The smell of disinfectant mixed with rust hit him in the face, and Mou Xuan pushed open the glass revolving door of the Seventh People's Hospital.

Administrator Zhou stood beside the bulletproof SUV and adjusted his goggles for the third time. The stainless steel thermos cup made an impatient tapping sound between his fingers.

"The third search team came here last fall." Administrator Zhou kicked away the wheelchair blocking the elevator entrance, and the metal wheels hit the wall with a harsh echo. "They even counted the shrouds in the morgue."

Mou Xuan's tactical boots rolled over the glass shards on the ground, and the light blue afterimage of time projected by the watch was flowing on the wall.

In the footage from three days ago, three figures wearing gas masks were loading boxes of saline solution onto a truck. The scorpion tattoo on the back of one of them's neck was distorted into a weird shape in the afterimage.

"Negative third floor." He suddenly turned around and pressed the elevator button. There was a subtle sound of gears biting under the metal plate. "CT room, third operating room, southeast corner ventilation duct."

Administrator Zhou opened the collar of his protective suit to let in some air: "Not even a mouse can get into that operating room."

The feeling of weightlessness as the elevator goes down causes ripples in the afterimage of time.

Mou Xuan stared at the flickering red light on the floor display screen. The footprints left by the group in the CT room three days ago suddenly turned to the fire escape - they missed the secret door hidden behind the disinfection cabinet.

The moment the metal cabinet door was pried open, the true appearance of twenty sealed boxes labeled "Radioactive Contamination" was revealed.

When Nurse Qian lifted the top foam board, thirty cobalt-60 radiotherapy injections packed in lead tubes were emitting a cold blue light. Medical student Sun ran his trembling fingers over the production date on the side of the box - it was exactly three days before the virus outbreak.

"Be careful!" Mou Xuan grabbed the back collar of Nurse Qian's protective suit and rolled to the corner. Three poisoned crossbow arrows were nailed to the place where she had just stood.

A nightgown made of mutant bat skin flashed across the top of the CT machine, and the scorpion tattoo on the chest of the leading attacker glowed fluorescent green in the infrared night vision goggles.

Pharmacist Zhao pushed over two boxes of anesthetics to form a shelter, and lavender smoke rose up with the crisp sound of glass ampoules breaking.

Mou Xuan tore off the filter layer of the protective mask and caught a glimpse of the third attacker changing the magazine in his gradually blurred vision.

"Nurse Qian, the nine o'clock vent." He swung out the climbing hook from his tactical belt, and the stainless steel hook accurately caught the fire sprinkler head on the ceiling. "Medical student Sun, prepare the nerve paralysis agent in the number three emergency kit."

As the fourth attacker leaped down by stepping on his companion's shoulder, a tourniquet woven from mutant vines suddenly wrapped around his ankle.

The veins on the back of Nurse Qian's hands bulged as she pulled the counting knot, and the sound of the ninety-eight plastic beads colliding with each other was like some kind of ancient spell.

Mou Xuan broke the attacker's wrist bone at the moment when the afterimages of time overlapped. At the moment when the opponent's poison sac hidden between his teeth was picked up by the saber, he saw the dark blue tissue fluid oozing out of the man's collarbone - exactly the same as the drug stains left on the cuffs of Shen Yao's protective suit.

As the explosion-proof truck drove away from the hospital, the sudden explosion of fire in the rearview mirror made Administrator Zhou's pale face flicker.

Mou Xuan stroked the new bullet holes and scratches on his tactical vest. In the sealed boxes that were supposed to transport anesthetics, five unopened hemodialysis machines were making slight collision sounds as the car body was bumping around.

Nurse Qian was counting the poisoned arrowheads seized. The shape of the barbs on three of them reminded her of the mutant pangolin dissected last week.

Medical student Sun suddenly pointed at the tablet and screamed. The two hundred extra insulin refrigerated agents in the supply list showed a strange dark blue mark on the inventory statistics table.

As the truck turned, Mou Xuan pressed his aching temple.

Amid the lingering buzzing sound of the time power, he clearly heard the slight sound of Chen Yao's protective mask slipping off - that was a scene that would never have happened when they parted this morning.

When the truck braked suddenly, the tires left two scorch marks on the asphalt road. Mou Xuan's hands, wearing tactical gloves, pressed on the car window, leaving five clear water mist marks.

Chen Yao's modified motorcycle lay across the middle of the road. The hair exposed from under the protective mask was stained with ice crystals, and half of a mutant bat's fang was stuck on the shoulder armor of her combat uniform.

"The hail warning from the Southeast Weather Station..." She took off the frosted breathing valve, and the white air she exhaled condensed into an arrow shape in the air, "It's four hours earlier than expected."

The lid of the thermos cup in Manager Zhou's hand rolled under the seat.

The overpass they had just passed three hours ago was now covered by a layer of blue and white ice in the rearview mirror, and the veins of the mutant vines throbbing under the ice shell looked very much like human blood vessels.

Nurse Qian suddenly covered the list of supplies and screamed. The dark blue mark was eroding the paper at a speed visible to the naked eye.

The moment Mou Xuan kicked open the car door, the afterimage of time reflected three human figures on the ice.

Behind the isolation pier that was supposed to be empty, five crossbowmen stepped on the cracks in the ice and came over. The scorpion tattoos on their collars glowed like phosphorescent fire.

The heel of Chen Yao's military boots hit the motorcycle's fuel tank hard, and the sound wave disperser hidden in the exhaust pipe suddenly sounded a high-frequency sonic boom.

“Look down!”

Mou Xuan's warning and the Molotov cocktail thrown by Shen Yao collided in the air.

In the exploding flames, Medical Student Sun finally saw that the dark blue liquid at the attacker's clavicle was corroding the ice surface - exactly the same as the insulin mark that had disappeared on the supply list.

While Nurse Qian's hemostatic forceps were pinning down the sole of an attacker, the nerve paralytic prepared by Pharmacist Zhao was emitting purple smoke on the surface of the ice.

Mou Xuan pulled Chen Yao's tactical vest and rolled under the truck chassis. Three poison-tipped crossbow arrows rubbed against the bulletproof steel plate, sparks flew, and pierced the thermos cup lid that Administrator Zhou had just picked up into a sieve-like shape.

"You violated the rules and activated the weather station's emergency passage." Mou Xuan's thumb wiped the ice residue on Chen Yao's mask, and the respirator display reflected the fine beads of sweat on the tip of her nose.

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