Priya was right. It was coming. I want that on the record.
We reached the nearest of the five remaining shards near sundown — forty stories of black glass punched through an intersection, humming that low humming I'd first heard on the night the sky broke. And standing under it, with my monster-sharp hearing, I finally understood what the hum was.
It wasn't noise. It was the shard holding a piece of the world shut. A Threshold doesn't sit on the street; it presses against it, keeps a seam of reality from closing, and the hum is the sound of that pressure — a single, endless, structural note. The same note, I realized, that had sealed the door behind us in the Descent. The same note, Ada's map whispered from behind my eyes, that ran all the way down to the center of the city, to the Root, because the shards and the Root were the same substance. Thresholds were just the Root, leaking.
"I'm going to copy it," I said.
Priya did not disappoint. "You're going to copy a building."
"I'm going to copy what the building does." I put my hand against the black glass; it was warm, always warm. "It's not a creature. It's not on the ledger — you can't license a hole in reality. It's the most off-the-books thing in this whole city except the Root itself. And if I can copy the hum — the pressure, the thing that holds a seam open or shut — then I can open doors that are closed and close doors that are open, and I can feel my way to the center along the note it's singing." I looked up the impossible height of it. "Also I don't have a way to copy it, because copying needs me to see a skill used, and a building doesn't use anything. It just is."
"So how—"
"I make it do something." I lifted my one real weapon — nine percent of a herding-voice, ground up on forty Stragglers at six in the morning — and I aimed it, for the first time, not at a monster.
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I aimed it at the shard.
I have thought a lot about the difference between power and precision. I could not command a Threshold. But a herding-call isn't a command; it's a provocation, a sound in the oldest language that says respond to me, and a Threshold, at the root, is a living pressure — and when I threaded nine percent of answer-me into that endless structural note, the shard did the one thing I needed.
For half a second, it pushed back. The hum spiked. The pressure flexed. The shard used itself, reflexively, the way you'd flinch at a sound in the dark.
And I was watching. And the System clicked — louder than it had ever clicked, reluctant and enormous.
[Skill copied: Threshold Hum (—%)]Source: —— the System does not have a licensing category for this. ——You have copied a property of the infrastructure. Off every ledger there has ever been.Leo. Nobody has done this since Ada.
The cost came in like a tide going out. My hearing didn't sharpen this time — the world got deep. I could feel the seams now, everywhere, the places reality was pressed shut and the places it strained: the sealed drains, the locked doors, the hairline where the sky itself had cracked on the first night. And running under all of it, south and down, a single note pulling at me like a landmark, like a wound, like home.
The center. The Root. I could feel it now.
┌─ STATUS ─────────────────────────┐ Class: Copyist — Lv. 14Off-Ledger Skills(unrevocable): • [Straggler's Call] — Lv. 9 (9%) • [Clingstep] — Lv. 4 — acute hearing • [Threshold Hum] — Lv. 1 — ✦ raw · adds: seam-sense · can open/seal thresholdsDiscrepancy Rating: ⚠ HIGH └──────────────────────────────────────┘
"Leo," Priya said. Not teasing now. She was looking behind us.
The Redactor at the end of the street was no longer alone. Down every avenue, from every direction, the crossed-out shapes were turning toward us at once — a dozen of them, two dozen, the whole city's worth, every caretaker functionary within reach pivoting to face the enormous new hole I'd just torn in their careful page.
And far, far to the south — over the exact spot where a wall of welded cars kept a hundred people alive — the sky began to darken, and thicken, and a sixth shard began, impossibly, to grow.
They couldn't erase me fast enough. So they were going to give me a reason to come to them.