Len lay on his side in the doorway, curled around his ruined arm like an animal caught in a deadfall.
His right hand was clamped around his left forearm above the puncture. But the blood was pumping between his fingers in thick, rhythmic surges that matched the wild hammering of his heart. The pain had moved past the first white-hot flash into a deep, sickening throb that seemed to vibrate his entire ribs. His breath came in shallow, ragged hitches, his throat burning with the sour taste of bile.
“Hold the pressure!” Doma barked, dropping the iron poker and falling to her knees in the blood-slicked ash.
Her broad hands seized Len’s wrist. Her thumbs pressed deep into the soft tissue near the elbow, hunting for the upper-arm artery. Her apron was soaked with red, her gray hair plastered to her forehead with sweat. But her voice was as cold and steady as an overseer’s ledger.
“Tavi! Get off the floor and bring the kettle from the backup hearth! I want the boiled willow water and the horsehair needle-point arrow! Ivara, bring the shears!”
From the dark undercroft, Tavi came running, his canvas slippers splashing through the puddles of broth. In his hands was an iron kettle wrapped in a stained rag, steam billowing from the spout. Behind him, Ivara walked with a steady, unrushed stride. She held her heavy tin shears in her sound right hand. Her canvas coat was singed at the collar, and her face was streaked with black copper soot. But her gray eyes were razor-sharp.
She knelt beside Len without a word.
With two swift, practiced snips of the shears, she cut away the bloody tatters of Len’s coat sleeve, peeling the wool away from the wound. Next went the gray linen undershirt. When the arm lay bare in the green lantern light, both women fell silent for two seconds.
The injury was total, but clean.
Two deep, jagged holes, each the width of a man’s thumb, gaped in the muscular ridge between the radius and forearm bone. The edges of the flesh were blackened and charred, not by heat, but by the acidic, rotting bite of the double’s man-made tissue. White tendon sheaths twitched in the bottom of the wound, bathed in dark blood. But the bone beneath was unbroken. The heavy forearm bone had taken the blunt force of the strike, bruised and gouged, but intact.
“The bone held,” Ivara said, her fingers touching the cool skin near Len’s thumb. “The radius is sound. No compound break. But the muscle belly is torn through, and the nerve has been concussed. Can you feel this, courier?”
She pinched the skin of his left index finger.
A faint, dull tingle registered in Len’s brain, like a foot that had fallen asleep in a cold boot. “Faint,” he wheezed through clenched teeth. “It feels... Distant.”
“The nerve is bruised, not cut,” Doma said. She pulled a corked glass vial from the pocket of her apron. It was one of the Survey Office phials of zinc carbolic spirit-extract Len had delivered forty minutes earlier. “If we don’t cauterize the rot out of those holes right now, the rotting melted rock waste from that thing’s claws will turn the flesh green before sunrise. He’ll lose the arm at the elbow.”
She reached out with her teeth, pulled the wax-sealed cork from the vial, and looked down at Len.
“Bite your collar, boy,” she muttered. “This is going to make you wish the double had taken your throat.”
Len didn’t argue. He grabbed the thick, padded wool of his coat lapel with his right hand, stuffed it into his mouth. Then he bit down until his back teeth ground together.
Doma tilted the vial.
She poured the clear, amber-tinged carbolic fluid directly into the open puncture wounds.
A scream tore through the wool in Len’s mouth. His entire body convulsed off the stone flags. His heels hammered against the floorboards as if an iron rod heated white-hot in a blacksmith’s forge had been driven through the center of his arm. The acid bit into the exposed muscle fibers, sizzling as it stopped the man-made slime, turning the bloody margins of the wound a pale, curdled white. Tears blinded his eyes. His lungs locked in total, choking burst.
“Hold him, Ivara!” Doma shouted, her knee pinning Len’s right thigh to the floor. Meanwhile, her left hand clamped his wrist flat against a clean wooden plank.
Ivara leaned her entire weight across his chest. Her pinned left sleeve pressed into his chest bone. Her single right hand held his shoulder immobile. “Breathe, courier,” she ordered into his ear, her voice relentless and rhythmic. “Use your Long Breath. Don’t fight the acid. Let the burn clean the tissue. Ten seconds. Nine. Eight.”
Len forced his lungs to expand. It was the hardest thing he had ever done—harder than running sixty miles through northern mud, harder than holding the falling bridge timber at Highwater Wash. He dragged the cold, smoky air into his chest, counting the agony down in his mind, until the blinding white fire settled into a dull, throbbing torment that left him shivering wildly on the floor.
