Chapter 2: Do Not Open the Doors

The first person to turn inside the clinic was Mrs. Alondra Pike.

She had been in exam room three with a blood pressure cuff still cinched around one soft brown arm, complaining that the machine was lying about her systolic because she had walked two blocks uphill through smoke and anyone’s pressure would be high after that. She was sixty-eight, diabetic, proud, and wore lavender nail polish with tiny silver stars. Ten minutes ago, she had smacked Elias’s hand with a rolled magazine when he suggested she cut down on salt.

Now she was on the floor beneath the paper-covered exam table, folded wrong.

The sound had brought him running: not a scream, exactly, but a wet gulping cough like someone trying to swallow a mouthful of glass. The clinic lights flickered overhead, buzzing in their cheap fluorescent housings. Every computer monitor behind the nurses’ station still glowed a single shade of impossible red. The phones had stopped ringing because there were too many calls for them to understand. Outside, Denver wailed—sirens, car alarms, distant impacts, and something deeper beneath it all, a whale-song groan of metal and stone as black towers finished growing through the city.

Elias hit the doorway hard enough to send pain lancing up both ruined knees.

“Mrs. Pike?”

Her head snapped toward him.

Not turned. Snapped.

The motion cracked three times in her neck. Her eyes had gone milky, the irises swallowed by a film like spoiled skim milk. Black veins climbed from her collar and webbed across her cheeks, pulsing beneath the skin. Her mouth worked around sounds that weren’t language.

“Eli,” she said.

He froze.

Only one person had ever called him that in that exact drawl, the name dragged soft at the end like a thread pulled through teeth.

His brother had been dead nine years.

Mrs. Pike smiled with Darren’s voice.

“You left me in the snow.”

The room narrowed around Elias. For half a second he was not in the Denver Mutual Aid Clinic with smoke seeping through the vents and the end of the world pressing against the windows. He was on a mountain road above Leadville, kneeling in a blood-spotted drift, his gloves slick, his radio hissing static, Darren’s crushed chest lifting once under the wreckage and then never again.

Not now.

He forced air into his lungs. The clinic stank of disinfectant, hot electronics, old coffee, and something new coming off Mrs. Pike’s skin: burned pennies and cemetery mud.

“Mrs. Pike,” he said carefully, keeping his hands open, low. “I need you to stay where you are.”

Her body rose without using her hands. Knees bent backward. The cuff hose stretched, snapped, whipped across the floor. Her lavender nails gouged furrows into the linoleum.

Behind Elias, someone shouted, “What the hell is wrong with her?”

Mara Singh, the night nurse, stood near the supply closet with a crash cart half-dragged into the hall. She was five foot nothing, forty-two, and had once intimidated a drunk off-duty cop into apologizing to a vending machine. Her thick black braid had come loose, hair stuck to the sweat on her temples. She held a fire extinguisher like a club.

“Back up,” Elias said.

“I asked you what’s wrong with her.”

Mrs. Pike’s smile widened until the corners split.

“Hungry,” she said in Darren’s voice.

Then she launched herself at him.

Elias moved on training and old terror. He pivoted, letting her miss his throat by inches, and her shoulder slammed into the doorframe with a meaty crack. Pain detonated in his left knee as he twisted. He grabbed the blood pressure cuff hose from the floor, looped it over her head, and hauled backward with both hands.

She was strong. Wrongly strong.

Her feet kicked, toes scraping, and a sound like laughter bubbled from her throat. Elias planted one boot against the wall and pulled until the rubber hose bit deep beneath her jaw. Any living person would have clawed at the constriction. Mrs. Pike clawed at the wall instead, carving plaster down to the mesh.

“Mara!” Elias barked.

The nurse didn’t hesitate. She stepped in and emptied the fire extinguisher into Mrs. Pike’s face.

White chemical fog filled the exam room. Mrs. Pike shrieked. The voice changed mid-scream, Darren’s accusation shredding into a dozen others—men, women, a child sobbing for her mother, an old man laughing as though at a funeral joke.

Elias drove his weight forward. Mrs. Pike stumbled. Mara swung the extinguisher with a grunt and struck the side of her skull.

Once.

Twice.

The third hit made a sound Elias knew too well.

Mrs. Pike went limp.

They both stood over her, breathing hard, the extinguisher fog drifting like winter in the bright little room. The red monitor glow bled through it from the hall.

Mara’s hands shook. She looked at the dented metal cylinder, then at Mrs. Pike, then at Elias.

“Tell me she was already dead,” she whispered.

