Zhao ChuChu and Zhang Keke asked in unison.

Lu Xingdao was stunned. "Don't you know?"

"I don't know." Zhao ChuChu shook his head, slightly surprised, lowered his voice and asked, "is it true that there is a problem with the boxed lunch in the car?"

Lu Xinggui didn't understand Zhao ChuChu's words, so he just explained: "well, just now there was a female college student in our box. When she went to the toilet, she saw a figure outside the window. She was immediately stunned. Later, the stewardess carried her out."

"And such a thing?" Zhang Keke was surprised. "What happened later?"

Lu Xingdao then said, "later, the female student woke up and said that the figure she saw was very real. She said it might be a perverted peeper. She asked the steward to go to the toilet to check, but the check was fruitless."

"This... This is too strange." Zhang Keke wondered for a moment and guessed, "is it possible that the female student read it wrong? How could there be a figure outside the window? The train is moving. It's impossible for people to lie outside the window. "

Zhao ChuChu nodded in agreement. "Cocoa is right. Did the female student have an illusion? Can you say... "Zhao ChuChu lowered his voice," that girl student also had a box lunch in the car? "

Zhang Keke was shocked by Zhao ChuChu, but when he thought about it carefully, he felt that this guess was not impossible, so he asked LandStar orbit: "did the flight attendant find out what the reason was later? Did the female student eat the boxed lunch in the car before this happened? "

After looking at Zhao ChuChu and Zhang Keke, Lu Xingdao nodded cautiously, "yes, from the words of the female students, I found that she had a box lunch half an hour ago."

"Half an hour ago?" Zhao ChuChu exclaimed. He couldn't help looking back at the crying child in the box on the right and said word by word: "star track, I think our guess is right. There is a problem with the lunch box in the car, and it is likely that someone secretly drugged it."

Before Lu Xingdao could speak, Zhang Keke explained, "Lu Xingdao, something happened to us. Did you hear the child crying? The child has been quiet and clever since he got on the bus. Just now, he suddenly burst into tears. Later, the child's father said, "half an hour ago, the child ate the box lunch pushed by the dining car."

Lu Xingdao was surprised. "So the child had a problem because he ate a box lunch?"

"We guess so." Zhang Keke said seriously.

Lu Xinggui frowned into a mountain pile. "From noon to now, there have been four patients in our carriage. If you count the steward, there are five people. Five people have the same symptoms. They all have strange behavior after eating boxed lunch, then the problem should be on the boxed lunch." Lu Xingdao's eyes fell in Zhao ChuChu's eyes and said, "ChuChu, maybe you're right. The boxed lunch on the dining car may have been secretly drugged."

Zhao ChuChu's eyes were worried, "what should we do now? Orbit. "

"There are many people here. We'd better go back to the box first." Lu Xinggui said, holding Zhao ChuChu's hand tightly, "don't be afraid, I'm here."

The three hurried to the box. Unexpectedly, they found something strange on the way.

After the female student saw the figure of the toilet, Zhang Keke deliberately stopped to see if there was anything strange. Half a minute later, Zhang Keke ran out of the toilet in panic.

Seeing this, Zhao ChuChu tightened his heart and asked softly, "cocoa, what's the matter? What do you see? "

Zhang Keke swallowed his saliva and slowly opened his mouth. "Clearly, there are palm prints on the toilet window. It's very clear. I think... I think the female student may not have hallucinations."

Zhao ChuChu was shocked, "how is it possible?" After that, he looked sideways at Lu's orbit, "orbit, why don't we go in and have a look?"

Lu Xingdao nodded, "OK."

The two men opened the door and their eyes fell directly on the window. Sure enough, Zhang Keke was right. There was a palm print on the window, which was very clear.

"Clearly, the palm print is measured inside the window, not on the outside, but the female student said that the figure he saw is outside the window. In this case, the palm print may have nothing to do with the female student." Landsat orbit careful analysis.

Zhao ChuChu nodded approvingly, "yes, and the palm print is long and narrow. It should be a woman's hand. Maybe the palm print is left by the female student in panic."

Lu Xingdao didn't answer immediately, but stared at the palm print and said, "it's not necessarily a woman's hand. Look carefully, part of the palm print has disappeared, that is to say, when the palm print is printed, the person's hand should be very hot, but the glass is cold, and part of the palm print is water vapor, Then this part evaporated. "

Zhao ChuChu raised his eyebrow. "Do you mean that this palm print may also be left by a man?"

"That's right." Lu Xingdao nodded, thought for a moment and said, "the toilet has been locked by the stewardess since the female student, so why is there a palm print left? Has anyone ever been to this toilet? "

Zhao ChuChu wondered a little, "star track, how are you so sure that this palm print was left by the female student after the accident?"

"Because the first time after the female student's accident, I followed the steward to check the toilet. At that time, there was no palm print." LandStar explained.

Zhao ChuChu nodded and guessed, "so, is it the stewardess who came?"

"Impossible." Lu Xingdao shook his head. "The stewardess was also frightened at that time. She asked passengers to accompany her when locking the toilet, so I guess she won't come in again."

Zhao ChuChu bit his lips and thought for a while, but he still couldn't come up with an answer.

Zhang Keke on one side has slowed down at this moment. Of course, she heard the conversation between Lu Xingdao and Zhao ChuChu. Just now she didn't look at the palm print carefully, so she was startled. Now she calmed down and had a new guess.

"You two listen to me." Zhang Keke's face was serious. "I think this palm print may have been left by the person who applied the medicine. He was afraid that the place of the incident would leave any clues, so he came to check secretly later. Unexpectedly, he left his own trace."

Zhang Keke's guess was not unreasonable. Zhao ChuChu glanced at the palm print. She found that there was a short blank on the middle finger of the palm print. It should be that the party concerned wore a ring on the middle finger.

"Only the steward and the conductor can open the toilet door." Lu Xingdao affirmed, "so it seems that the person who left this palm print should be among these people."