Chapter 47 The People of the Sky

They learned the shape of the door first, because you cannot open a door you cannot measure, and the network had been built on measurement the way a house is built on a foundation. Kael took the array's signal apart with the same hands that had taken apart the lock beneath the plaza, and she found what she had suspected from the first pulse: the pattern was not one signal. It was two. The rhythm that ran underneath — the old, slow, patient rhythm that the whole network felt in its bones — was the heartbeat of the door itself, the array's long machinery, the thing that had been holding the sky's healing for a century. But layered on top of it, faint as a voice through a thick wall, was a second rhythm: the rhythm of people. The rhythm of living hands, tending a machine the way Elena had tended the heart. The rhythm of a company of the first people, still awake, still working, still holding the door open at the far end of a century. "They built the array to run forever," Kael said, laying the readout across the drafting table in the plaza, the same table where the great map of the heart's architecture had once been laid. "And it could have run forever without them. They are not there to run it. They are there to answer it. The array does not need keepers — the way the heart did not need keepers, in the end. It needs heirs. And the first people left heirs in the sky." "How many?" Mara asked. She had come down to the First City to see the array, and she stood at the edge of the light with her notebook open, the way she had stood at the edge of every light since she was a girl, writing down the questions that needed asking. "How many people are holding that door?" Kael shook her head. "The signal does not say. It is not built to count people. It is built to count time." She looked at the readout, at the slow pulse that ran underneath the whole pattern, and her voice was the voice of an engineer reading a truth she did not like. "But I can tell you this. The rhythm of the living hands is slowing. The array is running as well as it ever ran. But the hands that tend it are old, Elena. Older than a century can be, and still alive, and still working. They are the last generation. There is no one after them." Elena stood at the array's housing and put her hand flat against the warm crystal, and the pulse ran up her arm, and she felt what Kael had read: the shape of people at the far end of a very long line, people who had been holding a door for a hundred years and were almost done holding it. "How do we bring them down?" she asked. "The station — the array — can it land? Can it descend?" "It cannot," the Warden said. It had come up the long stair again, and it stood at the edge of the plaza like a constellation standing at the edge of a night. "The array was built for the sky. It is not built for the ground. It is the last of the first people's sky-craft — the frame, the machinery, the life of their open-air city — and it has been one thing for a century. It cannot become another." "Then the people come down alone," Liana said. "In the craft the first people used to ascend. The records say the array was crewed by sky-craft, small ships that carried the company up when the air was lost. If the company is still there, the craft are still there. And if the craft are still there —" she looked at Elena, "— then the question is not how to bring the station down. The question is how to bring the sky down to it." The sky. That was the whole of the difficulty, and it was the difficulty that had been standing in front of them since the first moment the array had answered, and it was the difficulty that every engineer in the plaza had been circling the way a river circles a stone. The iron sky was thinning. The healing had been working for a century. But the last band — the high band, the band where the sky-craft would have to descend through — was still poison. It had been poison for a hundred years. It had been built to be poison, layered into the sky by the catastrophe that had ended the open world, and it did not thin the way the lower bands thinned. It waited. "The craft can descend through it," Elena said slowly, working it out the way she worked everything out, one valve at a time, one principle at a time. "The sky-craft of the first people were built to cross the sky when the sky was poison. They can cross it again. But they cannot land in it. They need a window — a span of clean air at the bottom of the last band, wide enough and deep enough to hold a landing. And that window does not exist yet." "It can be made," Kael said. "The valley tower clears the air of the valley. The network clears the air of the cities. If the network were to clear the air of the sky — to reach up through the last band with the same light that has healed the deep — it could make a window the craft could come down through. Not a door. A road, in the sky." Elena looked at the array, at the pulse running underneath everything, at the rhythm of living hands at the far end of a century. And she understood that the work ahead of them was not engineering. It was the same work the network had been doing since the beginning: the work of inheriting. The first people had left a door in the sky, and a company of their own to hold it open, and the network below had grown up — had grown old enough, strong enough, ready enough — to take the weight from the hands that had been holding it. "We clear the window," she said. "The way we cleared the deep. The way we cleared the valley. One span at a time, one connection at a time, one generation of keepers passing the plan to the next." She put both hands on the array's housing, and the pulse ran up both arms, and for a moment she felt the whole length of the door — from the heart in the deep, through the railway, through the valley, through the green beacon, up through the thinning sky to the ring of light and metal where a company of the first people were holding the far edge of a century. "Tell them we are coming," she said to the array. "Tell them the network has grown a road long enough to reach them. And tell them we will be at the window when they come down." The array pulsed. Three beats, a pause, three beats. And then, underneath it, layered like a second heartbeat, the rhythm of living hands at the far end of the door — and for a moment, Elena could have sworn, the hands began to beat faster.