Apple Monster stood at the base of the tree and looked up. Black lines crawled across the lowest branches now, thick as his thumb. Three weeks of waiting had brought him here — to the moment when hoping stopped working. The ants owned the trunk. They owned the roots. Now they owned the air. He had brought the red can this time. It sat on the stone bench where he'd spent every evening for three weeks, watching the darkness spread. The bench had been his grandfather's favorite place to rest after harvesting apples. Now it held poison instead of peace. Apple Monster picked up the can. His hand shook as he read the label. The tree's bark was so thick with ants he couldn't see wood anymore. Just movement. Just hunger. The spray would kill them. It might kill the tree too. He pressed the nozzle. White mist shot out and covered the lowest branch. Ants fell like rain. He kept spraying until the can sputtered empty, until his eyes burned, until he couldn't tell if he was saving the tree or watching it die. The choice was made. There was no more waiting.

The ants came back the next morning. Apple Monster saw them before he finished his coffee — fresh black lines crawling up from the roots where yesterday's spray had left them dead. He dropped the mug and ran to the tree. A woman stood waiting near the stone bench. She wore dirt-stained gloves and carried a clipboard. Behind her, past the fence line, a small wooden building sat at the edge of the field. She pointed to a thin black ribbon on the ground between them — ants, hundreds of them, marching in perfect formation toward his tree. "They're coming from that mound," she said. "About forty yards west. I've been tracking them since dawn. The spray you used yesterday killed the scouts, but the colony just sent more. They'll keep coming until you deal with the source." Apple Monster followed the trail with his eyes. It disappeared into the grass, a living highway he'd never noticed before. The mound sat visible now that she'd pointed it out — a dome of packed earth taller than his knee, riddled with holes, covered in movement. He felt something crack inside his chest. Killing ants on the tree wasn't enough. It had never been enough. He'd been fighting symptoms while the disease lived and breathed just forty yards away. The woman was still talking, explaining colonies and queens and underground tunnels, but he wasn't listening anymore. He was looking at the mound and understanding that saving the tree meant destroying something else entirely — something alive, something that wouldn't go quietly. He asked her what it would take to remove the mound. She didn't sugarcoat it. Poison that would seep into the soil. Digging that might damage the tree's root system if he miscalculated the distance. A fight that could take weeks and might still fail. Or he could do nothing and watch the ants strip the bark clean by summer's end. Apple Monster looked back at his grandfather's tree, then at the mound, then at the woman with her clipboard and her terrible honesty. For three weeks he'd done nothing. Yesterday he'd sprayed poison and felt like a hero. Today he learned he'd accomplished exactly nothing that mattered. He thanked her and walked toward the mound alone, his shadow stretching long across the ant trail, finally understanding what saving something actually cost.

Apple Monster woke to a sound like rain, but the sky was dry. He pulled on his boots and went out with the shovel he'd sharpened the night before. Forty yards from the tree, the mound had split. A crack ran down its side like a broken egg, and ants poured out in a black flood that spread across the grass. This was not one colony. It was too much movement, too many bodies, too many directions at once. He stopped at the edge of the spill. The trail he'd seen yesterday was gone, replaced by a moving carpet that reached almost to his tree's roots. He counted three separate columns branching off toward the fence, the shed, and something past the field he couldn't see. His shovel felt useless in his hand. You did not dig a hole against a tide. Something climbed up out of the crack that wasn't a worker. She was larger than the others, deep red, with wings folded flat against her back and a small gold band at each wrist. A pale stone caught the light on her forehead. She stepped onto a flat rock and looked at him the way a landlord looks at a tenant. He froze. He had not known ants could look at anything. "You're the one with the tree," she said. Her voice was soft and even. "I've watched your lights come on at night. My workers have counted your branches." Apple Monster's throat locked. He lifted the shovel an inch, then lowered it. "You're killing it," he said. "You've been killing it for three weeks." "No." She tilted her head. Bewilderment moved across her face and settled. "We don't eat apple bark. We don't eat leaves. My scouts have brought back nothing from your tree in three weeks. Not one grain of sugar." "Then why are you on it?" "We're not on it by choice. We're leaving." She lifted one leg toward the split in the mound behind her. "Something under the ground is pushing us up. The tunnels are hot. The lower chambers are gone. My daughters are carrying eggs across your roots because your roots are the only dry path north." He looked at the flood again. Now he saw it. The ants were not climbing the tree. They were going around it. Past it. Away from something worse. "North to where?" he asked. "Wherever the ground stops burning." She looked at him steadily. "You may dig us out if you like. You'll only speed what's already happening. And you'll be alone with whatever drove us up." Apple Monster lowered the shovel to the grass. His tree stood behind him, bark unbitten, leaves whole. He had been fighting the wrong war for three weeks. Somewhere under his feet, the real one was just starting.

