell, too evenly spaced to be natural and too large to belong to any pier built in the present age.
The brass needle on his compass turned toward them.
Not north. Not the island. The stones.
Tarin closed the case.
“One problem at a time,” he told the rain.
The rain declined to agree.
He rowed between the pillars. Each made his teeth ache as he passed. On the third, something pale had been wedged into a vertical crack. Tarin leaned far enough to see a strip of bone marked with short diagonal cuts.
He did not touch it.
The commission in his oilskin case called the island No-One's Ground. The Academy survey called it a probable shoal. The fishermen who had taken Tarin most of the way from Eiden called it nothing at all. They had put him into the smaller boat when the storm appeared and refused twice his promised silver to come farther.
Master Liora Nemm had called it his only chance.
The keel struck gravel. Tarin dragged the boat above the reach of the waves, tied it to a ring driven into the rock, and added a second knot after looking at the storm. He took his map case, the sealed commission, a ground needle, two days of hard bread, and the short survey hammer his mother insisted was not a weapon.
A stair climbed from the landing.
Someone had painted numbers on the outer edge of every tenth step. The sequence began correctly: ten, twenty, thirty. After seventy came sixty. After that, ninety had been crossed out and replaced with eighty in a different hand.
Tarin counted for himself.
At eighty-seven he passed a weathered bench. At ninety-nine the same bench waited above him.
He stopped.
The bench had a split seat, a rusted iron brace, and a pale cut in the wood. Tarin set his thumb into the cut. Fresh sap dampened his skin.
Behind him, the first bench remained visible below.
Two benches, then. Made from the same tree, damaged in the same manner, positioned on different turns of the stair by a builder with either a sense of humour or very limited imagination.
Tarin wrote that explanation down because it was possible.
He climbed on.
The lighthouse stood within a low wall at the island's summit. No path continued past it. Tarin checked anyway, circling the building with one hand on the wet stone. The tower was twenty-eight paces around. A storehouse leaned against its northern side. Three iron cables ran from the roof into separate cracks in the ground.
There was no green door.
When Tarin completed the circuit, a green door stood beside the storehouse.
It was narrow, freshly painted, and fitted with an iron knocker shaped like a closed hand. A small slate hung from it by string.
KNOCK ONCE, the slate said.
Below, in smaller letters: MORE WILL NOT IMPROVE THE ANSWER.
Tarin knocked once.
Bolts moved on the other side. The door opened inward, and an old man holding a kitchen knife looked out at him.
The knife was small. The onion in the man's other hand made it less alarming.
He had grey hair cut unevenly at his jaw, a short beard, and the stooped stillness of someone listening through a wall. A cord ran from his belt to a hook inside the doorway. Another cord crossed the floor behind him and vanished around a corner.
The old man examined Tarin's boots, hammer, map case, and face.
“You counted the stairs,” he said.
It was not the greeting Tarin had prepared.
“Ninety-nine.”
“Today?”
Tarin looked back. Rain curtained the stair. “How many should there be?”
“If I knew, I would not ask visitors.”
“Cael Arven?”
The old man's expression did not alter. His knife entered the onion with a soft crack.
“Who wants him?”
“The Academy of Measures.”
“Then no.”
The door began to close.
“Eiden is waking,” Tarin said.
The door stopped against the old man's bare foot.
For the first time, he looked directly at Tarin.
“That is not a sentence surveyors use carelessly.”
“I didn't.”
The old man waited.
Tarin removed the case from his shoulder. “Nine weeks ago the hospital's fever ward relit without a source. It burned through three storage shards and continued after the Binder cut the form. Four days later, the old seawall began giving off heat at low tide. Now the municipal wells refill between midnight and dawn.”
“Useful problems.”
“The water tastes of copper. Children are dreaming the same underground road. Last week a door opened in a house demolished before my grandfather was born. A boy walked through it and came out beneath the west reservoir.”
The onion knife lowered.
“Was he harmed?”
“Not physically.”
“That answer will comfort his mother.”
“His mother is mine as well.” Tarin heard the anger in his own voice and let it remain. “The doctors think the pulse stopped her healing charm from failing. The city witches say every pulse makes something under Eiden hungrier. The Academy says there is a Crownwork conduit beneath the coast.”
“The Academy says many things when it wants permission to dig.”