Elias knelt despite the knives in his knees and pressed two fingers to Mrs. Pike’s throat. The skin was cold. Not cooling. Cold, as if she had been left in a freezer. No pulse beat under his touch.

But beneath his fingertips, something tapped back.

Three knocks from inside the flesh.

He jerked away.

From the waiting room came a crash, a scream, and the unmistakable wet tearing sound of teeth finding meat.

Mara’s face hardened around the fear. “We need to move.”

They ran.

The clinic had been designed for poor people and patience: a narrow reception area with mismatched chairs, a play corner with plastic blocks, four exam rooms, two bathrooms, a med closet, a staff room that smelled perpetually of microwaved noodles, and a front entrance made of glass because someone in administration had once believed transparency made patients feel welcome.

Now the front entrance showed only smoke and shadows.

Something stood outside the glass doors, pressed so close its face flattened against the pane. It looked like a man in a delivery uniform. It had no eyes. Its sockets smoked black, and from its mouth came the voice of a woman crying.

“Please,” it begged. “Please let me in. I have my baby. I have my baby.”

There was no baby. Its hands were too long, fingertips split into hooked gray nails that clicked against the glass.

In the waiting room, chaos had turned human bodies into obstacles.

A man in a Broncos hoodie had pinned old Mr. Lacroix against the check-in counter and was chewing into his cheek. Mr. Lacroix’s cane lay snapped beneath them. A pregnant woman Elias recognized from weekly blood pressure checks huddled behind the chairs, one hand over her belly, eyes huge and silent. Two children clung to a water cooler. The receptionist, Jamie, was on top of her desk, trying to kick away a woman who had been waiting for antibiotics and now crawled upward with her mouth opening vertically, jaw unhinged like a snake’s.

“Elias!” Jamie screamed. “Do something!”

He wanted a weapon. He wanted a team, a radio channel, a spine board, a helicopter, a world that still obeyed anatomy and procedure. He had a bad knee, an empty oxygen tank near the wall, and the stubborn fact that people would die if he stood there wanting.

He snatched the oxygen tank, twisted it free of the cart, and limped into the waiting room.

“Mara, get them back!”

“Where?”

“Staff room. Lock it.”

“That door wouldn’t stop a teenager with a grudge.”

“Then stack furniture.”

The Broncos man lifted his head from Mr. Lacroix’s face. Blood sheeted down his chin. His eyes had the same milk-film as Mrs. Pike, but his lips curled in a grin that belonged to someone else entirely.

“Medic,” he said.

Elias stopped.

The voice was not Darren this time. It was softer. Female. Raw with exhaustion.

“You promised I’d make it.”

A burn scar tightened across Elias’s memory: a collapsed apartment building on Colfax, a woman trapped beneath a concrete slab, dust painting her eyelashes white. He had held her hand for forty minutes while they cut rebar. He had promised because people in pain needed promises, and because back then he had still believed God might mistake confidence for authority.

She had died before the saws reached her.

The thing wearing the Broncos hoodie spat Mr. Lacroix’s skin onto the counter.

“Liar,” it said.

Elias swung the oxygen tank with both hands.

It connected with the side of the creature’s head and drove it sideways into the plexiglass sneeze guard. The guard cracked. The creature didn’t fall. Elias swung again, lower, aiming for the knee. Bone snapped. That brought it down.

Mara hauled the pregnant woman to her feet. “Move, sweetheart. Now. Kids, with me! Jamie, stop screaming and jump.”

“I am not screaming!” Jamie screamed, then jumped from the desk into a pile of fallen appointment folders.

The woman with the vertical mouth lunged after her. Elias jammed the oxygen tank into that mouth and shoved until metal shrieked against teeth. The creature bit down. The regulator assembly crumpled like foil.

“That was clinic property,” Jamie gasped.

“Bill her,” Elias grunted.

He drove his boot into the creature’s chest. It toppled backward, limbs flailing.

Outside, more shapes gathered at the glass.

They came out of the smoke in ones and twos, drawn by the light, by the sound, by the smell of terror and blood. Some still looked human enough for the mind to try excuses: accident victims, burn patients, neighbors covered in ash. Others had failed the disguise. A woman with antlers of exposed rib bone growing from her shoulders. A child-sized thing walking on its hands, its head twisted upside down and whispering in three voices. A naked man whose skin bulged with moving lumps as if rats crawled beneath it.

All of them began to speak.

Not together. Not nonsense. They chose voices.

“Elias, it’s cold.”

“Mara, open up, beta, it’s your mother.”

“Jamie? Jamie, honey, Dad’s scared.”

“Let us in.”

“We’re hurt.”

“You’re supposed to help.”

