Jose Alvarez arrived with a ladder, a toolbox, a roll of temporary mesh, and the expression of a man who had been betrayed repeatedly by buildings.
Mayra opened the door.
“Hey, Jose.” “No.” She blinked.
“I didn’t ask anything.” “You were going to.” He entered Room 317 and set the mesh beside the window.
I watched from behind Amelia’s hair.
It had become a useful hiding place—dark, warm, and close to the most dangerous person in the room, which made it paradoxically safe.
Jose inspected the frame.
The old screen had torn near one corner.
Not gecko damage.
Not mine.
Larger.
Several thin scratches marked the metal.
Jose frowned.
“Third one this week.” Amelia stood near the desk.
“Same floor?” “Two here.
One upstairs.” Mayra leaned against the bed.
“Raccoons?” Jose looked at the screen, then at her.
“Sure.” “That your official answer?” “It’s the answer that fits the dropdown menu.” I liked Jose.
He removed the damaged screen.
Something dark was embedded near one screw—tiny from his perspective, obvious from mine.
Chitin.
The Codex reacted faintly.
— Mutated arthropod residue detected.
— There.
Not raccoon.
Jose scraped the fragment free with a screwdriver and examined it.
His expression changed by less than most people would notice.
Amelia noticed.
So did I.
He wiped it onto a paper towel.
Mayra asked, “What is it?” “Bug shell.” “What kind?” “Big bug.” Good answer.
He stretched the temporary mesh over the opening and secured it with tape.
“I’ll bring the fitted replacement tomorrow.” Then he looked toward the ceiling vent.
Faint scoring marked one edge of the cover.
From the cockroach.
Maybe from others.
Jose moved the ladder, climbed, and removed two screws.
Warm air entered the room carrying dust, metal, and something biological.
My attention sharpened.
The shaft beyond was dark.
Jose shone a flashlight inside.
Nothing visible.
Then: Scrrk.
Far inside.
He stopped.
Mayra stopped.
Amelia became very still.
I stayed hidden.
Jose listened, then said, “Probably a mouse.” No.
Not that sound.
He replaced the cover more tightly than before and gathered his tools.
“Facilities is checking the east-side chase tomorrow.” Mayra brightened.
“Can we—” “No.” “I still didn’t finish.” “No.” He left before she could reform the question.
Mayra stared after him, offended.
Amelia waited until the door closed, then held one hand near her shoulder.
I emerged from her hair and flew to the notebook.
She opened the alphabet page.
I spelled: C H I T I N Then: M U T A T E D Amelia nodded.
“The frame residue.” One buzz.
Then: V E N T S A M E Probably the same source.
Amelia wrote the conclusion beneath the building notes.
Mayra looked from me to the alphabet, then to Amelia.
Silence.
We had forgotten she was still there.
Mayra pointed at me.
“He’s spelling.” Amelia answered, “No.” It was the worst lie she had told so far.
Mayra looked at the notebook.
CHITIN MUTATED VENT SAME Then at me.
I flew away.
Too late.
Mayra sat slowly on the edge of her bed.
“No.” Familiar response.
Amelia closed the notebook.
Mayra pointed again.
“You have an intelligent mosquito.” Amelia did not answer.
That was answer enough.
Mayra stood, walked to the door, stopped, and turned back.
“Kevin?” Long high buzz.
Idiot.
She stared.
Then looked at Amelia.
“That means something.” Amelia exhaled.
“Yes.” “What?” “Idiot.” Mayra looked at me.
Then she began laughing.
Not fear.
Not screaming.
Laughing hard enough that she had to sit on the floor.
“Kevin has been calling me an idiot.” Idiot buzz.
She laughed harder.
Amelia pinched the bridge of her nose.
“His name is Plenteaful.” Mayra stopped.
“Plenteaful.” One buzz.
Yes.
Her expression changed.
The comedy did not disappear, but something more careful entered beneath it.
“Oh my God.” The truth took nearly an hour.
Not all of it.
Before Amelia revealed anything, she opened the notebook and asked me directly: WHAT MAY I TELL HER?
That mattered.
Mayra watched without interrupting.
I answered slowly.
SMART CODEX TRAITS DANGER Then: NOT BEFORE Amelia understood.
