When I'm on the night shift, all the department heads can't sleep.

As soon as the bus dispatcher finished saying, "He gave a piece to a child next to him," Ma Hao immediately switched to speakerphone.

"Tell me where the car is first, don't beat around the bush."

On the dispatch side, it seemed like they were flipping through several dispatch orders at the same time, the pages rustling as they were turned.

"Heading west on Chengnan Second Road, just past Laoqiao Station. It's the last bus, and there aren't many people on board. The driver said there are about ten passengers left."

"Have the driver pull over to a safe spot and turn on the hazard lights," Sun Zhiqiang said. "Explain the danger to them first, and ask them what they ate. If they really need to leave, they should leave their phone number and destination, and wait for the ambulance and local police station to arrive. Is the 120 command center on the line?"

"I'm listening. The next vehicle has been dispatched and should arrive at the west entrance of the old bridge in eight minutes."

Lin Ye glanced down at the list.

The girl from Dongyuan has arrived at the hospital.

The stubborn middle-aged man who had just been talking tough has entered the red zone.

The person in blue overalls is being transferred to the emergency room.

Only the bus section remained, with the words "Last Bus" written on it.

The speakerphone quickly switched to the driver's voice. The driver was not young, and he was panting as he spoke. Someone next to him asked impatiently why he had stopped driving again.

"Doctor, I've moved to the side. The old lady is in the front row, and the yellow bag is next to her feet. She said she only shared a piece with the child next to her, and that child is sitting with his mother."

Sun Zhiqiang moved closer to the speakerphone.

"Don't let her take the bag anymore, and don't throw away the rest of the food. Have the child's mother check her lips now, and then ask the child if she feels any tightness in her chest, dizziness, or nausea."

The driver turned around and shouted it again.

Someone in the back row stood up first, and then someone in the front row asked the same question. The driver repeated himself, trying to suppress his anger, but people still rushed to speak.

My child ate a small piece.

"Why are you parking so late at night? I have an early shift tomorrow."

"Master, don't scare me."

The old lady followed along in the front row, explaining, her voice filled with panic and grievance.

"I just saw the kid was hungry, so I picked up a piece of beef. So many people were buying from that stall, how could anyone know it wasn't safe to eat?"

Upon hearing this, Nurse Zhao immediately turned to a new page in the registration book.

"Their hearts are kind, but the things they possess are not good."

The driver shouted twice, "Don't get out of the car yet," and people in the back seat were still urging him to.

"I'm just catching the last bus, why can't I leave yet?"

The child's mother panicked first.

"Open your mouth, hurry up, let Mom see."

The old lady in the front row explained, "I really didn't know, I only picked up the food because I saw the child was hungry."

In a corner of the forest, the pale blue lettering lit up again.

[Risk Clue: The last bus.]

[Follow-up Question: What else has the child eaten?]

[Possible clues: the child's mother, the elderly woman.]

Lin Ye stared at the speakerphone and suddenly interrupted.

"Don't ask the other passengers on the bus yet, ask about the child's situation first."

Sun Zhiqiang turned his face to the side, and Lin Ye pointed to the speakerphone.

"Don't just listen to the old lady's account. Ask the child's mother how many bites he actually took, and whether he ate anything else."

Sun Zhiqiang immediately said to the driver, "Did you hear that? Ask the child's mother first."

The driver shouted from inside the vehicle, "Mom, the doctor asked how many bites the child ate just now, and what else he ate?"

There was a few seconds of silence at the other end of the carriage before the child's mother answered first.

"He said it was salty, so I gave him a couple of sips of water."

Sun Zhiqiang answered the phone.

"Stop giving the child water and don't try to induce vomiting. Let the child sit up with their head slightly turned to the side, so that they won't choke if they do vomit. Now check their lips."

When the child's mother spoke again, she was clearly nervous.

"There was a little gray on your lips. The light was dim just now, so I didn't see it clearly."

He tapped the edge of the table with a series of rapid, light taps.

Nurse Zhao turned around and glared at him.

"Don't break your hands, you still have work to do later."

He didn't respond to Nurse Zhao's question, but instead asked, "Did the child say his chest felt blocked?"

The driver followed up with questions from inside the car.

The child's voice was very faint through the phone.

"I feel a bit bloated, Mom, I feel like throwing up."