Doma didn’t waste a second.
From an iron tin on the floor, she produced a curved razor-sharp needle-point arrow threaded with stout, black horsehair. With swift, merciless care, she drove the curved steel needle through the ragged margins of the torn muscle. She pulled the flesh together in tight, mattress-stitch loops.
One. Two. Three.
Each pass of the needle-point arrow made a soft, wet pop as it pierced the muscle tissue. Len lay with his forehead pressed against the cold limestone, his vision swimming with gray clouds. He listened to the rhythmic snip of Doma’s thread.
Four. Five. Six.
“Eight stitches,” Doma grunted, tying off the final knot with a vicious tug of her teeth. She smeared a thick layer of yellow sulfur animal fat across the seam, then took a roll of clean, boiled linen from Tavi’s basket. She wrapped the forearm tightly, winding the cloth from the knuckles to the elbow, immobilizing the wrist while leaving his thumb and fingers free.
“The bleeding has stopped,” Ivara reported, checking the bandage. “The pulse in the wrist blood vessel is steady. He will keep the arm.”
Len let the chewed wool fall from his mouth, his chest heaving as he drew in cold air. His left arm felt three times its normal size. A numb, throbbing log bound in tight linen, streaming a feverish heat that made his teeth chatter.
“It’s gone,” Len whispered, looking at the heap of gray dust on the threshold. “We killed it.”
Ivara looked at the ash. Then she turned her head toward the shuttered window that faced the vast, dark rail yard.
The kitchen had fallen into a heavy silence. It was broken only by the distant, rhythmic thumping of the river pumps two miles away. But as Len strained his ears, his baseline Road Sense detected something else through the stone foundations.
A faint, high-hum shaking was traveling through the iron rails of Track Three.
It was a rapid, metronomic rhythm: tap-glide, tap-glide, tap-glide. The sound of leather soles moving across broken limestone ballast at thirty miles an hour, without a single sound of heavy breathing, without a fraction of an inch of upright shifted weight.
The footsteps were circling the outside wall of the kitchen shed.
Ivara slowly stood up, wiping the soot from her shears with her apron.
“We didn’t kill it, Len,” she said quietly. “We only destroyed its vehicle. The claimant record at the central star tower is still open. It has already re-showed up through the rail overhead frame feeder.”
Outside the shuttered window, the zero-drag footsteps paused directly beneath the tin chimney pipe. The kitchen seemed to tilt on its axis. From the rafters above the chimney pipe, Tavi’s voice hissed down the stovepipe in a panicked, dry whisper: “It’s on the roof-tree! It’s crouching right by the iron collar! I can hear the nails on its soles scratching the zinc flashing!”
Doma picked up the iron poker from the blood-stained ash. Even so, her shoulders trembled from the strain of her cracked ribs. “It can’t force the chimney, boy. The chimney pipe is wrapped in grounded copper mesh from the hearth to the ridge-cap. If it touches the screen, it grounds the charge into the boiler jacket.”
“It’s not trying to force it,” Ivara said. Her single hand held the oil lantern close to Len’s bandaged arm to check for any fresh blood seep. “It’s taking sound bearings. It knows Len is inside. It heard him scream when the carbolic bit the tissue. It knows his left arm is locked still, which means his defensive radius has been cut by half.”
Len forced himself to sit upright. His back leaned against the rough limestone stonework of the pantry doorframe. The world spun in sickening gray circles. But his Long Breath baseline helped him push past the waves of nausea. He looked down at the ruined left sleeve of his coat. The wool was soaked in blood and harsh cleaning acid, the fabric shredded beyond repair. He reached down with his sound right hand. He unbuckled his leather delivery satchel and set it carefully on his lap.
“My route book,” Len murmured, his voice hoarse from screaming. “Is the route book safe?”
Ivara reached into the satchel, her thumb sliding over the brass lock-hasp. “The canvas kept it dry. The seals are intact. But your uniform is gone, courier. You can’t walk through the Gate Ward checkpoint wearing half a coat and eight horsehair stitches without every court guard on the line knowing you survived an emergence.”
“I don’t need a uniform to walk,” Len said. He tested his fingers against the linen wrap. The thumb and index finger moved, though the effort sent sharp, fiery needles streaming into his elbow. “I only need the book.”
Outside, above the zinc ridge-cap, the scratching ceased. A moment later, the metronomic tapping of leather on ballast resumed. It faded slowly into the freezing dark as the double moved west toward the main rail interchange.