I

Finn Callahan found it by accident.

He was crawling through the collapsed basement of an old-era research facility near what used to be Pittsburgh, looking for copper wire, when his flashlight caught a blue glow. The beam of light reflected off something smooth and curved and translucent, and for a moment, Finn thought it was ice. But it was May, and the temperature was warm, and ice was not something you found in the abandoned basements of the rust belt.

He wiped the dust off the surface. It was glass. A cylinder, maybe two feet tall, filled with a clear gel, and suspended in the gel was a sphere of blue light. It was pulsing. Slowly. Steadily. Four beats, pause, three beats.

Finn crawled further into the room. His flashlight beam swept across the floor, and what he saw made him stop breathing for a moment.

There were dozens of them. Glass cylinders, arranged in neat rows, each one containing a sphere of blue light. Some pulsed fast. Some pulsed slow. Some were almost dark. The room was maybe forty feet by thirty, partially intact despite everything — collapsed walls on three sides, the roof gone in places, rain dripping through the cracks in the ceiling — but the cylinders were undamaged. The gel was clear. The light was still there.

Finn called the one on the bottom row, third from the left, Seven. Its pattern was three short flashes, pause, three long flashes. It was not the same pattern as the others. Finn didn't know why this mattered. It just did.

He used a salvaged screen from an old-era terminal to record the patterns. Twenty-nine different configurations. Each one a language he could not understand but could feel in his chest.

II

The Recovery Squad arrived on the second day.

Commander Price stepped into the room and looked at the cylinders with an expression Finn couldn't read. Not excitement. Not indifference. Something in between.

"These are Federal Heritage property," Price said. "They'll be dismantled and catalogued."

Finn stood between the squad and the cylinders. He was one man with a crowbar. He knew this was stupid. He said, "They're alive."

Price looked at him for a long time. "Son, these are machines. Old-era experimental technology. They're not alive."

Finn didn't move. "They're not machines."

The squad moved around him. They didn't push him. They didn't yell. They just went to work. Finn watched as the first cylinder was disconnected. The blue light inside it flickered once, twice, and went dark.

He stood there until the last cylinder was taken. Then he picked up a piece of the old-era screen — a rectangular fragment, cracked but still reflective — and put it in his pack.

III

Three years later, Finn was in a different wasteland, another ruined city, pulling copper from the walls of an old hotel. At night, he slept in a tent with a kerosene heater. He took the screen fragment out and set it on a crate.

The moonlight came through a crack in the wall. It hit the screen. And for a moment — maybe two — the reflection threw three short flashes, pause, three long flashes, against the wall.

Finn watched. He knew, with the certainty of a man who had spent twenty-six years learning what was real and what was not, that this was just reflected moonlight. The screen was not alive. The flashes were not alive. There was nothing alive in this room except him.

But he sat in the dark and watched the light, and it was the most beautiful thing he had ever seen.

The next morning, he packed the screen into his bag, picked up his crowbar, and walked out into the rust and the wind, heading toward a place with no name on any map.