Chapter 3: Rat King Tutorial

The first scream came from somewhere beyond the smashed ticket turnstiles.

It was short, wet, and unfinished.

Mara Venn froze with one hand wrapped around the cracked dagger’s handle and the other buried wrist-deep in a heap of subway trash that had no business existing in a place that had stopped being a subway station sometime between her death and her second migraine.

The sound bounced through the tunnel, stretched thin by damp concrete and old steel. A man shouted after it. A woman sobbed. Something answered them with a chittering chorus that seemed to crawl along the bones of the platform.

Mara swallowed.

“Okay,” she said to the dark. “So the rats are not metaphorical.”

The dagger in her hand was still whispering.

Cracked Starter Dagger
Quality: Pathetic
Durability: 3/10
Trait: Edge Memory (Dormant)
I remember being sharp.

She had read that last line four times, hoping it would become less alarming with repetition. It had not. Broken things, apparently, had opinions now. The knife’s opinion was that it had once been better, which made two of them.

The station around her had become a corpse wearing the city’s face. Faded safety posters curled away from tiled pillars. Ads for meal kits and bail bonds had been scratched over by glowing symbols like someone had taught graffiti how to breathe. The track pit below the platform steamed with pale blue mist, and the third rail pulsed faintly, not with electricity but with a slow heartbeat of dungeon-light.

Mara crouched behind a toppled vending machine, one sneaker planted in a puddle of spilled cola that smelled wrong—too sweet, too old, with an iron tang underneath. The machine had split open during the collapse or the System’s redecorating spree. Its guts spilled across the floor: coils of wire, snapped plastic trays, dented cans, shattered plexiglass.

To anyone else, it was garbage.

To Mara, every piece of it hummed.

Discarded Copper Wire
Quality: Poor
Durability: 2/5
Potential Use: Binding, Conductive Trap, Improvised Garrote
Tension makes me useful.

Cracked Plexiglass Shard
Quality: Trash
Durability: 1/4
Potential Use: Cutting Edge, Reflective Lure, Splinter Mine
Break me smaller. Make them regret stepping.

Dented Seltzer Can
Quality: Trash
Durability: 1/3
Potential Use: Noise Lure, Pressure Trigger
Kick me and everyone listens.

“You all need therapy,” Mara muttered.

The station lights flickered once. Then the System arrived with the smug timing of a landlord posting an eviction notice.

TUTORIAL EVENT INITIATED

Objective: Survive the Ironfang Swarm.

Bonus Objective: Defeat the Swarm Alpha.

Participants Remaining: 19

Failure Penalty: Death.

Recommended Strategy: Group coordination, defensive formation, controlled retreat.

Mara stared at the message until the glowing letters burned across her vision.

“Controlled retreat to where? Track hell? Murder mist? The Starbucks that got eaten?”

No answer.

Another shriek tore through the platform, this one closer. A shape skittered past the far stairs—a low blur with too many legs moving too fast. It paused under a stuttering fluorescent tube, and Mara saw it clearly for half a second.

Rat was technically the word.

It had the basic silhouette: wedge head, twitching whiskers, naked tail dragging behind it like a length of diseased rope. But it was the size of a pit bull, its shoulders armored in black bristles stiff as nails. Iron-colored tusks jutted from its upper jaw, curved down past a mouth crowded with needle teeth. Its eyes were not red but white, blank as tiny moons.

The creature sniffed.

Then its head snapped toward Mara.

“Nope.”

She flung the dented seltzer can down the platform as hard as she could.

It bounced against a pillar with a bright metallic clang-clang-clang and rolled into the shadows near a broken escalator. The rat’s ears jerked. Its whole body followed, claws clicking wildly as it sprinted after the sound.

Mara did not wait to congratulate herself. She grabbed wire, plexiglass, two cracked ceramic floor tiles, a fist-sized chunk of concrete, and a handful of vending machine springs. Her inventory window flickered open when she thought the word, a translucent grid hanging in the air beside her.

