The children didn't flinch at the Ent anymore.
The youngest had been born in the green zone. To them, walls that moved and roots that hummed and trees that grew overnight were just how things worked. They climbed the Ent's lower branches the way children in other places climbed fences, and the Ent let them, branches shifting to make handholds whenever a small body got too high. Human children. Centaur foals. A demon child with grey-green skin who'd been born in the second year and had never known dead ground.
The settlement no longer looked like a settlement. Three miles of green zone in every direction from the shrine. Fourteen living structures with walls that expanded in summer and contracted in cold, each foundation humming with resonance arrays. Streets followed the root channels rather than cutting across them, because the roots chose the paths and the builders had learned it was easier to follow.
The elven botanists had stopped trying to catalogue the new growth. It changed faster than they could write. Wild grasses along the zone's edge, berry bushes near the water sources, root tendrils pushing through the soil in directions that followed no pattern anyone could map. The shaman said the network was developing its own logic. She'd stopped trying to understand it and started measuring it instead.
Six hundred and twelve people. Oswin's count. The ratio held — one in four found their way to the shrine. The rest farmed, built, cooked, raised children who'd never known the Barrens as dead.
Still no name. Nobody had pushed for one. Names went on maps. Maps got found.
Cassian Vane returned with eight people, three wagons, and a banner this time — deep blue field, silver circle. The wagons were heavy, canvas-covered. The horses were better fed than anything within a hundred miles.
"Sera." Vane smiled. He looked older, or more at ease in the Barrens. "We received your message. Your consideration of our proposal was noted and appreciated."
She hadn't sent a message. She'd said "we'll consider it" and walked away. Vane was treating eight months of silence as agreement.
They unloaded in the common hall. Gerd was there. Aldric. The centaur elder. Mira by the door, arms folded.
The gifts were good. That was the problem. Refined steel ingots of a quality Gerd hadn't matched even with resonance refinement. Quartz lenses ground to specifications Aldric had been chasing for months. Copper wire thinner than anything their refugees could draw. A bolt of deep blue fabric, fine enough that Sera's fingers caught on the weave — the same blue as the banner, as Vane's clothing, as the dye that held its color under the Barrens sun.
"Samples of what regular trade could provide," Vane said. "In return, we'd like to finalize the arrangement. Two scholars. Permanent presence. Observational access to the green zone's edge and the living structures."
Aldric was already examining the quartz. Gerd had a steel ingot in his scarred hands, testing the weight. The centaur elder watched without touching anything.
"Your scholars stay in the public areas," Sera said. "The structures, the green zone's edge. The shrine and the trunk are off-limits."
"Of course. We respect the sacred."
Sera didn't correct him. The shrine wasn't sacred to the Sower. But if Vane wanted to call it sacred, that was one more layer between the outside world and what happened at the roots.
"Two scholars. No armed escort in the green zone. Anything they observe goes through Oswin. I approve any materials they remove."
"Agreed."
They shook hands. Brief, firm, warm. Vane's palm was smooth — the hands of someone who'd never worked stone or soil.
Gerd waited until the common hall cleared before speaking. "The steel is better than what I can produce. The resonance process gets close but it doesn't match this. Whatever their refinements are, they're ahead of us."
"Which means they have something we need," Sera said.
"Which means they know it."
The centaur elder had been quiet through the whole exchange. He left without commenting, which Sera had learned meant he'd already made up his mind and didn't like what he'd decided.
The wagons left after two days. The scholars stayed.
Palor and Iette. Both quiet. Notebooks, measuring tools, a patience that looked practiced. They asked polite questions and took careful notes and never went near the trunk.
Iette spent her first full day in Aldric's workshop. She watched him calibrate a resonance array for the newest living structure — the curved geometry, the crystal placement, the feedback loop that made the enchantment self-sustaining. She asked one question.
"The energy retention rate — is that consistent across all arrays, or does proximity to the central trunk affect the efficiency?"
Aldric paused. The question was too specific for casual curiosity. She'd already run the numbers in her head before asking, which meant she had a framework for the answer and was checking it against what she observed.
"Varies," he said. "Closer to the trunk, the retention is higher. We haven't isolated why."
Iette wrote something in her notebook. The same thing Moll had been counting from the window — proximity. She wasn't learning. She was confirming.
Palor sat at the edge of the green zone for hours, writing in a hand too small to read from a distance. Soil samples. Growth rates. The boundary where living soil met dead ground, and how fast that boundary moved depending on the season and the number of people gathered near it.
Mira watched them from the wall. The northern section above the creek bed was holding — the scrap timber Korr had braced it with two years ago was still doing its job. But the timber was grey now, splitting at the grain, and nobody had inspected it in months. The new wall guards didn't know to check it because the person who'd taught them was gone.
"They're cataloguing the structures. The root integration. The same things Moll counted from the window."
"I know."
"Last time you at least hesitated."
Sera didn't respond.
The steel was in Gerd's forge by sunset. The quartz in Aldric's workshop. The blue fabric was being measured for clothing by a refugee woman who'd never worn anything that fine, her children watching with wide eyes as their mother ran the material through her fingers again and again.
The scholars' first report had already gone through Oswin — observations, measurements, sketches. Nothing that wasn't available to anyone who walked through the public areas. Nothing that crossed into what Sera had declared off-limits. Mira was right. The cataloguing was the point. Moll had done it from a distance. Now they were doing it from inside.
The trade was simple enough. They needed materials Equion could provide. Equion needed access to things it couldn't replicate. But Korr would have found the third thing — the angle nobody was supposed to see, the price that didn't need to be stated because both sides already understood it.
She walked to the shrine and sat against her root. The pulse was steady. No chamomile trace. Below her, six hundred and twelve people went about their evening in a place that still didn't have a name.