The survey team reached the threshold at first light, which was also the only light, because the sky on this side had been the colour of old pewter since they’d arrived and showed no particular interest in changing. Maren Solt crouched at the lip of what the find-report called a shoreline feature and what was, in fact, a drop of approximately eight metres onto a salt flat that stretched until the haze swallowed it whole. She had a field compass in one hand and a pencil in the other, and she was doing the thing she did when the terrain refused her instruments — writing very small numbers in the margin of her form and crossing them out, one by one.
Cartwright stood behind her and waited. He had learned, in fourteen months as her junior, that she would tell him what the numbers meant when she was ready, and not before.
The air tasted of mineral and distance. Wind came off the flat at long intervals, not gusting but arriving, as if something far out in the white had exhaled. He noted the horizon under atmospheric anomaly (non-hazard, provisional) and let the category carry what the language couldn’t quite reach.
“Three-twelve to three-forty,” Solt said, not looking up. “That’s the reading band I can’t account for.”
“Could be the crust. Seven-Linden had similar margin drift over salt deposits.”
“Seven-Linden was flat.” She stood, brushing salt grit from her knee. “This wasn’t.”
He looked at the drop again. She was right. The flat below was level to an almost ostentatious degree, but the ridge they stood on had a grain to it, a direction — not entirely geological, or not only. More like something had been laid down rather than formed, over a very long time, by something that had possessed reasons. He noted that under terrain (atypical formation, origin contested) and did not call it anything further.
“Previous team recommended quarantine,” she said. She hadn’t opened her own copy of the file. She rarely did, after the first read. “Pending further survey.”
“Yes.”
“That was eleven years ago.”
He knew. The file was thin in the way that meant not incomplete but deliberately not added to — the particular thinness of a recommendation that had been easier to extend than to revisit. Someone upstairs had countersigned the extensions twice, and both times the signature belonged to a director who had since retired, whose successor had flagged the posting for reassessment. Which was why Solt and Cartwright were here in the pewter light with salt grit in their boots instead of someone more senior.
“Do you know why Ferris asked to have it struck from her record?” Solt said.
She was still looking at the flat, not at him. He’d read the original surveyor’s notes three times on the crossing — the formal request, the procedural denial, both filed alongside the original recommendation as if the Compact hadn’t known where else to put them.
“The file doesn’t say,” he said.
“No.” She capped her pencil. “It doesn’t.”
They stood with that for a moment. The wind arrived again from somewhere far out across the white.
“We’ll descend at the eastern spur,” she said. “Less grade.”
He turned to check the spur and she was already moving.
He noted the time — 06:14 by his watch, reset to local interval on day one, local interval being a matter of estimation since the sky gave nothing to fix it by — and followed her along the ridge. The salt crunched underfoot. The flat extended, patient and level, below.
The eastern spur gave onto a loose switchback, manageable if you faced the slope and didn’t hurry. Solt descended without apparent adjustment to her pace. He watched his footing and did not watch hers.
At the bottom the flat was different than it had looked from above. Not in any way he could immediately specify — not in the light, not in the texture of the crust, not in the temperature. In something about the proportion of things, the scale. Standing on it rather than above it, it was simply very large. The ridge behind them was already acquiring the quality of a decision made rather than a feature of terrain.
Solt checked her compass. The reading band held.
“Still three-twelve to three-forty.”
“Yes.” She marked it. Then: “Ferris retired two years after filing. Did you note that?”
“Yes.”
“Within normal range.”
“Yes.”
She looked up from the compass then, briefly, toward the horizon. Whatever she was thinking about she kept to herself, and he didn’t ask, and after a moment she looked back down.
“Eastern transect first,” she said. “Standard interval.”
He opened his form to the transect grid and uncapped his own pencil, and they began.