Inventory
Cracked Starter Dagger x1
Discarded Copper Wire x3
Cracked Plexiglass Shard x5
Vending Machine Spring x4
Ceramic Tile Fragment x2
Concrete Chunk x1
Mystery Lint x1

“I swear to God, if Mystery Lint is my legendary crafting material…”

A man stumbled around the corner near the turnstiles, clutching a baseball bat like he had seen it in a movie and hoped muscle memory could be downloaded. He was broad, bearded, maybe forty, wearing a CTA maintenance vest torn across one shoulder. Blood soaked one pant leg.

Behind him came a girl in an office blouse and one sock, dragging an older woman by the arm. The older woman’s glasses hung crooked, one lens missing. Both had the glassy, concussed look of people whose entire world had been replaced by a tutorial screen and teeth.

“This way!” the man barked.

“Not this way,” Mara snapped.

He saw her crouched behind the vending machine and scowled. “You got a weapon?”

Mara raised her cracked dagger.

The man’s scowl deepened. “That a joke?”

“Yes, and the punchline is survival.”

Something crashed behind them. The girl screamed. Three Ironfang rats spilled over the turnstiles, bodies flowing like dirty water. One had a strip of blue fabric caught between its teeth. Another dragged a length of intestine that might not have been its own.

The maintenance man cursed and stepped forward with the bat.

“Don’t,” Mara said.

He swung anyway.

The bat connected with the first rat’s skull with a meaty crack. The creature staggered, shook itself, and lunged. Its tusks punched into his thigh just above the knee. He bellowed and hammered the bat down again and again, panic turning his blows wild. The second rat went for his ankle. The third darted around him, straight toward the girl and old woman.

Mara moved.

Not bravely. Not gracefully. She moved because every delivery shift in winter traffic had taught her that hesitation got you hit, stiffed, or dead. She snatched one of the vending machine springs, hooked it around a jutting bolt on the toppled machine, and yanked a strand of copper wire through it with fingers that shook so badly she nearly garroted herself.

The rat leapt.

Mara let go.

The spring snapped back with a metallic shriek, dragging the wire taut across the creature’s path. The Ironfang hit it chest-first. For one glorious second, physics remembered it was on Mara’s side. The rat flipped forward, slammed face-first into the tile, and skidded.

Mara brought the concrete chunk down on its skull.

Once.

Twice.

The third time, something gave with a crunch like stepping on frozen leaves.

Ironfang Rat defeated.
EXP gained: 12
Loot available.

Mara stared at the dead thing under the concrete, panting.

“Loot available?” she wheezed. “From the rat I just brained with sidewalk?”

A small glow pulsed inside the corpse. Her stomach tried to climb out of her throat. She had delivered dumplings to frat houses at 2 a.m. She had seen things in alleys that technically counted as biological warfare. None of that prepared her for reaching into a magical rat carcass because a floating window implied there might be prizes.

She did it anyway.

Her fingers sank into coarse fur and warm blood. The glow popped against her palm.

Loot Acquired:
Ironfang Rat Tooth x2
Torn Hide Strip x1

Ironfang Rat Tooth
Quality: Common
Durability: 4/4
Potential Use: Arrowhead, Trap Spike, Serrated Edge
Still hungry.

“That’s disgusting and useful,” Mara said. “My brand.”

The maintenance man killed one rat with a final overhead blow that splintered his bat. The other rat clung to his calf, chewing. The office girl grabbed a fallen metal signpost and stabbed downward with both hands, sobbing with every thrust until the creature went limp.

For a moment, there was only breathing.

Then the old woman whispered, “Participants remaining changed.”

Mara looked up.

Participants Remaining: 16

No names. No obituaries. Just a number shrinking in the air.

The maintenance man leaned against a pillar, pale under his beard. “Anybody else get a class? I got Guard. It gave me a bat. Bat broke.”

“Office Assistant,” said the girl, then laughed once, too high. “Sorry. Sorry, no. It says Analyst. I can see weak points sometimes. Mostly it just tells me I’m in danger, which feels redundant.”

The old woman straightened her broken glasses with dignity. “Greenhand. It suggested gardening implements. I have arthritis.”

“Scavenger,” Mara said.

The maintenance man looked at the trash around her, the wire in her hands, the rat blood on her sleeve. “That why you’re playing raccoon back there?”