“They say you surveyed it.”
Thunder moved through the stones below. For an instant the cord at the old man's belt drew tight toward the interior of the tower.
He glanced down, placed the onion and knife on the floor, and untied himself.
“Come in before the island decides you belong outside.”
The first room was round and warmer than it should have been. Shelves held jars, tools, folded clothes, lamp oil, dried beans, and stacks of paper weighted with stones. None of the sheets displayed sigils. They were coastlines, foundations, road sections, water tables, elevations, and close drawings of cracks.
Ordinary maps.
Tarin had expected the infamous last cartographer to live among wonders. Instead, he lived among revisions.
Red cord ran along the walls at waist height. Small brass labels named the door, hearth, stair, pantry, and table. Arrows showed which way each opened. A white line had been painted from the green door to the nearest chair.
Cael saw him reading.
“I no longer know where a room continues when I cannot see all of it,” he said. “The cord saves crockery.”
No apology. No invitation to pity.
Tarin set his case on the table and removed three sheets.
The first showed Eiden's streets, buried works, and current ward failures. The second showed witch households, old well agreements, and places where animals refused to drink. The third was an Academy reconstruction of the coastal Crownwork, clean and confident where the other two were crowded with questions.
Cael did not touch any of them.
“Who made the first?”
“I did.”
“Who checked it?”
“Two municipal surveyors, a reservoir engineer, and anyone living on the affected streets who was willing to speak with me.”
“Better.” Cael indicated the second. “And this?”
“Seven witch families. They disagree about almost everything except the hunger.”
“Better still.”
“The Academy calls their evidence unrepeatable.”
“So is drowning.”
Tarin took out the commission. White wax carried Liora Nemm's seal: a lamp above an open hand.
Cael looked at the wax and went very still.
“Master Nemm says the conduit can be isolated if we know where it joins the old Crownwork. She says you carried the only complete central survey out of Orda Vey.”
“Liora knows I burned it.”
“She says you burned the paper.”
Rain struck the tower in a single hard sweep.
Tarin continued. “The Academy believes you can reconstruct it.”
“The Academy once believed a goblin ancestor was a mineral property. Belief survived the correction better than the ancestor did.”
Tarin pushed the sealed letter across the table. “People in Eiden may die.”
“Yes.”
The answer was quiet and unbearable.
“Then help us.”
“That is not what your letter asks.”
Cael held the envelope near the lamp. Heat softened the white wax. Two hair-thin impressions appeared beneath Liora's seal: a small crown and the outline of an empty doorway.
Tarin had known about the crown.
He had not known about the door.
Cael looked up. “The Academy wants a survey. The restoration council wants the route to the Last Well. And someone who favours abandoned doors would like to know whether this island still has one.”
From the passage behind him came the faint sound of a latch lifting.
Tarin turned. The corridor was empty. Its far end contained a red cord, a brass label, and a rectangle on the wall where green paint had begun to show through whitewash.
Cael closed his eyes.
“Three commissions,” he said. “That is almost enough honesty to be dangerous.”
Tarin's fingers tightened around the survey hammer. “What is behind that wall?”
“Wrong question.”
“What is the right one?”
“Who taught it your name?”
Tarin said nothing.
Cael pulled out a chair, following the white line with one hand. He sat and placed a clean notebook between them.
“I will not give you a complete map,” he said. “I do not possess one, and if I did, you would be the last person I trusted with it.”
“You don't know me.”
“Precisely.”
“Then my crossing was wasted.”
“Perhaps. But your mother is alive tonight, your city has not yet opened the buried road, and the ship behind you needs three days to bring its engine through my storm.”
Tarin looked toward the shuttered window.
Cael turned the notebook so its first page faced him. At the top, in Cael's narrow hand, were two words: FIRST NIGHT.
“For three nights,” Cael said, “I will tell you why human magic died, why we nearly killed the rest of it bringing ours back, and why no map can spare Eiden the choice it is about to make.”
Tarin sat.
“And after three nights?”
“You decide what to draw.”
Cael selected a piece of charcoal. He did not lift it immediately. His hand moved once toward the ink, corrected toward the paper, then waited as though the distance between them required negotiation.
“At seventeen,” he said, “I believed a road became safer when only one version of it remained.”
Tarin opened the notebook.
Outside, beneath the storm, the black stones began to hum.