The catalog hall is a room the wind has not been invited into, except the little marsh-smell that sneaks under the east door like a bookmark.

Sable sits on the step of the pedestal, not a throne. Quill occupies the rose like a neighbor who has heard this lesson before. “Our magic,” Sable says, “is keeping the trade uncut.”

The trade is simple when you do not dress it. Walk a place. Ink what you walked. Tend the paper so the next walker can find it. Call numbers are promises: this is findable again. Oral stories need tellers. Paper stories need dry rooms and copies that admit they are copies. Wetlands need to stay sponges. All conservation.

“A map is a choice,” Quill says, and then, because this is Foldhaven, adds the other true sentence: “A fen is also a fen. You may hold both. What you may not hold is WASTE as if it were measurement.”

Tansy asks, almost too quiet, “What do you want us to carry?”

“A message to the hall. No peat-road. Mend the boardwalk. Update the Atlas by walking. Market stays on the hill. West road remains the wagon-path. We will not vanish the wrens for a grudge against curves.”

Under the peat, you imagine a trade you cannot see: rain stored, fry hidden, flood slowed. Mutualism, Penn would say, if Penn were allowed to use a school word on a compass rose.

Quill taps a call number with a paper foot and does not peel it off. “Even this stays. Indexes, copies, flood-marks—those are how towns remember their sponges. Our old songs said the cellars drink if the fen is blanked. Your Penn would say the Cinder’s extra has to sit somewhere, and peat is a chair. Same hinge. Different music.”

A wren lands on the east-door lintel and looks at you with an eye that is only bird. That is how living-book tales get a face, you think. Not a lie. A likeness, stitched: the Spine breathes damp; the Atlas wants true; people want wagons; the fen wants to keep being a fen.