“Yes. And unless your next bat grows on trees, you’re welcome.”

He opened his mouth. Closed it. Nodded once. “Name’s Carl.”

“Mara.”

“Jessa,” said the office girl, voice still trembling.

“Dr. Anika Rao,” said the old woman. “Retired. Not dead yet.”

“Working on keeping it that way,” Mara said. “How many did you see?”

Jessa wiped her nose with the heel of her hand, leaving a streak of blood that was not hers. “A lot. They came out of the bathrooms. The walls opened. I don’t know. There was a big one.”

Carl’s face tightened. “Big how?”

Jessa’s eyes flicked toward the dark tunnel mouth. “Like a couch with teeth.”

From far down the platform came a chittering roar.

The sound was too deep for any rat. It rolled through the tiled station and made dust sift from the ceiling. The smaller skittering sounds answered it by the dozens.

Swarm Cohesion increasing.
Swarm Alpha has scented blood.

Mara felt the System message in her molars.

“Right,” she said. “We are not fighting a couch.”

Carl dragged the ruined bat up. Half of it remained. “We can hold the stairs. Funnel them.”

“To what? Your decorative stick?”

“You got better?”

Mara looked at the platform. The vending machine. The broken escalator. The exposed wiring hanging from the ceiling. The maintenance closet with its door bent inward. The ankle-deep mist in the track pit. The turnstiles. The advertisement frames with their cracked glass. The old station map dangling by one screw.

Broken things murmured all around her, a chorus of damage.

Pull me tight.

Stack me high.

Sharp side up.

Make them run where you want.

Mara’s fear did not vanish. It sharpened. It became a narrow, ugly tool.

“Yeah,” she said. “I’ve got better. But I need hands.”

Carl stared. “You have a plan?”

“I have garbage and spite. Historically, that’s been enough.”

The next three minutes became a blur of frantic construction.

Mara found that her class did not give her blueprints. It gave her instincts with teeth. When she touched a thing, she understood its last failure and its next possible purpose. The torn advertisement frame wanted to become a blade rack. The copper wire wanted tension. The springs wanted release. The plexiglass wanted to become caltrops. Even the spilled soda syrup offered itself up as adhesive slime if mixed with pulverized tile dust and whatever alkaline sludge had leaked from the vending machine battery.

“That’s battery acid,” Dr. Rao warned as Mara cracked the casing with the concrete chunk.

“Then don’t drink it.”

“I was not planning to.”

“Great. We’re bonding.”

Jessa knelt beside her, hands shaking as she snapped plexiglass into jagged triangles. Every few seconds her eyes unfocused. “Weak point,” she whispered. “Eyes. Throat under jaw. Front right leg if they’re turning. The System keeps showing me red flashes.”

“Can you call them out when they come?” Mara asked.

Jessa nodded too fast.

Carl dragged the dead rats to the middle of the platform despite the blood slicking his pant leg. Mara had him cut them open with the broken bat shard and smear gore across the tiles leading toward the trap lane. The smell hit like a physical slap: hot copper, musk, and sewer rot.

“This is the worst craft project I’ve ever done,” Carl said through clenched teeth.

“You have lived a blessed life.”

They made the lane between the toppled vending machine and a row of benches bolted to the floor. Wire ran ankle-high in three staggered lines. Behind it, Mara scattered plexiglass caltrops coated in sticky soda-acid paste. Rat teeth got wedged point-up into strips of torn hide and tied around the legs of the benches. Springs were rigged to fling ceramic shards from a bent ad frame if anything hit the central wire.

None of it looked like a trap from a movie. It looked like a lawsuit in progress.

To Mara, it glowed faintly at the edges.

Improvised Trap Network assembled.
Components: Trash-tier x14, Common x2
Synergy detected: Scavenger’s Fieldcraft
Effect: Bleed, Slow, Minor Pierce, Noise Trigger
Stability: Questionable

“Questionable?” Mara hissed. “I built you out of snack machine organs in three minutes. Have some respect.”

Dr. Rao, stationed behind the benches with a sharpened umbrella she had found under a seat, glanced over. “Are you arguing with the air?”

“The air started it.”

