Elliro Fernspire laid the unfinished firearm on the workbench and knew, for the third night in a row, that it was worthless. The barrel was clean. The trigger sat perfect against the guard. But the chamber was empty of the one thing that mattered — a core that no other smith in Chorastine could match. Without it, this would be another gun. Elliro built guns from bone, from riverglass, from the hollow reeds of dying trees, because a weapon should cost the world something to make. A legend could not be forged from parts anyone could buy. So Elliro shouldered a satchel and walked the swamp path to the workshop tucked into the mossy boulders at the edge of the wetlands. Smoke leaked from its chimney at an ugly angle. Inside, Raduk Steelclaw stood over a half-built engine, one claw pinning a coil, the other soldering. He did not look up. "You're bleeding on my floor," he said. Elliro glanced down at a shallow cut from the reeds. "I need a material," Elliro said. "Something alive. Something no one else has pulled from this swamp." Raduk snorted and set the iron down. "Everyone wants alive until alive bites them." He walked to a shelf and pulled down a jar. Inside, wrapped in damp cloth, sat a nugget of warm amber. A shape moved inside it — small, curled, breathing in slow pulses of light. "Living amber," Raduk said. "Grows in the throat of a flower that eats what it lures. I've seen two in my life. You want one, you go get it. I'm not dying for your gun." Elliro asked where. Raduk drew a rough map on the back of a scrap tin: a bend in the black water where a pale bloom grew taller than a man, its petals white and gold, its vines lined with hooked thorns. "It sings," Raduk said. "Don't listen. Cut low, reach fast, pull the nugget from under the tongue. The flower will close. If your arm's still inside, that's your problem." He pushed a short curved knife across the bench. "Bring me back a petal and we're even." Elliro found the bloom at dusk. It sang the way Raduk warned, a low hum that pulled at the ribs. Elliro cut the base of the stem, drove one hand into the wet throat, and closed fingers around something warm and pulsing. The petals slammed shut on the wrist. Elliro twisted, tore free, and fell backward into the mud with the living amber clenched tight and a long red line opening from elbow to knuckle. The nugget beat against Elliro's palm like a second heart. The gun had its core now. And something in the swamp, somewhere behind the reeds, had begun to answer the flower's dying song.

Elliro walked back to the workshop with the amber nugget wrapped in wet cloth against a bleeding arm. The core pulsed against the skin like a small trapped animal. By morning, Elliro had laid it on the bench beside the unfinished firearm and lit the forge. The first test told the truth fast. The steel needed to cradle the amber softened long before the amber itself warmed. Every metal Elliro tried either melted too soon or cracked the resin when it cooled. The forge could not run hot enough, and no crucible in the shop could hold the heat without warping. Without a hotter fire and a sleeve that resisted the amber's own pushback, the core would split the moment it was set. Elliro packed the nugget in damp moss and walked to the only smith in the swamp who owned a bigger flame. The mossy stone workshop sat under a hood of ivy, chimney breathing clean white smoke. Inside, Gozen Watanabe was hammering a folded blade, red skin slick, tusks catching the lamp light. He looked up and grinned before Elliro had finished the doorway. "You bring me a problem or a drink?" he said. Elliro set the nugget on the anvil and unwrapped it. Gozen's grin dropped. He bent close, then pulled back fast, waving a hand as if scalded. "That thing's fighting the air already. You want to bond it to steel?" "I need your forge," Elliro said. "And I need a sleeve that won't warp when the amber pushes back." Gozen laughed once, loud. "My forge, yes. Steel, no. You wrap that in plain steel and it'll spit the core across the room." He rummaged in a bin and slapped a dull grey ingot onto the bench. "Sky-iron. Fell in the marsh two winters back. Drinks heat and doesn't argue with living things. I was saving it for a bell." He named a price. Elliro named half. They met in the middle, and Gozen was already stoking the bellows before the coin hit the wood. The forge roared white. Gozen worked the bellows while Elliro shaped the sky-iron into a thin sleeve and slid the amber inside. The core flared, pushed, then settled as the metal took the heat without buckling. Elliro quenched the piece in oil and lifted it clear. The sleeve held. The amber pulsed steady inside, married to the metal at last. Elliro fit the core into the chamber of the unfinished firearm and felt the frame accept it with a small, living click. Gozen clapped a hand on Elliro's shoulder and left a red print. "Now you owe me a bell," he said. Elliro nodded, already noticing the barrel. Where the sky-iron sleeve met the old steel, a faint hairline had opened. The bond had held the core. The gun around it had not been built for what the core wanted to do next.