Every word struck where it was meant to. Mara went pale, her grip loosening on a child’s shoulder. Jamie made a broken sound and turned toward the door.

Elias threw the oxygen tank at the front entrance. It clanged against the metal push bar, startling everyone still living.

“Do not open the doors!” he shouted.

The command cracked through the clinic harder than the sirens outside. Jamie flinched. Mara’s eyes snapped back into focus.

“Those aren’t your people,” Elias said, though his own dead were speaking from the other side of the glass, though Darren’s voice threaded through the chorus like a fishing hook behind his ribs. “They’re bait.”

The delivery-uniform thing placed both palms against the door and smiled without eyes.

“You don’t know that,” it said in Darren’s voice.

The glass flexed.

Mara shoved the pregnant woman and the children down the hall. “Move!”

Jamie scrambled after them, dragging Mr. Lacroix by the armpits. The old man’s cheek hung open. He wheezed wetly but clung to consciousness with angry dignity.

“My cane,” he rasped.

“I’ll buy you a sword,” Jamie said, crying.

Elias backed down the hall last. The Broncos creature dragged itself after him on one working leg. Its broken knee bent backward, useless, but its fingers dug into the floor and pulled with eager patience.

Behind it, the front door’s first pane cracked.

A web of fractures spread under the delivery thing’s hand.

“Staff room!” Mara yelled.

The staff room was a glorified closet with a table, lockers, a sink, a fridge full of labeled lunches no one respected, and a rear service door that opened into the alley where medical waste pickups came on Tuesdays. Elias had no illusions about its safety. But the hall narrowed before it, and narrow places were where one exhausted medic could become a wall for a little while.

He slammed the staff room door after the others and rammed a chair beneath the knob.

“Furniture,” he said.

No one argued. Fear had burned away debate. Mara and Jamie shoved the table against the door. The pregnant woman—Tessa, Elias remembered, twenty-six weeks, husband deployed with the National Guard—pushed with one shoulder while keeping her other hand on her belly. The two kids, a boy and girl maybe eight and ten, moved chairs with solemn obedience. Mr. Lacroix slumped against the lockers, blood soaking his shirt.

The Broncos creature hit the door.

The chair jumped.

Tessa whimpered.

“It’s okay,” Elias lied automatically. He crossed to Mr. Lacroix. “Let me see.”

“Saw worse in ’Nam,” the old man said.

“You’re eighty-two. You saw Vietnam on TV.”

“Still looked bad.”

The joke came out with bubbles of blood. Elias pressed gauze to the torn cheek, checked pupils, pulse, breathing. Too much bleeding, but not arterial. Maybe survivable. If any definition of survivable still mattered.

A new sound came from beyond the staff room door.

Scratching.

Not the Broncos man. Smaller nails. Many of them. From the hall. From the ceiling. From inside the walls.

The girl child began to sob.

“Quiet,” Mara said, then softened instantly and crouched. “Hey. Hey, look at me. What’s your name?”

“Sofia.”

“Sofia, I need you to do a job. Can you do that?”

Sofia nodded hard.

“Hold your brother’s hand and don’t let him run toward any voices, okay? Even if it sounds like someone you love.”

The boy whispered, “Mom is outside.”

Jamie covered her mouth.

From beyond the barricaded door, a woman called, “Mateo? Mijo, open the door. Mommy’s bleeding.”

The boy’s face emptied.

He took one step.

Sofia tackled him around the waist. They went down between the table legs, kicking. Mara grabbed them both, clamping a hand over Mateo’s mouth as he thrashed with desperate strength.

“It’s not her,” Mara hissed. “Baby, it’s not her.”

Mateo’s eyes poured tears above her fingers.

Elias looked away because he could not help that wound. Not yet. Maybe not ever.

The red glow from the clinic monitors pulsed beneath the staff room door. With each pulse, his phone vibrated in his pocket, though the screen had gone black minutes ago. He took it out with blood-slick fingers.

The display was not cracked. It was not dead.

It showed red text on a black background.

WAVE ZERO INITIATED

Local population exposure: 87%

Biological compliance: failing

Soul retention: unstable

Survive until First Bell to qualify for allocation.

Elias stared at the words until they blurred. “Allocation?”

“Mine says something too,” Jamie whispered.

Everyone with a phone began pulling them out. All the screens bled the same red. Mr. Lacroix squinted at his flip phone in outrage.

“This government?” he demanded.

“No,” Elias said.

