The skittering grew louder. Shapes resolved at the edge of Lumen’s glow. Small bodies, low to the ground, the size of large rats or small dogs. Their snouts were long and narrow, plated with dull gray mineral. Their incisors, when they opened their mouths, shone like chips of sharpened rock. Short, powerful legs ended in digging claws that scraped gouges into the floor as they came, beady eyes catching the light.

  Iron Gnawer – Lv. 7

  Another notification popped up as more poured forward.

  Iron Gnawer – Lv. 6

  Iron Gnawer – Lv. 9

  Iron Gnawer – Lv. 8

  A whole carpet of them, filling the tunnel, piling over each other in their eagerness to reach flesh.

  “Oh good,” James muttered. “Rats. But worse.”

  Rogan didn’t wait for further commentary. He planted his feet, spear braced, and roared, using his Heartcall skill. The sound hit the creatures like a physical blow; the first rank hesitated for a heartbeat, then surged again, only angrier.

  The frontmost gnawer leapt, mouth open. Rogan’s spear slammed into its throat, driving it down and into the packed bodies behind it. Kerrin thrust over his shoulder, his own spear vibrating with a faint, greedy hum as Verdant Blow flared along the haft. Greenish light pulsed, and when the spearhead struck another gnawer, the beast’s plated snout cracked like rotten stone.

  “Maude, watch the left!” James shouted as a few of the creatures started to scuttle along the wall, trying to go around Rogan’s reach.

  Maude's breathing was loud in the cramped tunnel, ragged and quick. She adjusted her grip on her stave, fingers slick with sweat, and swung clumsily at the first gnawer that lunged at her. The blow wasn’t pretty, but it connected with a solid crack, sending the creature tumbling back, dazed. It shook its head and started up again with a furious screech.

  “Again!” James barked. “Follow through, don’t just tap it!”

  She did. This time her stave hit with more conviction, snapping the beast’s neck. She stared at the limp body for half a heartbeat, eyes wide, chest heaving.

  Then another gnawer latched onto the hem of her trousers, claws scrabbling for purchase on her leg. She let out a sound that was definitely not dignified and brought the staff down in a flurry of panicked blows until it stopped moving.

  “All right,” she said under her breath, voice shaking but rising. “All right. I can do this. I can do this.”

  “You are doing it,” James said, trying to keep his own voice level. “Welcome to monster hunting. One terrible life choice at a time.”

  The tunnel dissolved into noise and motion. Rogan was a solid wall at the front, his spear thrusting in short, brutal jabs. Every time an Iron Gnawer tried to force its way past him, he smashed it back, taking shallow bites and scratches on his legs and arms rather than let one through. Kerrin moved in a tighter circle behind him, spear darting in where he saw openings, green mana flickering along his weapon whenever he had enough breath to invoke his abilities.

  Verdant Blow – Activated

  Nature’s Vein – Activated

  James could feel those little pulses of nature mana even through the heavy blanket of metal around them, like small breaths of fresh air in a stale room. Each time Kerrin’s spear glowed, the gnawers it struck bled darker, their wounds opening wider than they should have.

  Bren stayed to one side, half crouched, knives held between his fingers. His normally easygoing face was pinched, jaw tight, eyes sharp. He waited, watching for gnawers that slipped past the main line, then flicked his knives with quick, snapping motions that sent the blades spinning through the dim light. One buried in a gnawer’s eye, another took a beast in the side of the head, a third pinned a clawed paw to the stone.

  One particularly large gnawer managed to launch itself at Rogan’s shoulder, jaws aiming for his neck. Bren’s hand moved almost faster than James could see. A knife flashed, and the gnawer dropped, throat cut, scrabbling uselessly as it bled out.

  Rogan grunted, gave Bren a brief, sharp nod without taking his eyes off the swarm. “Good throw.”

  Bren’s mouth twitched like he didn’t quite believe the praise. “Figured you’d be annoyed if it chewed your head off.”

  “You figured right,” Rogan said.

  James focused on his own job. His heart hammered, adrenaline singing through his veins, but he had no excuse not to act. He dragged mana in, forcing it along the pathways his skills had worn into his mind.

  Mana condensed around his right hand, cool and slippery and all too eager to slip free. He shaped it, visualizing length, weight and balance. A short spear, he decided. Thrusting weapon, good in tight quarters.

  What he got was… almost a spear. A shimmering, translucent tube of bluish-white mana extended from his hand, more like a glorified glow-stick than a proper weapon. The tip flickered, threatening to unravel.

