The afternoon light in the washroom had the color of cold dishwater. It filtered through the high river-facing iron angled slats, cutting through the thin drift of crushed pipe lime that still hung in the air after the morning’s chiseling.
Pella Rook lifted the reclaimed roofing slate onto the pair of forged iron brackets Eren had hammered into the wet stonework wall. The slate was two feet wide by three feet high, salvaged from an old cooperage roof down on Wharf Street. Its surface was dark gray, veined with hairline traces of silver mica, its edges chipped but dressed flat along the top and bottom.
“Hold the left edge while I set the wedge,” Eren said. He leaned his shoulder against the stone. He tapped an oak peg into the bracket eye with a light wooden mallet. The slate settled against the wall with a firm, hollow click.
Pella stepped back, wiping her hands on her canvas work apron. Her fingertips were stained with red grease pencil and fine stone dust. On the wooden shelf beneath the slate rested her father’s brass measuring tongs, a glass bottle of dark oak-ink, two sharpened goose quills. A clay pot mug of boiled tea that had grown cold an hour ago.
“The College of Summoners runs on blood-debts and eternal service oaths,” Pella said, picking up the stub of soft red grease pencil. She turned the wax metal tube between her fingers, testing the blunt point against her thumb. “They write contracts on thick parchment with gold leaf, binding spirits to ninety-nine years of uncompensated labor. When the spirit gets tired or the rune-circle leaks, the summoner simply tightens the silver choke-chains until the entity fractures. That’s why the spirits in the mountain water gates went mad.”
Eren picked up an oily rag and wiped down the brass frame of the Courtesy Arch where water drops had beaded on the metal. “And down here on the wharves, a man who doesn’t specify his cart hauling rates before loading the wagon gets his cart tipped into the mud. If you want honest labor, you put the terms where everyone can read them.”
“Exactly,” Pella said. “Every trade in Lowbank has a work docket. A wheelwright has a timber ticket. A carter has a bill of lading. This door isn’t a divine miracle. It’s a town work order.”
She stepped up to the slate board and began to write in clean, measured block letters, framing the settings in a strict forty-six-character ledger:
Duration: Twenty-four minutes. Timing: Voluntary lawful lunch break. Payload Mass: Seven pounds maximum. Wage: One Silver Groat in clockwork locked deposit. Failsafe: Thirty-second autonomous revocation.
Behind her, the small sound horn set into the left upright of the brass arch gave a sharp, metal click.
The sound of Harrowby came through the sky-slit with sudden clarity. Not the howling roar of an elemental plane, but the ordinary, unrushed background of a Yorkshire heavy-duty estate. Pella heard the steady, heavy drumming of northern English rain on a metal roof, the distant hiss of outward tires rolling over wet tarmac on the bypass road, and the rhythmic rattle of a stainless steel spoon scraping the bottom of a plastic soup tub.
A woman’s voice, dry and textured by years of breathing soldering flux and cold cellar air, broke through the horn.
“Pella? Are you by that speaking tube?”
Pella stepped to the brass arch, resting her hand on the cold curve of the metal casing. “I’m here, Ada.”
“Right,” Ada Morland said, followed by the muffled slurp of hot leek soup. “I’ve just pulled up behind the tool hire unit on the Harrowby ring road. It’s pouring stair-rods here. The wipers on the Transit are squeaking something awful. Have you cleared that damp coal cellar of yours, or are we going to be wading through standing bilge?”
“The floor is cleared to the solid mountain stone,” Pella said into the horn. She kept her voice steady and clear. “The drain is open to the salt mud. The room has an independent cross-draft through the river wall. But before you step through this door tomorrow, we need to agree on the work order.”
“Go on then,” Ada said. “Read it out. I’m not crossing any threshold without my wages and my tea break sorted. Ben says if I go disappearing into a brass door without an agreed contract, he’s reporting the van stolen to the West Yorkshire police.”
Pella turned to the slate board on the wall, tracing the grease pencil lines with her finger.
“Clause one: Voluntary crossing,” Pella read. “The arch will only open during your unpaid, voluntary lunch break. You can’t be summoned while on the clock for your council heating contracts. No one can force you through from either side.”
“Fair enough,” Ada replied over the link. “Twelve-fifteen to twelve-forty-five is my lawful forty-five minutes. My council employer can’t say a word about what I do on my own sandwich time.”