Apple Monster stood with the shovel at his feet while the Queen Ant watched him from her flat rock. The flood of workers kept pouring around his tree, carrying eggs and pale grubs on their backs. He could see the ants. He could not see the fire under the ground. That was the whole problem. If the burn reached his tree's roots, the trunk would cook from below, and he would not know until the leaves went brown. "I need to see it," he said. "The fire. I have to know where it's going." The Queen tilted her head. "You can't. It's below the clay. Even my scouts only feel the heat when a wall gives." "Then your scouts know where it is." She was quiet a moment. "They know where it was an hour ago. That is not the same." He knelt by the split mound. Heat came off the crack like an open oven. He pulled his hand back and looked at the Queen. "Show me. Please. Send them out and mark where the ground is hot. I'll follow." She considered him with steady dark eyes. "My workers are carrying eggs. I can't spare many." "Spare a few. If the fire reaches the tree, it reaches whatever's north of it too. Your path north burns with my roots." Her antennae moved once. "That is true." She lifted a leg and tapped the rock twice. A dozen workers broke from the column and gathered at her feet. She spoke to them in a low click he could not follow. They scattered in six directions across the grass. Apple Monster ran to his shed for flour. He came back with the sack open and followed the first scout. Where she stopped and pressed her body flat to the dirt, he poured a small white circle. He did this for each one. Twenty minutes later he stood back and looked at his yard. The white circles made a shape. A long curved line, ten yards wide, running from the split mound straight under his tree and out past the fence toward the neighbor's field. The fire was not coming toward the tree. It was already beneath it. His knees gave. He sat in the grass. "How deep?" he said. "Six feet. Maybe five now." The Queen had followed him. Her voice stayed even. "The clay above it is thin. When it breaks, it breaks upward." "How long?" "A day. Perhaps two." He stared at the flour under his tree. The bark was still whole. The leaves were still green. Underneath, the ground was cooking his grandfather's roots, and he had one day to do something he did not yet know how to do. He stood up. The shovel was the wrong tool. He needed water, and a lot of it, and he needed someone who understood what was burning down there. He turned toward the road.

Apple Monster walked back from the road with an empty feeling in his chest. He had gone looking for a hose long enough to reach the far side of the yard. He had two. Neither would be enough to soak six feet of clay before the fire broke through. He stopped at the edge of the flour line and looked at the ants still streaming past his boots. He hated them yesterday. Today he needed them. The Queen watched him from her rock. She did not speak. She waited. "I can't dig fast enough," he said. "The ground's too hard. If I trench from above, I'll hit the fire before I hit the water table." "You want a break line," the Queen said. "A gap the fire cannot cross." "Yes. Between the burn and the roots. But I need it dug from below. Sideways. Under the tree." She was quiet. Her antennae moved once. "My workers dig sideways. That is what we do." He crouched so his eyes met hers. The words stuck in his throat. He had sprayed poison on her sisters two days ago. He had stood over her split mound with a shovel. "I'm asking," he said. "Will you dig a trench under my tree? A wet one. I'll pour water down from above as fast as you open the channel. It cuts the fire off from the roots." She tilted her head. "You are asking me to send workers toward the heat." "Yes." "To save your tree." "To save your path north too. If the tree burns, the fire has nothing to stop it above ground." She considered him a long moment. "That is true." She tapped the rock twice. A different sound this time, longer. The column around the trunk shifted. Hundreds of workers peeled off and gathered at the base of the tree in a dark ring. "Pour when I signal. Not before. If you flood us early, we drown." "I won't." He ran the hoses out and coupled them at the spigot. He stood by the tap with his hand on the valve and watched the ring of ants sink into the grass. The soil went soft under them. A thin dark seam opened along the root line, then another. The Queen lifted one leg from her rock. "Now." He turned the valve full open. Water rushed down the hose and into the seam. It vanished into the dirt. Steam hissed up from the far end near the fence. The ground gurgled. He kept the valve open until the seam ran clear and cool. The Queen climbed onto his boot. Her workers came up out of the wet soil in long wet lines, carrying their eggs. "It holds," she said. "For now." Apple Monster sat down in the mud. His tree was still green. The fire was still burning. But the roots had a wall between them and the heat, and he had not built it alone.