Killer Rat

The world was one you might have heard of—at least in whispers. A world of fur and claws, snouts and whiskers. A world of mammals who walked on two legs, thought in sentences, built cities, traded goods, waged war, and wore shoes—at least, the wealthier ones did. They looked like the animals you’d recognize in any naturalist’s sketchbook, but they stood upright on their hind legs with ease, hands free to point, hold, steal, or comfort.

This was Rodentia.

A sprawling continent of small mammals with big ideas. At its heart sat the Big City—pulsing, towering, alive. It wasn’t just a city; it was the city. The center of culture, of industry, of progress. Rodents from every corner of the continent came here in search of something more. Work. Wealth. Belonging. They brought their dreams with them. Most left with less.

But for every shining avenue and spotless tower, there was a crack. And in one of those cracks, something festered.

There was a place the maps didn’t name. A place where sunlight didn’t linger. Where the pipes wept rust, and the alleyways choked on the bones of old buildings. Some called it the Outer Edge. Others just called it home.

The Slums.

No law ruled here. No fashion. No mercy. Rats crawled over rats, living bare-furred and hungry, scraping through the rot of the city’s riches. It wasn’t always this way—but it had been this way long enough.

It was where the city’s forgotten drifted. Mostly rats—gray, brown, patchy, ragged—scavenging and scratching for food, for shelter, for anything close to dignity. In the high-rises of the Inner City, clothes were fashion. In the Slums, clothes were luxury. Most wore nothing at all, save for what the wind blew into the gutters or what the trash gave up.

But the rats didn’t just battle hunger here. No, something else stalked the alleys.

Something worse.

They called it the Killer Rat.

It started three years ago. Quietly, then suddenly. Slum rats disappearing. Then reappearing, or what was left of them. Gutted. Torn. Always brutal. Always another rat. No patterns. No clues. And no help. The city’s law didn’t reach this far down. There were no guards. No officials. Just silence, rotting walls, and the wrong kind of nightfall.

And still, life crawled on.

“D-uh, this can't be redeemed, can it?”

Chucky held up something mushy and green, squinting at it as if squinting might change the answer. His wide brown belly jiggled as he shifted in the bin. The ochre patch around his mouth was dusted with crumbs from a previous misadventure.

Simon, lanky and pale as bone ash, didn’t look up from his own side of the trash heap. “Don’t eat that”

He had long, unusually shaped legs—bent in strange angles, firm in strange places. They weren’t wrong, just… not quite rodent. And on his face, across his narrow snout and brow, stretched a pale pink lower case “m” shaped patch like raw skin, the same colour as the insides of his twitching ears.

He looked like something out of a storybook no one read anymore.

A shriek cut through the morning murk.

Simon’s ears twitched. He sat up.

A frantic female rat ran down the alley, fur frizzed, eyes wide. “He’s dead! Again—another one’s dead! Behind the old tin stack!”

"What?!"

"It's the third one this month"

"It's getting worse"

The wet filthy roads were now filled with concerned murmurs.

“Again?” Simon whispered.

“D-uh, what?” Chucky frowned.

Simon climbed down the bin and dusted off his fur. “Killer Rat’s still out there.”

“Oh, that guy,” Chucky muttered, waddling after his brother with a slight wheeze. “D-uh, I thought he was, like, a myth or sumthin’…”

Simon smiled faintly, voice dipped in something thick and sweet. “Oh, Chucky. My sweet, dumb brother.”

There was no cruelty in his words. Only affection, warm and teasing like sun on cold metal.

“Not a myth,” Simon said, “just ignored. And forgotten. The last time he went on a real spree was about three months ago.”

He paused, ears twitching before adding, “Rats just started vanishing. Or turning up dead. No real pattern. No one to report to. At first, we thought it was the government trying to clean house—get rid of the poor ones dragging the economy down. But the louder rumour says it’s just one rat. One psycho.”

“A serial killer…” Chucky said slowly, scratching at his side. “D-uh… that’s… sad.”

Simon nodded, the smile fading from his voice. “Yeah. Real sad. It’s been five years, Chucky. And no one knows who or what Killer Rat actually is.”

Chucky didn’t answer right away. A bead of sweat slid down his temple.

“…What do you think it could be?” he asked quietly.

Simon gave a one-shouldered shrug and smirked at his older brother. “I don’t know.”

The silence hung between them, thick as fog.

Then Chucky cleared his throat and changed the subject like someone trying to bail water from a sinking boat. “D-uh, this trash ain’t got nothin’ good. Let’s, uhh… let’s check somewhere else.”