  “Close enough,” he muttered, and jabbed at a gnawer trying to spring at Maude's knees.

  The makeshift spear sank in with less resistance than he expected, punching through the creature’s chest and pinning it to the ground. The gnawer spasmed once and lay still, smoke drifting faintly from the wound.

  James blinked. “Okay. That works.”

  The spear flickered and dissolved, mana rushing back toward his core with a backlash that made him wince. His reserves dropped. He could feel fatigue nipping at the edges of his thoughts, but there was no time to complain.

  “Again,” Lumen urged near his ear. “You are learning. The shape was crude, but the intent was right. Again.”

  “I’m working on it, it’s difficult to concentrate with so much going on,” James grunted, trying to recapture that feeling when he was fighting the tree warden, already pulling more mana, shaping it faster this time, trying to keep the image in his mind steady. Spear, point, weight, shaft...

  This time the weapon formed with a bit more definition, the point sharper, the haft less wobbly, though the whole construct still shimmered like a heat mirage. He thrust again, stabbing a gnawer that had nearly made it past Rogan’s guard.

  The fight felt endless and very short at the same time. There was no time to think about anything except the next movement, the next lunge, the next breath. His arms ached. His legs burned from bracing against the floor. Maude's breathing grew hoarse, but she kept swinging, each strike a little less panicked and a little more deliberate.

  Gradually, the tide shifted. The pile of dead gnawers at the front of the line grew. The ones behind began to hesitate, squeaking uncertainly, their front ranks drowned in blood and broken bodies. When Kerrin’s spear flared green again and he skewered two at once, the rest finally broke. They scattered back into side cracks and burrows, vanishing into the darkness with furious chittering.

  The tunnel fell quiet but for the harsh breathing of six humans and the soft drip of gnawer blood onto stone.

  Maude leaned her forehead against her staff, shoulders shaking. James wasn’t sure if she was laughing or crying until he saw her wipe at her eyes and grin, wobbly and wild.

  “I’m… still alive,” she said.

  “Good news,” James replied, trying to sound breezy even though his own hands were trembling. “I prefer that in my villagers.”

  Irla moved past him like a pale shadow, hands already glowing with subdued life-mana as she knelt by Rogan, then Kerrin, then Maude, checking wounds, cleaning scratches, hissing under her breath when she found deeper bites. None of it was life-threatening, thank whatever passed for luck in this world, but there was a lot of blood and torn cloth.

  Bren crouched near one of the gnawer corpses, retrieving his knives. He wiped the blades on the dead creature’s hide with quick, efficient motions, eyes distant.

  “I got a notification,” Maude breathed suddenly. Her eyes unfocused for a moment, then widened. “I… I got a skill.”

  She swallowed, licking dry lips. “It says… Stoneskin Stance – Lv. 1. When I stand my ground, I… I can harden my body against blows. Minor increase to physical resistance when I do not move my feet.”

  James felt something warm uncurl in his chest. “That sounds very useful,” he said. “Especially if you insist on putting yourself between monsters and your friends.”

  Maude laughed weakly. “Felt more like I was glued to the floor.”

  “Same result,” Kerrin said, giving her a nod. “You did good.”

  Bren cleared his throat. “I, ah… got something too.”

  He looked almost embarrassed as he read it out. “Knife Handling – Lv. 1. It says my grip and release are more precise, and I have a slightly better chance to hit vital spots.”

  Rogan clapped him on the shoulder hard enough to make him rock forward. “About time the world noticed you’re dangerous.”

  James checked his own notifications. His Aether Armament window pulsed at the edge of his vision.

  Skill Level Up!

  Aether Armament is now Level 6.

  He let out a slow breath. “That’s something, at least.”

  Lumen bobbed close, clearly pleased. “Your control is improving. The shapes hold longer. If you survive the day, James Wright, you might even begin to look competent.”

  “High praise,” James said dryly, but he couldn’t help the small smile tugging at his lips.

  They regrouped, shook out limbs, wiped blood and sweat away as best they could, then pressed on.

  The further they went, the stranger the light became.

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  It wasn’t just darkness. Veins of dull metal ran along the walls, catching what little glow filtered back from Lumen and Irla’s faint aura. Copper flashed reddish-brown. Iron shimmered dully. Here and there, thin threads of something bluish pulsed faintly, almost too dim to see, but each time James’s Mana Resonance stirred in quiet recognition.