“Clause two: Duration,” Pella continued. “Twenty-four minutes of nonstop presence. Time runs identically on both sides. When twenty-four minutes pass in Lowbank, exactly twenty-four minutes pass in your van in Harrowby. The arch has a clockwork countdown clock mounted on the top door beam. When the clock hits zero, the door closes.”
“Twenty-four minutes is plenty to inspect a lead waste pipe and tap a collar,” Ada said. “That leaves me five minutes to pull up behind the warehouse, twenty-four on your side of the flat stone slabs, and sixteen minutes to finish my tea and wipe my boots before the two o’clock radiator call in Headingley. Next?”
“Clause three: The payload mass limit,” Pella said. “The bridge has a total carrying capacity of seven point zero pounds. Hand tools, clothing, and sustenance only. No combustibles, no liquid fuels, and no weapons.”
“Seven kilos,” Ada murmured, the clink of her spoon pausing. “A ten-inch Bahco adjustable wrench, a brass dial pressure gauge, PTFE tape, a clean brass drift, my check torch. A roll of cotton rags. That’s about five and a half kilos in my canvas tool roll. I’ll weigh the bag on the postal scales at the trade counter before I set off. What about the wage?”
“Clause four,” Pella said, lifting Hal Rook’s brass measuring tongs from the shelf. “One Silver Groat per check crossing. It’s paid into the arch’s clockwork locked deposit track the moment the door cycles open. If the job finishes safely, the silver coin releases into your tool bag. The coin is ninety-two percent raw river silver. Tamsin Drew at the antique arcade in Harrowby has agreed to assay the metal and deposit the sterling equivalent directly into your bank account.”
Through the horn, Ada let out a slow, approving whistle. “One silver coin. At current scrap silver prices, ninety-two percent purity on a standard trade coin comes out to roughly forty-five quid. For twenty-four minutes of test advice, that’s better than council overtime rates. What’s the abort clause?”
“Clause five,” Pella said, her knuckles tightening slightly against the brass frame. “Autonomous revocation. Consent is active at all times. If you feel dizzy, if water pressure spikes. Or if you simply want to leave, you speak the pullback command: Abort test. An independent return oval will form around your body within thirty seconds. It doesn’t depend on my arch, it doesn’t depend on academy magic, and nothing on this side can hold you against your will.”
There was a moment of quiet from the other side of the threshold, filled only by the rhythmic drumming of rain against the van roof.
“Thirty seconds,” Ada said at last. “That’s an honest safety margin. In commercial boiler work, we call that an independent blow-down valve. If a system doesn’t have an independent blow-down, you don’t light the burner. Put me down for twelve-fifteen tomorrow, Pella. Sharp on the lunch whistle.”
“Twelve-fifteen tomorrow,” Pella confirmed. “Thank you, Ada.”
“Don’t thank me yet, love. Wait until you see how bad that lead pipe is rusted through. Have a clean bucket and some dry rags ready. I don’t work in a puddle if I can help it.”
The sound sky-slit clicked shut with a small brass chime, the shaking draining from the metal horn until only the cold smell of copper green rust remained.
Pella turned to the brass arch. She picked up her quills and her dark oak-ink, dipping the nib into the dark, acidic fluid. On the small bronze ledger plate set into the right door post of the arch, she inscribed the agreed figures into the clockwork register.
As the ink touched the metal, the open rune-tracks along the top door beam flickered with a faint, cool pale-blue soft glow. There was a sound of tiny brass gears shifting within the casing. Tumblers dropping into place, balance springs catching their pawls. An internal counter registering the locked deposit of a single silver coin from the workshop’s iron lockbox.
On the slate board beside the arch, the white chalk and red grease pencil marks settled into sharp, unbending contrast against the dark stone:
Eren stepped back from the wall, his arms folded across his leather apron, his dark eyes scanning the neat lines of text.
“That’s forty-six letters across,” he noted, nodding toward the slate. “Every row matches the width of the stone top door beam.”
“It has to match,” Pella said, setting the quill into its heavy clay jar. “If the lines wander, the count wanders. If the count wanders, someone gets hurt. The college summoners think an arch is a cage for catching power. But this is just a workbench with a very long reach.”
She picked up the chipped mug, threw the cold tea grounds down the open floor drain. Then she rinsed the baked-clay under the trickling water of the kitchen bucket. Outside the high angled slats, the first evening bells began to toll across the terraces of Lathmere, calling the lightermen in from the river for their supper broth.