Then—crack! Something struck Chucky’s head.

"Ow...!” He toppled backward into the bin with a thud, looking tired as always.

Simon snapped around, ears flat and eyes narrowed.

Two rats leaned against the alley wall, snickering.

“Well, well,” sneered one of the rats, a half-chewed toothpick bobbing between his yellowed teeth. “If it isn’t Chunky Chucky and his freak-show brother.”

He kicked aside a dented can with flair. “Why don’t you two leave the trash food for folks who actually need it, huh, Fatzo?”

“Freak Kick,” the other one chimed in, jabbing a claw toward Simon’s legs. “The circus still hasn't called back?”

Simon’s fists curled tight. The crooked smile vanished from his face.

He stepped forward once, slow.

“Simon…” Chucky’s voice came soft and monotone as usual. He was halfway out of the bin, paws raised. “D-uh… it’s fine. Let’s just go.”

“Aw, listen to that,” the first bully cackled. “The big lunk speaks! Maybe someday he’ll learn how to talk without sounding like a f**king retard”

Simon growled, fists clenched, knuckles whiter than his fur and untrimmed claws digging into his flesh.

It wasn’t loud. But it was sharp.

Chucky placed a paw on his brother’s arm, grip firm. “Let’s go, Simon.”

The bullies snickered.

“Yeah, yeah. Run along, Freak Kick. Follow your fat, stupid brother.”

Simon’s eyes burned as they turned away, his breath catching with restraint. In his mind, he snarled—No one calls him fat or stupid but me.

He looked over his shoulder one last time.

“I hope the Killer Rat comes for you next,” he said, voice low and cold.

That shut them up.

He turned and walked away, tail flicking, ears sharp with fury. Chucky followed, quietly panting, his sweaty fingers clasped together, fidgeting nervously.

The next day.

They found nothing edible.

The bins had been empty, or already claimed by someone bigger. The brothers were making their way back toward the abandoned drainpipe they called home when a voice tore through the air like a blade.

“YOU!”

Simon barely turned when the rat lunged.

“I’LL KILL YOU!”

It was one of yesterday’s bullies—the one with the toothpick. His face was wild with rage, his fur messy and unkempt.

“You cursed him! You freak! You wished he’d died and now he’s DEAD!”

Simon fought back instinctively. “What?! Get Off me!”

“GUTTED! RIPPED OPEN!” The rat screamed, pointing a claw at Simon’s chest. “There's only one explanation and that's you’re the Killer Rat! You killed Dan! And I was next wasn't I?!"

A small crowd had gathered. Slum rats peeking from crates, piles of trash, drain holes.

Chucky was sweating. Hard. His whole face looked like someone had poured soup over it.

Another voice murmured, “Isn’t that the weird one? The one with the legs?”

“I knew there was something wrong with him” someone whispered.

“His legs are probably not the only thing wrong with 'im”

“Huh…”

Simon blinked, stunned. Then—Chucky stepped forward.

“My b-brother is not the killer rat!” he yelled, voice quivering. “D-uh, I'll prove it”

Simon, still wiping blood from his mouth, stared at him in disbelief. "WHAT?!"

Silence.

Then laughter. Disbelief. Mockery.

“You?” one rat coughed. “You’re gonna fight a serial killer with what? That belly?”

Another added, "He's asking for a death wish, this one"

But Chucky didn’t flinch. He stood his ground, tail low, ears high. His voice still monotone.

"D-uh, I'll prove it! Give me three months. I'll find killer rat"

Simon was still frozen, eyes wide. “Chucky…”

Later, when the crowd had dispersed and the alley was theirs again, Simon stared at his brother.

“You know you're not going to find the killer rat, right?”

Chucky looked at the ground and sighed. “I have to. You're my brother and I have to look out for you”

Simon didn’t speak.

Chucky scratched his arm nervously. “And I can't let you get punished for something that you didn't do”

Simon blinked again. His face softened.

“Thank you, brother. You're so nice to me”

“I’m… sweaty,” Chucky muttered, wiping his brow.

Simon laughed—soft and warm. Then, without warning, he hugged him tight.

Chucky stood there, awkward and blinking and damp. His tail twitched nervously as Simon held him.

His ears drooped slowly as he thought of what he was about to drag his brother into.

No government. No help. No weapons. No plan. Nothing to fight with and nothing to lose but their lives.

Just two brothers.

Against one monster.