  He swallowed, cleared his throat, and kept his voice low. “Lumen. The mana feels… weird in here.”

  The familiar bobbed, its golden light dampened by the stone. “Thin,” it agreed. “Like water in dry sand. Not gone. Just… pulled into the bones of the earth. The metal drinks it.”

  James let his hand trail along the wall. The faint buzz of mana was there, but muted, swallowed by stone and ore. Above ground, around the Hearthroot and the glade, mana felt like a warm breeze brushing over his skin, always in motion. Down here it was something else. Heavy. Still. Waiting.

  “Good,” he murmured, more to himself than anyone else. “Wouldn’t want this to be easy or anything.”

  Maude’s voice came from just ahead, thin but steady. “Is… is it supposed to smell like this, Chieftain?”

  “Like we’re walking through a blacksmith’s armpit?” James said before he could stop himself. “Yes. Perfectly normal. Very traditional mining atmosphere.”

  It earned him a strained snort from Bren and a low chuckle from Kerrin. Even Rogan’s shoulders twitched.

  Irla’s fingers brushed his elbow briefly. “You are trying to make us relax,” she murmured, eyes on the darkness ahead.

  “Is it working?” he asked.

  “Not at all,” she said, but he could see a small smile tugging at the corner of her mouth.

  The tunnel widened as they walked, the ceiling arching higher overhead. The rough, claw-scraped walls slowly smoothed, hints of regular lines emerging beneath the grime. Iron-rich dust coated everything, giving the air a faint glitter when Lumen’s light moved. Old stones, cut and set with purpose, replaced raw earth in places. Pillarlike protrusions held up the roof, some cracked, some caved in.

  James ran his fingers over one such stone as they passed. Someone had carved faint lines into it. Strange, looping glyphs he couldn’t read traced spirals down its length, half eroded by time.

  “This wasn’t all made by the gnawers,” he murmured.

  “No,” Lumen agreed, floating up to inspect the markings. “People were here, long ago. They dug. They shaped. They brought mana down into the deep places.”

  “Why?” Maude asked quietly. Her voice echoed, smaller in the greater chamber.

  “Metal,” Bren said, glancing at the veins shimmering along the walls. “And whatever that blue stuff is. You could arm a whole army from this place.”

  James thought of the crude stone-tipped spears they still mostly used. Of the workshop blueprint sitting useless in his mind, waiting for iron. Of Varn, down here somewhere, desperate enough to dig alone.

  “Yeah,” he said softly. “You could.”

  Their steps carried them into a broader chamber where the roof arched high and shadows gathered in the upper corners. Stone pillars rose from floor to ceiling, some cut cleanly, others jagged where breaks had occurred. A faint, stale breeze stirred the dust, bringing with it a hint of age and something else, old ash, maybe, or burned oil.

  On one wall, half-hidden behind a tumble of fallen rocks, something caught his eye. He moved closer, brushing away grit. A mural had been carved into the stone, its lines faint but still discernible. Figures, stylized and angular, stood in poses of work and conflict. Some wielded tools against the walls, chipping at crystal-like formations. Others fought against shapes that were disturbingly familiar: hunched beasts with plated snouts. In the background, towering over them all, was the suggestion of a great tree whose roots plunged downward, branches curling upward like reaching hands.

  He stared at it longer than he meant to.

  The Hearthroot’s sapling form rose in his memory, its golden leaves shivering in the village’s breeze. The idea that such trees had existed in the deep places as well, influencing civilizations long gone, pressed against his thoughts like a thumb on a bruise.

  “Chieftain?” Maude asked, coming to stand beside him. “Do you… think they died here?”

  He exhaled slowly. “I think they lived here. For a while. That’s all anyone can ask for.”

  She was quiet for a moment, then said, “I never thought I’d see anything like this. Or fight like I did. I always thought I’d just… gather berries. Carry water. Try not to get eaten.”

  “Gatherers are important,” James said. “Drinking water is widely considered a luxury among living beings.”

  She laughed, a small, genuine sound. “I know. But… standing there, hitting those things, and not dying… and then the notification… it felt like the world was saying I could be something else too. Someone else.”

  He looked at her profile. Dirt streaked her cheeks. A scrape oozed sluggishly along her jaw. Her braid was coming undone. Yet she stood straighter than she had in the village, shoulders squared, eyes bright even in the dim.

  “You can be whatever you want,” he said quietly. “We’ll make room for that.”