The passenger who had been urging the driver to leave coughed, unable to utter the words "Are you leaving or not?" that he had been saying earlier.

Sun Zhiqiang told the 120 command center: "At the west entrance of the old bridge, check on the child and the old lady first. The child has eaten; his lips are grayish, he says he feels a tightness in his chest, and he feels like vomiting. The old lady may have eaten as well; keep an eye on the yellow bag and don't let anyone else touch it."

The ambulance responded very quickly.

"Understood. The crew will bring oxygen and monitoring equipment. When we arrive, we'll check on the children and the elderly first, and also keep an eye on the yellow bags."

The phone call hadn't ended when the sound of stretcher wheels hitting the paving stones came from the entrance to the red zone.

A pair of blue overalls was pushed in.

The official bed had already been given to the stubborn middle-aged man. Nurse Zhao had someone move the stretcher next to the red zone monitoring area, connect the oxygen and leads, and the bed would be allocated later for the second line.

The paramedic handed over the transfer form.

"I'm 37 years old. I ate cold beef salad. I felt chest tightness and nausea, and I answered slowly. The half-box is still at the entrance of the residential area, the security guard is watching it, and I've already taken a picture."

Sun Zhiqiang only glanced at it.

"Put the patient on monitoring first. Check the blood gas analysis for oxygenation, electrolytes, and lactate levels. Have the pharmacy prepare methylene blue, and don't delay getting the results back."

The second-line emergency team members are already standing next to the stretcher.

"I'll oversee the adults, and the pediatricians will handle the children."

As the blue overalls were pushed past, he was still thinking about that half-eaten box of vegetables.

"That's evidence; I haven't asked them for a refund yet."

Ma Hao put the wristband on him, unable to resist saying it.

"Brother, you're panting like that, and you're still thinking about getting a refund?"

The man in blue overalls arrived a bit late.

"I bought it."

Nurse Zhao smoothed out the wristband, preventing him from turning his head again.

"Don't worry, someone's guarding the box. Catch your breath first, don't get lost."

The bus driver called out again from the triage desk.

"Doctor, the old lady said she ate two pieces herself. She's feeling dizzy and her hands are numb now."

Sun Zhiqiang immediately asked, "Is she still conscious? Ask her to tell us what day it is today, and see if she can answer that."

The driver relayed a few words and then returned to the hands-free speaker.

"He answered slowly, but he's still conscious. The child just vomited, and the child's mother is crying."

Sun Zhiqiang continued, "Besides the children, did the old lady eat it herself?"

The driver replied quickly.

"Yes. The old lady said she only gave the child one piece, ate two pieces herself, and didn't give any to anyone else."

Sun Zhiqiang looked at Lin Ye.

Write it down.

Lin Ye added a line: "Two people ate there: a child and an old lady."

Not long after, the 120 ambulance arrived at the west entrance of the old bridge.

The driver's voice was noticeably hoarser than before.

"Doctor, the paramedics are on board. The child and the old lady can get off now."

Sun Zhiqiang did not hang up the phone immediately.

"Where's the yellow bag?"

"He's still in the front row, next to the driver's seat. The paramedics said they're waiting for the local authorities and supervisors to come and hand him over."

Sun Zhiqiang then looked at Lin Ye.

"Are there any items in the takeout that weren't clearly listed?"

Lin Ye read the temporary list from beginning to end.

The child from the family in Dongyuan has arrived at the hospital, and the leftover food and chopsticks have also been brought to the emergency room.

Wearing blue overalls, he's in the red zone, with half a box of vegetables still at the gate.

The children and the elderly woman on the bus have been handed over to the ambulance service; the rest are waiting for the handover next to the driver's seat.

"there is none left."

Ma Hao bit the pen cap against his lips and asked vaguely, "Is this considered the end of the chase?"

Nurse Zhao yanked the pen cap out of his mouth.

"You dare to bite a pen from a hospital? You really have no taste."

Ma Hao quickly spat out a curse.

Lin Ye looked at the last panel again, but didn't respond to Ma Hao's words.

Sun Zhiqiang then hung up the phone with the bus driver.

"Write it clearly, and make sure the bus information is clear too."

Lin Ye finished writing the last square and realized that his palms were covered in sweat.

(My palms were sweaty too...)