My former human life remained private.
For now.
She told Mayra that I was sapient, understood English, and possessed an adaptive system called the Codex.
I could gain small amounts of energy through feeding, analyze unusual biology, and integrate compatible traits.
Frost resistance.
Reinforced chitin.
Venom.
Regeneration.
Mayra listened with her mouth slightly open.
Then she looked at my nearly restored leg.
“The gecko.” One buzz.
“And the spider gave him venom.” Yes.
“The giant roach gave him armor.” Yes.
She rubbed both hands over her face.
“I thought Amelia had a weird pet.” I used two buzzes.
No.
Mayra lowered her hands.
“Right.
Not a pet.” She looked embarrassed now.
Good.
Then she asked the important questions.
“Can he understand everything we say?” One buzz.
Mayra’s eyes widened.
“Everything?” I tilted one leg.
Most.
She looked toward the bathroom.
I immediately understood where this was going.
“No,” she said.
“We need privacy rules.” Reasonable.
Amelia wrote them down.
Bathroom door closed meant no entering unless there was an emergency.
No listening outside the door deliberately.
No reading private screens or messages without permission.
No flying into clothing.
No feeding from anyone without consent.
The last rule already existed.
Mayra added it twice.
Then she looked at me.
“Have you been judging me?” One buzz.
Yes.
She closed her eyes.
“Fair.” Next: “Is he dangerous?” Amelia looked at me.
To healthy adult humans?
Not meaningfully.
To small insects?
Increasingly.
Amelia answered, “Not to you unless you threaten him.” Mayra nodded.
“Good.” Then she asked, “Is he a person?” The room quieted.
Amelia answered without qualification.
“Yes.” Something tightened inside me.
Mayra looked at me differently after that.
Not as a pet.
Not as a human.
Simply as someone whose answer mattered.
“Okay,” she said.
Then she looked toward the clear enclosure near the window.
“I’m sorry about Kevin’s House.” Good.
She walked over, peeled off the label, and held it up.
“Do you want the container gone too?” I considered.
The enclosure had ventilation, clean water, sugar, and physical protection during pest control.
Useful as emergency shelter.
The furniture was insulting, but survivable.
I flew to the notebook.
KEEP Mayra smiled.
Then I added: NO NAME Her smile weakened.
“Fine.” She folded the Kevin label and put it in a drawer instead of throwing it away.
I noticed.
Future problem.
Then Mayra became practical.
That surprised me more than the laughter.
She drew a clean table in a fresh notebook: BUZZ SIGNALS YES — 1 NO — 2 ATTENTION — 3 RAPID DANGER — HIGH / SHORT / HIGH IDIOT — LONG / HIGH She added space for future signals, then made a separate trait list and asked Amelia to correct every term.
“Why?” Amelia asked.
“Because if he gets hurt and tries to tell us what stopped working, I don’t want to call venom ‘the spider thing.'” That was annoyingly competent.
Mayra also established a rule of her own: “No telling Sam.” Amelia looked at her.
Mayra raised both hands.
“I know.
I talk.
I’m not stupid.” I used one buzz.
Maybe.
She pointed.
“Do not ruin my growth moment.” The actual problem remained.
Vent.
Screens.
Mutated residue.
Jose entering the east-side chase tomorrow.
Amelia drew a rough dorm map from memory.
I pointed toward the vent, then down.
Mayra leaned closer.
“You want to scout before Jose goes in.” One buzz.
Amelia immediately said, “No.” I looked at her.
“We do not know the route,” she continued.
“Or what made that sound.” Mayra tapped the page.
“Then we don’t send him far.” Amelia looked at her.
Mayra continued, “The basement laundry has a lint-service panel beside the east wall.
I’ve seen Jose open it.
If it connects to the same chase, Plenteaful can confirm direction and come back.” I stared at her.
Management.
Actual management.
Amelia considered.
“Public room.
No locked access.” “Exactly.” “Short reconnaissance only.” Mayra nodded.
I buzzed once.
Amelia’s eyes moved to me.
“At the first sign of danger, you return.” One buzz.
“No feeding.” Yes.
“No sampling.” I hesitated.
“Plenteaful.” One buzz.
Agreed.
