The third letter was thinner than the two before it, and the Builder — who has learned to weigh a letter before breaking its seal — weighed this one and frowned. One grievance only. After two crossings and a dozen mendings, the Far Tower's seekers' wing sent back a single complaint, and it was an old one in new clothes: some scrolls still will not open. A seeker would call for the fair copy of a life, and the reading-frame would show blank glass; or the scroll would slip past the frame altogether and tumble into the satchel, unread, like a guest refusing the table to eat on the doorstep.
The lanterns crossed at moonset — the third crossing, the habit long since law — and the trail they lit was short, and it ran somewhere no trail had run before: backward, into the Builder's own last mending. The press had indeed learned, last visit, to mark each scroll with its seal; that mend was true, and held. But the mark was copied from the scroll's name, and the name — there was the worm in it — was whatever a stranger's quill had scribbled in the moment of handing it over. So a scroll of true parchment, honest to the touch and declared honestly, could arrive wearing a lie — a letter, kind unknown, said one, in a hand that plainly did not care — and the vault took the lie for a name and kept the scroll beneath it. And the vault's reading-frames, when asked, trust the name and never the substance. Honest parchment, shelved under a falsehood, refused by its own glass.
The law went into the wall that night, and of all the laws the Far Tower has cost, this one may be carved deepest: the name a thing is kept under must be earned from what the thing is — never copied from what a stranger scribbled on it.
Then the shelving, which is where a law earns its keep. Two shelves, two answers. The tower's teaching-scrolls are proven at the gate, every one — nothing joins that shelf whose substance is not true parchment — so their kept name is now always re-pressed to the true mark, whatever the quill wrote; even one name that arrived shouting was pressed quiet on its way in. The seekers' record-scrolls are a more mixed company. Where a scroll's declared substance speaks with authority — true parchment, either of the two formal letter-kinds, plain script — the substance names the scroll and the scribble is overruled. But some quills wrap their scrolls in grey, unmarked stuff, a declaration that is only a mumble and might mean anything; there the checked scribble stands, for to tighten the gate against mumbling would be to turn away honest scrolls the old law has always admitted. The gate admits exactly whom it always admitted. Only the shelving changed. The Builder wrote that sentence into the margin twice, because a mend that quietly narrows a door will be cursed one day by someone it locked out.
Then the masked order walked the mending, as the wing's law now demands, and the rite did the thing rites are for: it found a crack no letter had named. Handed a scroll of true parchment wearing a lying name, the tower's reading-scribe — the quiet spirit who takes each arriving scroll and speaks its contents into the record — fainted dead away, flat on the boards, quill still in hand. He too had trusted the scribble all his life, and given a lie over honest parchment he could not so much as begin. He reads by the earned name now, and thanked no one for the lesson. The order noted, in their flat way, that the proof of the mend had caught what the mend had missed; which is the whole argument for proofs.
One shelf was weighed and handed back untouched: the courier-letters, whose names are pressed by the Hold's own hand in the moment of their making. No stranger's quill has ever touched one. Innocent — of this, at least; their older sin still stands on last visit's list.
And then the Builder went home, meaning to rehearse the new law in the Hold's own practice-cellar, and found the cellar dark. Not newly dark. Dark always. The practice-vault beneath the Hold — the little twin where mendings are rehearsed before they cross the water — had for the whole of its life written receipts for scrolls it never kept: every scroll handed down was praised, ticketed, and dropped into nothing, and every receipt pointed at an empty alcove. No one had noticed, through three crossings and three seasons of mending a patron's shelves, because the cellar had never once been asked to serve a scroll back. The lantern-bearers had swept every wing of the Far Tower, and their own cellar had sat dark beneath their feet the while. The Builder stood a long moment with the lantern up, and did not much enjoy the light.
The mend was plain, and was made plainly: a true shelf, so the practice-vault keeps what it is handed; a little hatch, so it serves what it keeps — and serves it at the very addresses the old receipts had always named, so nothing else in the cellar needed teaching new roads. It behaves now as the Far Tower's vault behaves, down to the pressing of names, so any law carved for the far shelves can be rehearsed at home first. The last rite of the visit sent a lying-named scroll of true parchment down through the hatch, and the practice-frame showed it whole and true — the first scroll the cellar has served in its life.
By the wing's door the Builder cut the short list of what was not touched: two lesser shelves — the schooling-scrolls and the plea-scrolls — still keep a stranger's scribbled names, set down for a later crossing, because no one had asked and a tower is not rearranged uninvited. Then home, and the entry in this Chronicle; and beneath the entry, in the space where morals go, the quill set down a line without being asked: nowhere is darker than the floor beneath one's own lantern.