  Bren wandered over, wiping his hands on his trousers. He glanced at the mural, then away, expression flickering. “Feels wrong,” he said. “Hunting things down here that don’t feed us.”

  James tilted his head. “You mean because we’re not going to eat the gnawers?”

  Bren wrinkled his nose. “Not unless you’re more desperate than you look. I just… I’m used to hunting because we need food. Going out alone, bringing something back so we don’t starve. This is… different. Fewer empty stomachs behind it. More teeth in front of it.”

  James frowned, hearing something in his tone he hadn’t before. “You went out alone a lot, didn’t you?”

  Bren shrugged one shoulder. “Someone had to. I was good at not getting seen. At least until the bear.” His mouth twisted wryly. “Now I’m down here chasing metal and monsters. With company. Feels strange. Good… but strange.”

  James touched his shoulder, briefly. “You don’t have to be alone anymore,” he said. “We are allowed to be alive and eat at the same time.”

  Bren huffed out a laugh. “That does sound like a nice change.”

  “Enough talking,” Rogan said from near the center of the chamber, though there was no heat in it. “We shouldn’t linger in open spaces.”

  He was right. They pressed on, moving through another archway and into a narrower corridor. The stone here was smoother, more deliberate. The metal veins thickened, some so dense they became bands of almost solid ore running along the walls. James’s Mana Resonance hummed more insistently, as if every inch of stone had something to say.

  They didn’t have to wait long for the next threat.

  The sound came first: a faint rustling above their heads, like paper crumpling. Then a whisper of air, a soft pat-pat of tiny impacts. James looked up.

  Dark shapes clung to the ceiling, flat and ragged, their wings folded. As Lumen’s light washed over them, dozens of eyes reflected back. Thin, shredded-looking wings spread, glinting with bits of embedded metal. Their bodies were about the size of housecats, with hooked feet and long, probing tongues.

  Rustwing – Lv. 10

  “That’s new,” James said. “Everyone, get ready!”

  They dropped as one, the flock of Rustwings diving with eerie coordination. Wings whispered, metal edges biting the air. The tunnel erupted into flapping wings and razor-edged gusts.

  Rogan lifted his spear, using the haft to bat aside the first wave, but the creatures didn’t try to bite him. Instead they raked across exposed skin with their shredded wings. Thin lines of blood appeared wherever they passed, stinging sharply.

  Kerrin swore, bringing his spear up to swat one away from his face. A wingtip sliced his cheek open. He stumbled, then planted his feet and gritted his teeth.

  “Verdant Blow!” he growled, driving mana into his spear.

  Green light flared along the shaft. When he swung this time, the air hummed. The Rustwing he hit didn’t just bounce away; its wing snapped, and the creature crashed to the ground where Bren promptly kicked it and stabbed it through the body.

  Maude flinched as two Rustwings swooped at her from different directions, their wings like bladed fans. She tried to duck, but the cramped space gave her little room. Cuts opened along her arms and neck. She yelped, stumbling backward.

  “Left!” James shouted.

  She twisted, bringing her staff up instinctively. It met one Rustwing in mid-flight, breaking its momentum. It hit the wall with a crunch, wings crumpling. The other swooped in, sharp wings slashing. Maude raised her arms to protect her face, teeth bared, ready to take the hit.

  Bren’s knife flashed past her ear, burying itself in the Rustwing’s head. The creature dropped like a stone, narrowly missing Maude’s shoulder.

  She blinked, panting, then shot him a shaky smile. “You keep doing that and I might start believing you can see the future.”

  “I just aim where trouble is,” Bren said, though his ears flushed red.

  James drew mana again, gritting his teeth as it resisted the hurried pull. He shaped a shield this time, picturing a broad, curved surface in front of him, something to ward off the diving creatures.

  The construct he formed flickered, but held: a translucent barrier anchored to his forearm. When a Rustwing dove at his head, its wings scraped against the mana surface with a sound like glass on stone, deflecting it just enough for James to swing his other arm. He forced the shield to flow, stretching it into a short blade along the edge, and slashed clumsily. The mana reacted sluggishly, but he still managed to slice the Rustwing’s belly open as it passed.

  “That’s it,” Lumen urged, voice bright with interest. “Form, then adapt. Do not cling to the first shape.”

  “Easy for you to say,” James muttered, trying not to think about how quickly his mana was draining.

