At Saint Mercy Hospital, the smell of bleach stopped meaning clean a long time ago.
By 2:13 a.m., the emergency department smelled like overheated lights, opened saline, wet coats, and blood that had been wiped up too fast.
Sera Vale stood at Trauma Bay Three with gloved hands pressed against a boy's shoulder wound while a resident shouted for another clamp he should have already had in reach.
"Pressure's dropping," he said.
"I can see that," Sera snapped.
The boy couldn't have been older than sixteen. Dockworker. Brought in after what dispatch called a cargo-loading accident down at Sector Nine. That was the official phrasing. But Sera had worked enough nights in Gravesend to know when paperwork lied before it was even printed.
The wound in his shoulder didn't look like machinery.
It looked like something had bitten him and torn a chunk away.
The boy's eyes fluttered. Skin cold. Sweat clinging to his forehead. He kept whispering the same thing through blue lips.
"Don't let them in."
Sera leaned closer. "Who?"
His gaze jerked toward the trauma room doors.
Then to the ceiling.
Then nowhere.
Heart monitor screaming, the resident cursed and reached for a syringe. Sera turned her head toward the charge nurse station. Too many voices. Too many stretchers. Too many people coughing behind masks.
The waiting area was overloaded.
Again.
Only tonight it felt different.
Not busy. Wrong.
A paramedic crew burst through the double doors wheeling another patient in restraints, a woman in her forties convulsing so hard the stretcher rattled. Her chart clipped to the blanket had the same sealed black transfer tag Sera had already seen twice tonight.
TEMP-QUAR // CHEMICAL EXPOSURE
Chemical exposure, her ass.
The woman's mouth was full of blood.
"Where is Isolation?" one of the medics yelled.
"Full," another nurse shouted back.
"Then make room!"
Sera released pressure just long enough for the resident to pack the wound, then stripped off one glove and snatched the transfer clipboard from the incoming stretcher. No sender listed. No real source. Just dock code, intake time, and a routing authorization stamped by a private contractor she didn't recognize.
Before she could read more, the hospital lights dipped.
Just once.
Everyone froze for half a second.
Then the backup power kicked in and everything came back uglier—red exit signs brighter, monitors harsher, shadows deeper.
Overhead speakers crackled.
"Attention Saint Mercy personnel. Temporary lockdown protocols are now in effect. Please remain at your stations pending city guidance."
That was all.
No explanation.
No supervisor follow-up.
Just enough to turn the room colder.
A security guard pushed through the hall toward Trauma, talking too loudly into a radio. "No, I'm telling you they came from the freight entrance. Why would they even be using freight tonight?"
A scream cut him off.
Not from the waiting room.
From behind the isolation corridor doors.
Everybody in Trauma Bay turned.
Then came the pounding.
Fast. Heavy. Repeating.
A patient monitor flatlined in one room, while somewhere else a child started crying.
Sera's resident looked at her. "What the hell is happening?"
Before she could answer, the boy on her table arched so violently his back nearly lifted off the bed.
His heart rate spiked.
Then spiked again.
Then went insane.
"Hold him down!"
The resident lunged in. Sera grabbed the boy's forearm—and instantly recoiled.
His skin was burning.
Not fever-hot.
Wrong hot. Deep tissue heat, like something cooking under the flesh.
The wound at his shoulder spasmed.
Something moved inside it.
The resident saw it too. "Jesus Christ—"
The boy's eyes opened.
They were not the same eyes.
No fear left. No pain. No recognition. Just a fixed, starving focus.
He ripped one arm free and sank his teeth into the resident's cheek.
The room detonated into motion.
The resident screamed, stumbling backward in a spray of blood. Sera grabbed a metal instrument tray and slammed it into the boy's head hard enough to knock him sideways. He hit the floor tangled in monitor leads, snarling now, trying to crawl with that same ruined shoulder as if pain no longer existed.
The isolation corridor doors burst open.
Two orderlies ran out first.
Then a woman in a hospital gown hit the ground behind them on all fours, shrieking so loud the sound seemed to vibrate in Sera's ribs. Another patient staggered through the doorway with half his throat missing, hands clawing at the air. Security finally drew a weapon, too late and too close.
The first shot deafened the bay.
The second shattered glass.
Then all of Saint Mercy broke.
Patients surged from the waiting area in panic. Staff screamed over each other. Someone yelled to seal the ward. Someone else yelled they couldn't. The red transfer-tag woman snapped her restraints and rolled off the incoming stretcher like she had been waiting for permission.
Sera backed toward the supply cart, chest heaving, eyes darting across blood, bodies, and collapsing order.
This wasn't contamination.
This wasn't exposure.
This was spread.
On the wall-mounted TV above admissions, the local news feed cut to an emergency city bulletin. No anchor. Just text over a black screen.
PUBLIC HEALTH ADVISORY. REMAIN INDOORS. EVACUATION PENDING.
Sera stared at it in disbelief.
Then the hospital intercom failed completely.
And somewhere in the chaos beyond Trauma, Saint Mercy's front entrance gave way.