The washroom was quiet except for the slow, clockwork tick-tick-tick of the brass gear catch counting down the twenty-four minutes above the top door beam. Outside in the main kitchen, the muffled sound of morning trade continued—the scrape of benches, the clatter of iron spoons against heavy clay bowls, and the steady, humid murmur of eighty lightermen and draymen eating their shift rations.
Pella Rook stood up straight, squaring her shoulders within her patched apprentice tunic. For five years at the College of Summoners, the protocol of formal entity reception had been drilled into her skull with slate pencils and birch rods. A summoner didn’t merely speak to an entity. A summoner announcedthe entity’s lineage, established academy precedence. Then he recited the liturgical titles that fixed the hierarchy between mortal caller and otherworldly force.
Pella took a formal half-pace forward, her heels clicking on the leveled granite flags.
“Eren Tal, Journeyman Wheelwright,” Pella began. Her voice carried the rigid, liturgical rhythm of the High Terraces. “Sister Merrow, Warden of the Slipway Kitchen. Permit me to introduce the traveler who has answered our non-compulsory call. Presenting Master Ada of the Flowing Metal, Sovereign Overseer of the Western Pipes, Mistress of the Hidden Pressure—”
Ada Morland, who had been unbuckling the top strap of her canvas tool roll, stopped dead.
She turned slowly on the heels of her steel-toed work boots, her mouth slightly open. She stared at Pella with an expression of deep, plain disbelief. She looked down at her grease-darkened navy boiler suit, flicked a bit of dry pipe lime from her bright yellow shoulder stripe. Then she looked back at Pella.
“Stop right there, love,” Ada said. Her dry West Yorkshire rasp cut through the humid stone room like a cold blast of moorland air. “Just put the brass trumpet away and step back before you hurt yourself.”
Pella blinked, caught mid-sentence, Hal Rook’s brass measuring tongs still raised in her right hand. “I... I was establishing the formal precedence of your trade, Master Ada.”
“Master Ada?” Ada shook her head, letting out a short, breathy scoff through her teeth. “Sovereign Overseer of the Western Pipes? Have you lost your mind? I’m a heating and drainage plumber from Harrowby. I work out of the back of a beaten-up Ford Transit van. I spend my Monday mornings unblocking hair and mutton fat from council estate waste pipes. My Thursday afternoons arguing with the housing department over three-pound brass ball valves. You call me Ada. Or I’m packing my Bahco wrench back in this canvas bag, stepping through that hoop, and finishing my Cheddar sandwich in peace.”
Eren Tal stood beside the tool bench. For three seconds, his broad face remained fully still, his dark eyes shifting between Ada’s blunt, weather-beaten features and Pella’s red-cheeked apprentice confusion.
Then Eren let out a low, dry rumble of a breath that ended in a sharp, quiet snort of pure tradesman relief.
“Pella,” Eren said. He shook his head slowly as he picked up a chipped clay pot mug from the wooden shelf. “Your college spent four years teaching you how to use forty words where four would do the job. Listen to her. She speaks like someone who actually owns an iron chisel.”
He walked across the chalk boundary line, carrying the mug with two hands. Steam rose from the dark, cloudy liquid. It carried the astringent perfume of roasted chicory root, dried blackberry leaf, and boiled well water.
“Drink this, Ada,” Eren said, holding out the mug by its rough baked-clay handle. “Sister Merrow boiled it on the back hob. It’s bitter enough to strip the animal fat off a cart axle. But it’s piping hot, and there’s no magic in it.”
Ada took the mug.
Her right hand met Eren’s left as their fingers brushed against the warm clay. In that brief contact, two working people took the measure of each other’s labor without speaking a single word of explanation.
Ada felt the thick, ridged pads of Eren’s fingers. The heavy, uneven calluses built from years of guiding sharp drawknives along green ash timber, the scarred thumb-knuckle where a spoke-shave had slipped. The faint, permanent blue specks under his skin where iron filings from his father’s anvil had worked into the deep skin decades ago.
Eren felt Ada’s hand in return. The broad, flattened thumb with its hardened, horn-like nail, the deep yellow calluses at the base of the fingers formed by the constant torque of heavy pipe wrenches. The faint, pale white puckers of old solder burns along the back of her wrist where drops of molten lead-free alloy had spat from a copper tee-joint.
They were working hands. They were hands that knew the difference between six pounds of torque and seven, hands that knew the smell of wet mortar and cold steel, hands that had never worn silk gloves or signed an execution order.
Ada brought the mug to her lips and took a cautious, steady sip.
The hot liquid tasted harsh, earthy, and slightly burnt, with the lingering stone tang of river silt that never quite left the Lowbank water supply. But it was scorching hot. It cleared the damp chill of the crossing from the back of her throat.
“Aye,” Ada said, lowering the mug with a faint nod of test. “Tastes like burnt parsnips and wet brickwork. But it’s boiling, and it’s honest. That’ll do fine.”
Before Pella could reply, the heavy oak door leading to the main back kitchen swung open with a harsh, grating screech of ungreased iron hinges.
Sister Merrow stood in the doorway.
The retired field surgeon filled the narrow opening. He leaned heavily on her ash-wood walking cane, her mobcap slightly askew over her iron-gray hair. In her right hand she still held her four-quart cast-iron soup ladle, its rim dripping a slow, greasy drop of yellow pea broth onto the threshold stone. Her aprons were stained with mutton grease and wood ash. Her pale blue eyes swept the washroom with the cold, lethal check she had used on battlefield casualty tents.
She looked at the brass arch. She looked at the forty-six-character work docket on the slate wall. She looked at the open tool roll on the bench, and finally her gaze settled on Ada Morland standing in the center of the flat stone slabs in her navy boiler suit.