Mayra wrote at the top of the page: OPERATION BUG BASEMENT Amelia crossed it out.
Mayra rewrote it larger.
I used the idiot buzz.
She smiled.
“Team consensus.” No.
— We waited until after midnight.
The basement laundry room was empty except for two machines turning slowly behind round glass doors.
Mayra carried a notebook and stood near the hall as lookout.
Amelia waited beside the east wall.
The service panel sat low behind a rolling laundry cart.
It was not locked.
One corner had warped enough to leave a narrow gap.
Plenty of room for me.
Mayra checked the time.
“Five minutes out, one minute report margin.” Amelia looked at her.
“What?” Mayra said.
“He can’t carry a watch.” Good point.
Amelia crouched beside the opening.
“You enter, confirm the shaft, and return.
No deeper descent.” One buzz.
I flew through.
The laundry-side chase was warmer than Room 317’s vent and much louder.
Machines transmitted vibration through the walls.
Pipes ran vertically beside electrical conduits.
Lint clung to metal edges in gray mats.
I moved upward first.
That was the instruction: confirm whether the shaft connected to the occupied floors.
The vertical passage narrowed near the first-floor branch.
Air carried the smell of insects—many insects—along with something faintly unfamiliar.
Energy.
Not Amelia’s cold.
Not a creature close enough to scan.
An environmental current, weak but persistent, rising from below.
The Codex appeared.
— Trace environmental spiritual energy detected.
Directionality: Lower levels — There.
I should have turned back.
Instead, I climbed another few feet to confirm the branch.
Scratches marked one pipe.
A dark piece of chitin clung near a seam.
Then the wall beneath me moved.
No.
Not the wall.
A body.
Long.
Segmented.
Black-red.
A centipede crawled from the lower shaft, far larger than the ones humans found beneath flowerpots.
Its body filled much of the narrow space, dozens of legs gripping metal.
The Codex flashed.
— Mutated centipede detected.
Threat level: Extreme — Five minutes suddenly felt ambitious.
I turned.
The centipede’s antennae found me.
It accelerated upward.
No exploratory pause.
No territorial warning.
Hunt.
I flew through the vertical chase, using the pipes as barriers.
The centipede climbed almost as quickly as I could maneuver in the confined space.
Its front legs struck the conduit behind me.
Clang.
I cut left through a gap between water lines.
It followed by curling around the pipe, body flexing with disgusting efficiency.
No fighting.
No venom.
No sample.
Leave.
The laundry branch appeared below and to my right.
I dropped, folded one wing close to clear the narrow angle, and entered the horizontal passage.
The centipede hit the junction behind me.
Its mandibles snapped close enough that the air moved against my abdomen.
I accelerated toward the warped service panel.
The machines outside had stopped.
The room was suddenly quiet.
Bad for concealment.
Good for hearing Mayra whisper, “He’s late.” I reached the opening.
Antennae brushed my rear legs.
I shot through the gap.
Amelia’s hand was already waiting.
I landed badly against her palm, and she closed her fingers around me without crushing.
The centipede struck the inside of the panel.
BANG.
Mayra jumped backward.
The warped metal shifted by half an inch.
Amelia pulled the laundry cart in front of it.
“Move,” she said.
We moved.
Immediately.
Back in Room 317, Mayra locked the door even though the centipede was three floors below and probably unable to use stairs.
Probably.
She opened the notebook.
I reported.
S A M E S H A F T E N E R G Y D O W N Then: C E N T I P E D E B I G Mayra stared at the word.
“How big?” I traced a length across the page.
Her face changed.
Amelia’s became completely still.
“One of the organisms is already large enough to threaten a human hand,” she said.
Maybe.
I buzzed once.
Mayra copied the route onto the map from memory, including every turn I could describe.
Then she circled the downward shaft.
“The energy is below the laundry branch,” she said.
Yes.
Amelia looked toward the floor.
Tomorrow, Jose would inspect the east-side chase.
Before he did, we needed the building layout.
Mayra tapped the map.
“Management.” I gave the idiot buzz.
She smiled and wrote OPERATION BUG BASEMENT across the top again.
This time, Amelia did not cross it out.
The first trip into the walls had given us a direction.
The next one would require a map.