The station lights went out.

For half a second, the world became absolute black.

Then the dungeon woke the walls.

Blue veins of light spread through the tile grout, pulsing softly. The symbols scratched over the advertisements glowed. The mist in the track pit thickened and breathed. In that underwater radiance, every blood smear shone black.

Skittering approached from both ends of the platform.

Not one rat. Not three.

Dozens.

The sound of their claws became rain on sheet metal. Their chittering overlapped until it was almost speech. Mara saw eyes first, white beads bobbing in the dark beyond the turnstiles and at the far stairwell. Then bodies poured after them, lean and bristling, tusks catching the dungeon-light.

Carl muttered something that might have been a prayer or a threat.

Jessa raised the signpost. It rattled against the floor.

Dr. Rao’s jaw set. “I have decided,” she said, “that retirement was preferable.”

“Hold until they commit,” Mara said.

Her voice sounded steadier than the rest of her. Her hands were slick around the dagger. The cracked blade pulsed once, as if offended by the competition.

The first wave hit the gore trail and lost their tiny minds.

They surged straight into the lane.

The front rat struck the first wire. It flipped and tangled, shrieking. The second hurdled it and landed in the caltrops. Plexiglass spikes punched into soft paw pads. The creature screamed and thrashed sideways, slamming into the bench where rat teeth tore its flank open. A third hit the central wire.

The spring trap fired.

Ceramic shards exploded across the lane with a sound like plates thrown against a wall. Two rats went down immediately, faces shredded. Another staggered away with a tile fragment buried in its eye.

Improvised Trap Network dealt 18 damage.

Bleed applied.

Slow applied.

“Holy—” Carl began.

“Less awe, more hitting!” Mara shouted.

The swarm crashed into them.

Carl met the first rat that cleared the traps with his broken bat, driving the jagged end into its open mouth. The creature’s momentum shoved him back, boots sliding in blood, but he roared and twisted until the bat punched out through the side of its throat.

“Left!” Jessa screamed. “Left, under the bench!”

Mara pivoted as a rat squeezed below the seats, ribs flattening horribly. She kicked the bench leg. The hide strip tied there snapped taut, rat teeth ripping across the creature’s spine. It convulsed, stuck halfway through. Mara stabbed downward with the cracked dagger.

The blade skidded off bristle armor.

“Oh, come on.”

The rat twisted, jaws snapping inches from her shin. Jessa lunged and speared it through the eye with the signpost. The metal point sank deep. The rat went limp, and Jessa made a strangled sound, half sob, half laugh.

“Weak point,” she gasped.

“Great callout.” Mara yanked her dagger free from fur. “Ten out of ten. Horrifying service, would use again.”

More rats came.

The trap network slowed them, but did not stop them. Wires snapped. Springs fired empty. Caltrops vanished under bodies. The platform became a churn of fur, blood, and screaming. Somewhere beyond their barricade, another survivor group fought and lost ground; Mara caught flashes of a man in a suit throwing fire from his fingertips, a teenager with a glowing hockey stick, a woman climbing onto a kiosk as rats swarmed below.

The System filled the air with cold little announcements.

Participant eliminated.

Participant eliminated.

Participants Remaining: 14

Mara stopped reading them.

She moved from weak point to weak point, following Jessa’s frantic calls and the whispers of broken things under her boots. When her dagger failed to pierce, she used it to hook and drag. When a rat lunged, she shoved a vending coil into its mouth and let it bite down until the spring jammed between its jaws. When one tore into Carl’s arm, Dr. Rao stabbed it in the throat with her umbrella and snarled, “No,” like correcting a rude student.

Mara’s stamina burned down to shaking muscle and static vision. A status bar she had not noticed before hovered at the edge of her sight.

HP: 24/30
Stamina: 8/35

“Would’ve been nice to know that existed earlier,” she panted.

A rat came over the vending machine.

Mara saw it too late. It launched from the top in a blur, claws spread, jaws wide. She threw up her left arm. Pain flashed white as teeth tore through her jacket sleeve and into flesh. The impact knocked her onto her back. The rat landed on her chest, rank breath blasting her face, iron tusks scraping her cheek.