Veska Silmara knelt at the edge of the dark lake and knew his pole would break. He had come to catch the deep-forest fis, the one old fishers swore could feed a whole village for a lunar cycle. Its scales glowed like a scattered sky. But the fis lived below the Roseus Rex line, deeper than any channel Veska had ever worked. His frostbark pole was made for river prey. It would snap the moment the fis pulled. He lowered a weighted line anyway. It sank and kept sinking. The still water swallowed it without a ripple. Veska waited. The glowing fungi along the shore pulsed soft and slow. Then the line went tight and screamed off his reel. He grabbed the pole with both hands. The wood bent, cracked, and split down the middle. The line burned across his palm before it snapped. Below, something huge turned in the deep, and Veska saw one violet eye watching him. He sat back, breathing hard, his hands empty. The fis was real. His gear was not enough. "You lost it." Veska turned. Veyla Shadewhisper stood among the frostpine trunks, bow slung across her back, spear in one hand. She was a hunter, and hunters and fishers rarely shared water. She had tracked a limping Gloomstalker for half a cycle down the wrong trail. Now she stood at his lake, saying only what was true. "The pole broke," Veska said. "It was never going to hold." Veyla crossed to the split wood and picked up both halves. She turned them over once. "Frostbark. River tool." She dropped the pieces. "You need frostpine and claw." She reached behind her back and drew out a rod Veska had never seen. It was carved from pale frostpine, taller than the man, tipped with a lure of layered scales that shimmered even in the dark. Hooks curved from it like talons. The line was thick and heavy, wound tight. "My trainer made it," Veyla said. "For deep prey. He stopped teaching me two cycles back." She held it out. "I hunt on land. It's no use to me." Veska stared at it. "Why give it to me?" "You'll fish deeper than I'll ever walk." She pressed the rod into his hands. Her fingers had the pale scar-marks of old toxin work. "I need something from that lake. A die-off spread west. Your channels feed it. Whatever killed the fungi is coming for your water too." Veska took the rod. It was cold and solid, and it did not bend when he leaned his weight against it. For the first time the fis felt reachable. "Then we both want it dead or landed," he said. Veyla did not answer. She looked at the black water where the violet eye had been. "It watched you," she said. "It knows you now." Then she turned and walked into the trees, leaving Veska alone with the rod that could hold a legend.

Veska held the deep-water rod and knew it was only half a tool. The frostpine shaft would not break. The lure would not bend. But the line still worried him. It was thick, yes, thicker than his old frostbark thread. The fis had snapped his last line without slowing. A second strike would snap this one too. He needed something stronger, and he had a day at most before Veyla returned to ask what he had done for the dying water. He left the lake and searched the western edge, where the die-off crept toward his channels. Two grids in, he found the caps collapsed and gray. No spore dust. No smell. The kill was clean and fast, just as before. Then he saw what he did not expect. Strung between two towering mushrooms hung a web of silk, wide as a boat, glowing faint purple. The strands caught the low light and held it. Veska pulled one thread. It did not break. He pulled harder, wrapping it around his fist. The silk cut into his skin before it gave. Stronger than any line he owned. He reached for his blade to cut a length. The web trembled. From behind the far mushroom stepped its maker. The spider was larger than a Frostglider, armored in deep purple, its swollen belly marked with slow green light. Orange hairs bristled along its legs. It moved toward him without sound. Veska froze. His spear tip glowed with fresh toxin. He had one clean throw. The spider gathered its legs to spring. Veska threw. The point took it below the green markings and sank deep. The spider shuddered, curled, and dropped. Its legs folded slow, then stopped. He waited until it did not move. Then he cut long strands from the web and wound them tight around his palm. The silk held his full weight without a sound of strain. "You killed it." Veyla stood among the mushroom stalks, bow slung, spear in hand. She looked at the dead spider, then at the silk on Veska's fist. She said nothing about the die-off around them. "The web will hold the fis," Veska said. "My line won't. This will." Veyla crouched by the collapsed caps. She pressed one with a finger. It crumbled to nothing. "This spider didn't kill the fungi," she said. "Wrong pattern. Something else did." She stood. "You have your line now. Nothing to stop you." Veska looked at the silk, then west, where the gray spread further than he had walked before. He had solved the line. But the killer was still out there, closer to his water than yesterday, and now he had no excuse left to wait. "Then I fish tonight," he said. Veyla turned back into the trees. "Bind it well," she said. "You get one strike."

