"Didn't you see that? It's just a needle in the face. Mu Beiwan said lightly. She knew what Yun Zhao was suspicious, after all, this old man hadn't slept since he got sick. That's why he's so thin.

The hospital once tried all kinds of ways to let the old man sleep, but it had no effect at all. Even if the old man is given sleeping pills, he will wake up soon.

But just now Mu Beiwan just prick the old man with a needle, he fell asleep deeply, Yun Zhao was surprised at the same time, and at the same time, a hope for Mu Beiwan rose again.

"Miss Mu, I know you gave the old man a needle, but why was he able to fall asleep and immediately fall into a deep sleep?"

"Want to know?" Mu Beiwan smiled and said, "I pierced his sleeping hole." ”

Yun Zhao stopped talking, and he had only seen the word sleeping cave in martial arts novels. I thought it was all made up, but I didn't want to really have such a thing.

"This time, the old man can sleep for at least four hours, and you send someone to guard it. I'm going to do the experiment, hoping that my judgment is correct, otherwise things will be more troublesome. ”

"Okay, I'll go press the line."

After Yun Zhao finished speaking, he directly asked the nurse to guard the old man, and he himself took Mu Beiwan to find the dean and asked for a quiet room for her to experiment.

After entering the laboratory, Mu Beiwan put it into the experiment. Yun Zhao went back to the ward, and he followed the doctor, wanting them to check on the old man's condition and see if he was really asleep.

It was rare for the doctor to see the old man fall asleep, and when he entered the room, he was a little uncomfortable when he saw such a quiet.

"It's amazing that the old man is really asleep." The dean stepped forward to check it, and after making sure that the old man was asleep, he was very emotional.

The old man stayed in their hospital for as long as he wanted, and there was no time to sleep quietly. But today, he really fell asleep, what a surprise.

"How is this done?" The dean asked in surprise.

"Just now, Miss Mu stabbed in the old man's sleeping hole." Yun Zhao told the dean what Mu Beiwan had just told him.

After hearing this, the dean was stunned for a while, and only after a while did he react and said, "I see! ”

In order to let the old man sleep, they used sleeping pills before, but the effect was not very good. Moreover, you can't use too much, for fear of causing side effects to the old man.

Now, the method used by Mu Beiwan is quite good. It achieves the goal without causing side effects.

When the dean took the doctor to examine the old man, Mu Beiwan was busy in the laboratory alone. She first ground the medicinal herbs that Yun Zhao had found before into powder, and then added the old man's blood separately.

After more than an hour, the results are finally in. Seeing the results, Mu Beiwan finally breathed a sigh of relief. His judgment was not wrong, the old man was really poisoned, and it was not an ordinary poison.

This poison was called Gu poison in ancient times, and it is called parasite in modern times. However, this kind of thing like Gu can't be checked out with a machine, unlike other parasites, which can be seen when you take a film or something.

This is also the reason why the old man has been hospitalized for so long and has done so many examinations, but he can't confirm the cause.

With the results, Mu Beiwan took off her gloves, and then disposed of all the things used in the experiment, and then opened the door and walked out.