The bulge in the ceiling stretches an inch, then two. Plaster cracks in a branching pattern, tiny white flakes dropping onto my jacket like slow snow. Whatever's pressing through is long. Thin. Testing the material, not committed yet.
I pull back a step—not fear, just distance. I don't like anything that takes its time breaking into a room.
The mark under my skin hums again. Not sound; more like someone strummed a nerve. The air tightens with it, the hallway turning into a throat. Everything feels closer.
A faint scraping noise travels along the ceiling—fast—then stops right above me.
"Come on," I mutter. "Pick a direction."
The ceiling splits. A single jointed limb pokes through first—twice as long as my arm, bone-thin, grayish skin stretched over cable-like tendons. A Corridor Crawler, but altered. Its movements glitch slightly, like a bad lighting effect running on poor wiring.
System flickers:
CORRIDOR CRAWLER: ADAPTED
THREAT: VARIABLE
NOTE: ENTITY RESPONDING TO MARKED STATUS
No good news there.
The limb bends backward with a wet pop, then another limb emerges beside it. The crawler drags half its upper body through the plaster, head twisting in that way Crawlers do when they hear something they want to peel open.
Its eyes aren't the usual dead black. They're pale blue, same faint LED glow the rooftop variants had. Same influence. Glyph-connected.
It sees me.
And—unexpectedly—freezes.
Not fear. Recognition.
A shudder goes through its torso, almost like a dog caught between attack and retreat. The mark pulses under my skin again. Hot. A pressure from inside, not outside.
The crawler lets out a sound I've never heard from its kind—a low, slow hiss that ends in something like static. Then its limbs retract a few inches.
Testing me.
I keep my knife low, angled, not raised. Threatening a crawler usually triggers the lunge. This one isn't following the book.
"Yeah," I say quietly. "I know. I smell wrong tonight."
It crawls further out of the ceiling anyway, grips the hallway wall with bare hands, and stretches to full length. Seven feet of bent angles and stretched joints. The glyph-tint shiver in its muscles makes it look like someone spliced shadow into it.
Then it does something worse.
It tilts its head—slow, deliberate—and taps the wall with one elongated finger.
Knock.Knock.Knock.
Same pattern I heard when I first entered the stairwell.
A signal.
My stomach drops a little.
Not because of the sound. Because the crawler's posture changes after it does it—as if it's waiting for an answer.
Something deeper in the building answers back.
Three knocks. Farther up. Heavy.
"Fantastic," I whisper.
The crawler pulls its limbs tight as if bracing. Eyes locked on me, though. Not looking at the new sounds. It wants to see what I do.
The mark flares again—bright enough that for a second the hallway tint shifts. Just a flicker at the corner of my vision, like my shadow came loose.
The crawler recoils like it felt a shock. Its fingers tear shallow tracks in the wall as it drags itself backward, away from me. Not fleeing. Retreating to observe.
The knocks above shift direction. Something else is coming down.
I don't wait around to meet the welcoming committee all at once. I step sideways and head up the stairs, but slow enough not to trigger whatever instinct the crawler's fighting.
It tracks me with its head but doesn't attack.
Could pounce. Doesn't.
The mark is doing something to them. Or to me. Or both.
Halfway to the next floor, the whole building exhales—a long, low groan of settling concrete. But it's not settling. Something is moving inside the structure, pushing sound through pipes and vents like messages.
District 12's usual charm turned up to eleven.
At the ninth floor landing I stop short.
The hallway ahead looks wrong. Too dark. A section of ceiling light flickers, dies, and something crawls across the gap where the light used to be. Can't see its shape—only the drag of limbs and a glint of blue in the dark.
System nudges at the edge of my vision:
OBJECTIVE: OBSERVE MONSTER RESPONSE TO MARKED STATUS
RECOMMENDED: CONTROLLED PROXIMITY
Right. Lab rat.
I step into the hall.
The creature in the shadows goes still. The soft scrape of limbs pauses. The air thickens.
My knife feels heavier in my hand.
One blue eye—just one—lights up far down the corridor. The creature stays half-hidden behind a doorframe. Watching.
Then something unexpected: it bows its head. Not fully. Just a slight dip.
Respect? Submission? Recognition? Doesn't matter which—none are normal.
I take another step.
The creature lets out a small, glitchy chirp—almost like feedback—and withdraws, sliding into the darkness of the unit. No aggression. Just avoidance.
I exhale slowly. My breath fogs in front of me again.
"Marked," I mutter. "Guess that's a thing."
But the knock-answering rhythm from earlier starts again. This time from multiple floors. Not random. Coordinated.
That freezes the last bit of confidence out of me.
Crawlers don't coordinate.
Not unless something bigger is on the line.
I follow the knocks—not because I want to, but because the objective window tracks them, shifting GPS-style markers as if the building itself is a map.
They lead me to apartment 914. Door cracked. No light inside.
The mark under my skin pulses the hardest it has all night.
System text rolls up, jittering at the edges:
NODE SIGNATURE DETECTED
UNCONFIRMED: POSSIBLE ACCESS POINT
ENTER WITH CAUTION
The door creaks open another inch by itself.
Inside: darkness, thick as oil.
And a soft whisper—same static-smeared tone as the thing in the old station:
"Ka…de…"
My grip tightens on the knife.
Behind me, something taps the wall again—three slow knocks.
Too close.
I shove the door fully open and step inside.
Whatever's waiting in the dark shifts toward me.
And the door swings shut on its own.