  The corridor dissolved into chaos again. Rustwings dove and wheeled. Bren threw and retrieved knives in a tight, efficient rhythm. Kerrin’s spear left streaks of green light in the air as he channeled his abilities, each strike more controlled than the last. Maude's movements, while not graceful, began to flow more naturally: staff up to deflect, down to strike, side-step to avoid, plant feet, breathe.

  Two Rustwings broke away from the main flock and went for her, sensing an easier target. One came straight at her face, the other low, aiming for her legs. She blocked high, wood meeting metal-edged wings with a jarring crack. The low one slipped in. She started to move, too slow.

  James didn’t think. He let his half-formed shield collapse, redirected the mana in a rush, and imagined a knife in his hand: short, narrow, deadly.

  The weapon snapped into existence with gratifying clarity. It felt right. He hurled it at the Rustwing without aiming, trusting momentum and instinct.

  The mana knife sank into the creature’s body mid-flight, pinning it to the ground where it jittered and went still.

  The knife dissolved a heartbeat later, but James didn’t care. His Skill window chimed.

  Skill Level Up!

  Aether Armament is now Level 7.

  “Good,” Lumen murmured. “Better. You are beginning to understand that mana does not wish to be a thing. It wishes to be an action.”

  “Philosophy later,” James said between breaths. “Not dying now.”

  They pushed through the Rustwings, driving the battered flock back. The creatures seemed unused to such stubborn prey. After several more minutes of combat, the remaining few fluttered up into a crack in the ceiling and disappeared, leaving only a rain of dark dust and a handful of broken bodies behind.

  Maude sagged back against the wall, sliding down to sit for a moment. Her hands shook as she wiped blood from her forearms. “This is…” She searched for a word and then laughed weakly. “A lot.”

  Irla moved from person to person again, healing light glimmering softly around her fingers as she closed nastier cuts and soothed bruises. Her face was pale with strain, but there was a steadiness in her eyes now, a quiet confidence that hadn’t been there before her class had awakened.

  Maude's gaze unfocused as a new notification flashed in front of her. “Another one,” she said softly. “It says… Staff Flow – Lv. 1. My movements with a staff become more efficient, my swings waste less energy.”

  “Nice,” James said. “Soon you’ll be showing me how to do it.”

  Bren blinked, then glanced down at his own invisible notification. “Level nine,” he said, sounding slightly dazed. “And a new skill… Opportunist Strike – Lv. 1. Stronger attacks when an enemy is distracted or off-balance.”

  “That explains a lot,” Kerrin said with a crooked grin. “You’ve been stealing my kills.”

  “Just making sure they stay dead,” Bren replied.

  They rested a little longer, took a few swallows of water, then moved deeper.

  The tunnels shifted from raw stone to architecture and back again as they walked. Some sections were clearly ancient hallways, floors once smooth now cracked and buckled, walls bearing the ghost of decorative carvings. Others were newer, jagged tubes that cut through the older stone like burrows. The two kinds of passages intersected and overlapped in strange ways, creating a labyrinth that made James’s skin crawl.

  “Someone built all this,” he said quietly. “Then something else chewed through it later.”

  “Can we… not meet the thing that did the chewing?” Maude asked.

  “We’ll try,” James said. “No promises.”

  The deeper they went, the more James felt like they were walking through a dungeon out of a game. Only there was no minimap, no glowing loot, no promise that anything he killed would drop a health potion. Just sweat, fear, and the occasional chime of a level-up.

  In one chamber, they found more murals. This time the figures were shown not just digging, but fighting side by side against a mass of monstrous shapes. One of the stylized beasts looked unnervingly like an oversized Iron Gnawer. Another resembled a grotesque bat with jagged wings. Above them all, the same tree-like motif appeared again, its roots reaching down to touch the stone people’s heads as if blessing them.

  James’s Architect instincts hummed. The patterns, the layout, the way the tunnels connected… it felt designed. Intentional. Like the world itself wanted this place discovered again when the right people stumbled over it.

  “This place was meant to be found,” he thought, and the notion sat in his chest with a peculiar weight.

  They didn’t have long to be contemplative.

  The trembling started as a faint vibration underfoot, like distant thunder felt through stone. Dust drifted from the ceiling. Lumen’s light flickered.

  “Something’s moving,” Rogan said, tightening his grip on his spear.

  James’s Mana Resonance flared, sharp and insistent. Whatever was coming was many. Not huge, individually, but numerous and agitated.

  “Positions,” he said, voice steady despite the knot forming in his stomach. “Whatever it is, it’s big enough to rattle the floor. That means weight. That means trouble.”

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