The two women stared at each other across eight feet of damp, cold air.
Merrow didn’t bow. She didn’t lower her ladle. Her jaw was set like a granite foundation block.
“So that’s what came out of the scrap metal,” Merrow said, her voice gravelly and fully unsoftened by polite society. “You look like a trench navvy who wandered away from the railway works without her wheelbarrow.”
Ada didn’t blink. She held her clay pot mug in one hand, rested her other hand casually on her hip, and looked Merrow up and down. Taking in the locked left knee, the scarred knuckles, and the battle-worn cast-iron ladle.
“And you look like a triage sister who hasn’t had five hours of uninterrupted sleep since the summer before last,” Ada shot back, her tone level and fully unimpressed. “Lower that ladle, love. If you drip that pea broth onto my clean nitrile work boots, I’ll charge you three bob for leather dressing.”
For two heartbeats, the washroom hung in complete suspense. Eren took half a step backward toward his timber bench, his hand drifting toward his mallet.
Then Sister Merrow’s chest heaved. A sharp, dry bark of laughter cracked from her throat. A short, gritty sound like two dry slate tiles being struck together.
“Gods above,” Merrow muttered. She lowered the ladle and resting its iron bowl against the cedar doorframe. “At least she’s not a scholar. An academy scholar from the High Terraces would have spent three hours explaining the sky symmetry of water while the cellar filled to our armpits with sewage.”
Merrow turned her sharp blue eyes toward Pella. “She stays behind the red line, Pella. And if she breaks that waste line, Eren clears the mess before the dinner bells ring.”
“She won’t break it, Sister,” Pella said.
“See that she doesn’t,” Merrow grunted. She turned her broad back on them and limping back toward her bubbling cooking pots. She pulled the heavy oak door shut behind her with a dull, solid thud.
Ada took another sip of the bitter tea, set the mug down on the cedar bench. Then she rolled her navy drill-cotton sleeves past her elbows.
“Right,” Ada said, turning her attention to the north wall of the washroom. “The comedy’s over. What are we looking at?”
Pella walked to the wall. She lifted the animal fat lamp to light up the level run of plumbing that drained the back kitchen troughs.
The pipe was a four-inch lead waste line, gray and heavily rusted with powdery white lead carbonate. It ran four feet along the wet stonework before disappearing into a crude chisel-cut sleeve through the four-foot granite foundation wall toward the river mudflats. Where two sections of lead met in an ancient wiped solder joint, the metal had swollen into an ugly, bulbous gout. A distorted blister of soft metal that had swelled under heat and pressure until the lead wall was paper-thin.
A slow, rhythmic drip of greasy dishwater was weeping from the lower seam of the solder wipe, sizzling as it struck the hot coals of an iron fire bowl Eren had set beneath the line.
Above their heads, the clockwork countdown clock on the brass arch gave a sharp, metal clink.
The brass indicator dropped: 18m 10s... 18m 09s...
Ada leaned in close, keeping her boots outside the drainage trench. She didn’t touch the lead with bare skin. She reached into her tool roll, drew out the nine-inch solid brass drift. Then she gently tapped the swollen bulb of the joint with the square brass head.
Thunk. Clack. Thunk.
She listened to the sound return with her head tilted, her ear six inches from the lead wall.
“Right,” Ada said, her test voice taking over, brisk and entirely skilled. “You’ve got three distinct failures here, and none of them have anything to do with magic.”
Eren pulled out his ash shingle and a piece of chalk, leaning forward. “Go on.”
“First: heat fatigue,” Ada said. She pointed the brass drift at the swollen belly of the pipe. “This lead line was sized for cold laundry rinse. Merrow is dumping sixty gallons of boiling mutton broth and washing soda down the sink three times a day. Lead expands when it gets hot. It doesn’t spring back when it cools. Every time she drains a cooking pot, the pipe stretches a fraction of a tiny fraction of an inch. That’s why you’ve got this bulbous belly here—the lead has heat-softened itself soft and blown out like a bicycle inner tube.”
Pella nodded, recording the words in her notebook with dark oak-ink. “And the leak at the seam?”
“That’s your second problem,” Ada said, tapping the solder collar. “Whoever wiped this joint seventy years ago used an alloy with too much antimony in it. It’s brittle as a dried biscuit. When the lead pipe swelled, the solder collar couldn’t stretch with it. It cracked along the bottom radius. The only reason it isn’t spraying a full jet is that the opening is plugged with clotted lard and old sourdough crust crumbs.”
“And the third?” Eren asked.
Ada pointed toward the granite foundation sleeve where the pipe vanished into the river darkness.
“Listen,” she said.
They stood silent. Through the lead casing, traveling up from the river outfall, came a deep, rhythmic high-pressure pulse—a low, hollow thump... Thump... Thump that shook the lead pipe every four seconds.
“That’s backing-up pressure from the river,” Ada said. She drew a yellow grease pencil from her pocket and marking two bold lines across the lead pipe where the metal was sound. “The tide is coming in. The river is pushing back up your drain outfall, trapping an air pocket behind this joint. Every time the river waves hit the outfall, the air ram hammers against this cracked solder seam.”
She looked at Eren, then at Pella.
“Eighteen minutes left on my lunch break,” Ada said, picking up her ten-inch Bahco wrench from the bench and checking the jaw opening. “We’re not going to replace this whole run today. But we can shore it up so Sister Merrow doesn’t end up knee-deep in grease. Eren, fetch me two dry oak wedges and a clean wire brush. Pella, hold that animal fat lamp right where I can see the bottom of this collar. Let’s see if we can teach this river pipe how to behave.”