The certainty surprised him. He had seen governments fail in floods and fires and blizzards, watched command centers turn into rumor mills, watched agencies argue jurisdiction while people drowned in basements. Human disasters had fingerprints: incompetence, greed, panic, paperwork. This was too clean. Too intimate. It knew which voices to use.

The scratching in the walls stopped.

For one breath, there was only the wet rasp of Mr. Lacroix’s breathing and the distant chorus begging at the front of the clinic.

Then something knocked on the rear service door.

Three polite taps.

Everyone turned.

The service door was metal, painted beige, with a push-bar and a narrow reinforced window gone black with smoke. Elias had always hated that door because the lock stuck in winter.

Tap. Tap. Tap.

“Don’t,” Elias said before anyone moved.

A boy’s voice came through the door.

“Please. I’m not one of them.”

Jamie squeezed her eyes shut. “Oh God.”

“I’m hurt,” the boy said. “Please, there’s something in the alley.”

Elias approached slowly, oxygen tank gone, hands empty. His knees burned with every step. The reinforced window was at eye height. Smoke smeared the outside into gray and orange. For a moment he saw nothing.

Then a face rose into view.

A teenager. Latino, maybe sixteen or seventeen, hair shaved close on the sides, rain jacket torn open over a black T-shirt. Blood covered the left side of his abdomen and one hand was pressed hard against it. His other palm was flat on the door window. His eyes were brown, terrified, and painfully human.

Behind him, the alley flickered with firelight. Dumpsters burned. Ash fell like black snow.

“Please,” he said. “My name’s Nico. I came with my aunt. She was in there. She—she changed.” His breath fogged the glass. “Please, man. I can’t hold this closed.”

Elias’s gaze dropped.

The boy was not alone.

A shape crawled along the alley wall behind him, long and low, keeping to the smoke. It had too many elbows. It moved like a spider pretending to remember being human.

“No,” Mara said from behind him. “Elias. No.”

Nico saw his face change. “It’s behind me, isn’t it?”

The thing in the alley unfolded.

It had once been a person. Maybe several. Its torso was elongated, ribs split open and splayed like wet wings, and a cluster of faces pressed from inside the cage of bone. Their mouths opened and closed soundlessly. Its hands ended in long black needles.

Nico leaned harder into the door. “Please.”

Mara’s voice broke. “If you open that door, everything outside comes in.”

Elias knew that. The knowledge sat heavy and clear. One door. Seven people inside. One bleeding kid outside. A thing in the alley fast enough to shred them before he could get the door shut again.

Old arithmetic. Rescue arithmetic.

How many can you save?

How many must you leave?

The kind of math that had eaten him alive after Darren. After the apartment collapse. After the flood bus with the trapped children and the rising water. He had resigned because eventually every siren sounded like an accusation.

Nico’s hand slipped on the glass, leaving a smear.

“I don’t want to die out here,” he whispered.

Something inside Elias went very still.

Not calm. Not brave. Still, the way a splint made a broken limb still. He looked at the staff room: Mara holding two children like she could shield them from the world with her small body, Jamie trembling beside a bleeding old man, Tessa whispering prayers to the baby under her hands.

“Mara,” Elias said, “when I open it, pull him through by the jacket. Jamie, table back two feet. Tessa, get behind the lockers.”

“You stupid son of a bitch,” Mara said.

“Yeah.”

“If we die, I’m haunting you first.”

“Get in line.”

He reached for the door lock.

Outside, the creature lunged.

Elias opened the door just wide enough.

Nico fell in more than entered. Mara grabbed his jacket and yanked with a ferocity that tore one sleeve halfway off. Elias slammed his shoulder into the door as the alley thing struck it from the other side.

The impact drove him backward. Pain flashed white in both knees. The door slammed against the chain lock—thank God Jamie had thrown it earlier without thinking—and stopped with a gap of four inches.

A black needle-hand speared through.

It went into Elias’s left forearm and came out the other side.

For a second there was no pain, only pressure and astonishment. Then fire roared up to his shoulder. He snarled, not screamed, because the door was open and screaming would make everyone behind him weaker.

The hand flexed. Needles spread beneath his skin.

“Elias!” Mara shouted.

He grabbed the creature’s wrist with his free hand. Its flesh felt like wet clay wrapped around cables. The faces in its chest pressed toward the gap, whispering now in stolen voices.

“Let go, Eli.”

“You can’t save them.”

“You never save anyone.”

Nico lay on the floor, bleeding hard, staring up at Elias with horror.

“Close it!” the kid gasped.

Elias braced his boot against the wall, bit down until his teeth hurt, and wrenched his impaled arm sideways. Flesh tore. Blood splashed hot over the beige door. The needle-hand slipped halfway free.