Veska bound the spider silk to the deep-water rod and returned to the lake at dusk. The water lay flat and black. He had fished these channels by day for cycles, but never at night. In daylight he read the line by sight. He watched the thread for the twitch that meant a strike. Now the dark swallowed the line whole. He cast the blade-lure into the deep and lost sight of it at once. If the fis took the bait, he would never see it in time. He had one strike, and no way to know when it came. He waited. The line hung slack in the dark. Twice something brushed the lure, and both times he pulled too late. He felt the tug only after it was gone. His hands could not do the work his eyes once did. A net splashed further along the shore. Veska turned. Velar Tidemark stood in the shallows, casting for silkfin, his old fishing pole leaning against a Frost Bark Tree. Veska knew him from the shared waters. Velar spoke little and missed nothing. "You cast blind," Velar said. He did not look up from his net. "I can't see the line strike," Veska said. "By the time I feel it, the fish is gone." Velar drew his net in slow. "Watch your bait, not your line." He nodded at the water near Veska's hooks. A cluster of glowflies drifted low over the surface. Their blue light pulsed steady. "They gather where the fish rise. When they scatter, something moved under them." Veska studied the glowflies. They hovered in a loose ring above his sunken lure. He had ignored them all his life. Now he watched them the way he once watched his thread. He crushed a glowfly against the rod's blade-scales. Its light smeared bright along the lure's edge. He cast again. The glowing lure sank, and he tracked it down through the black water by its own faint blue. He fixed his eyes on the glow. The glowflies above it drifted, calm, then broke apart all at once. The light beneath the water jerked sideways. Veska struck. He hauled back on the deep-water rod with all his weight. The silk line went taut and held. Something huge fought below. It pulled him two steps into the shallows. The frostpine shaft bent but did not break. The spider silk cut his palm and did not give. He fought it to the shore. A massive fish broke the surface, its armored scales lit like scattered stars. It thrashed once on the mud, then lay still. Not the legendary fis. But large, and real, and landed. Velar looked at it. "That one's been feeding wrong," he said. He pointed at its belly, streaked gray, the same gray as the dead caps west of the water. "The sickness is in the fish now."

Veska had her harpoon now, but the serpent hid in open deep water. There it could grab the line, dive, and drag her under before she ever set a hook. She needed to fight it on her terms, not its own. She needed a way to make it come to her. So she went to find Velar, who owed her a hand after all they had hauled off the ice. Velar had a flat-bottomed barge now, traded for moving a beekeeper's hives. He brought it to the edge of Veska's channel without a word of welcome. Veska climbed aboard. "I helped you land your leviathan," she said. "Now you help me." Velar coiled a rope and nodded. "Trout line," he said. "We run it across the dark water. Bait each leader. The serpent comes to the easy meal." Veska saw it at once. The line would hold the fish still. The serpent would feed where she could reach. They strung a long braided line across the channel. Small leaders branched from it, each tied with a curved hook. Veska baited every hook with silkfin, the best eating on the moon. Velar held the barge steady while she worked. When the last hook dropped, they waited. The water lay black and quiet under the twilight. The serpent wasted no time. Veska watched the first silkfin vanish in a silver flash. The metallic body slid below the line and bit beneath the hook, gutting the fish clean. It took the second the same way. Then the third. Each time it fed below the barb and left the hook empty. Veska gripped her harpoon. "It knows the hook," she said. "It won't bite high." "Wait," Velar said. He did not move. The fourth fish jerked. The serpent struck fast and struck high. The hook found its mark deep in the glass-toothed jaw. The line snapped tight and thrashed. The barge rocked hard. The serpent twisted, trying to dive, but the hook held it near the surface where the line pinned it. Veska did not wait for it to drag her under. She rose, braced her feet on the deck, and drove the five-pronged harpoon down through the azure spine. The bone head split the scales. The serpent shuddered once, then went still in the black water. Veska held the shaft until the last ripple faded. The beast was dead. The channel was hers. Velar hauled the long body across the deck. He pressed a thumb to the scales, reading the flesh. "Good kill," he said. Veska pulled the silkfin from the remaining hooks and reset the line. Nothing guarded the deep run now. The legendary fish was landed before the rise with the tide, and no serpent would gut them before her nets closed. She had cleared the water. All that remained was the tide, and the great amount of fish it carried.