The little boy watched Zhao Ji take away Master Zhao's body without saying anything.

On the other hand, Zhao Ji called the head of the Imperial Medical Bureau and asked him to see what happened to Master Zhang.

The director of the Imperial Hospital first reached out and pressed Master Zhang's pulse, and then looked into Master Zhang's eyes.

Then he took out a silver needle and pricked it into several acupuncture points, observing Master Zhang's reaction.

"It looks like he's in a coma, but the coma is quite severe. It can be understood as a deep sleep, as if he was drugged."

Zhao Ji frowned slightly. He was so surprised that he was drugged in the Taoist temple and there was no sign of struggle at all.

It was obvious that only someone Zhang Zhenren was very familiar with could do such a thing.

"Is there any way to wake him up?"

Hearing what Zhao Ji said, the head of the Imperial Hospital frowned slightly, and then said, "I can only try my best. Whether I can remove the drug in his body depends on fate."

Zhao Ji nodded: "Go ahead and try, as long as the person is still breathing."

The head of the Imperial Medical Bureau took out a silver needle from the side and inserted it directly into the acupuncture points on Zhang Zhenren's body.

Even someone like Zhao Ji, who knew nothing about medicine, could see that the director of the Imperial Medical Bureau had hit people's vital points several times.

But the magical thing is that there was no other reaction. Instead, Master Zhang's body began to emit a faint fragrance.

"This is Master Zhang's body, starting to excrete toxins. But I seem to have seen this kind of reaction in medical books... Let me think about it!"

The head of the Imperial Hospital thought for a long time, and suddenly an idea flashed in his mind. He then said, "I know this is a reaction to what I ate... It's Wu Shi San!"

"It was mentioned in medical books before that if you take a large amount of Wu Shi San, your body will feel hot and smell strange in order to disperse the medicinal properties."

Zhao Ji's eyes widened in shock when he heard this: "Master Zhang is eating it himself? Isn't it known that this kind of thing is addictive?"

It's really strange. Zhao Ji and the head of the Imperial Medical Bureau had observed Master Zhang before, and they concluded that Master Zhang himself would not touch this thing.

Now, Master Zhang collapsed in the Taoist temple because he took a large amount of Wu Shi San.

This in itself is a very strange thing.

Or maybe it was not something that Zhang Zhenren took himself, but was forced to drink by someone else.

So what is the purpose of the person behind this?

As soon as Zhao Ji raised his head, he made eye contact with the head of the Imperial Medical Bureau. It was obvious that they both had the same idea.

"Go back to the Taoist temple!" After Zhao Ji shouted this, he immediately returned to the Taoist temple with the secret guards.

However, the Taoist temple was deserted at this time. While asking the secret guards to investigate the situation, Zhao Ji once again came to the secret compartment that he had discovered last time.

When the secret compartment was opened, sure enough, the porcelain bottle inside was gone.

But maybe the person left in a hurry, there was a light layer of gray powder in the secret compartment.

Zhao Ji collected some of these things using rice paper.

It was handed over to the head of the Imperial Medical Bureau who came in later.

The head of the Imperial Hospital looked at the powder that Zhao Ji gave him, touched it with a silver needle, and then picked it up and took a sip.

Then he spit the stuff out.

"This thing is exactly the Five Stones Powder, and its purity should be quite high..."

The words of the head of the Imperial Hospital completely confirmed Zhao Ji's guess, which made Zhao Ji feel a little regretful.

That was when he first realized that there was something fishy going on with Master Zhang and came to the Taoist temple to investigate.

In fact, the most crucial thing has been found.

Originally, there was an ordinary porcelain vase placed in this secret compartment because it looked too ordinary.

As a result, Zhao Ji ignored the powder in the porcelain bottle. At that time, Zhao Ji didn't know about the Wu Shi San, and subconsciously regarded the gray-black powder in the porcelain bottle as ordinary soil for growing flowers.

But I never thought it was something as powerful as Wu Shi San.

The head of the Imperial Hospital said: "Now it seems that Master Zhang is in a coma probably because of these things. He was able to sleep so deeply, and he must have taken this high-purity Five Stones Powder!"

Zhao Ji frowned and said nothing.

At this time, the secret guard also came back: "According to the palace maids and eunuchs outside the Taoist temple, there have always been only the little boy and Zhang Zhenren living in this Taoist temple. Although the eunuchs and palace maids also go in to clean on weekdays, they only do so at fixed times."

"This rule is tacitly approved by the emperor. Not long before we arrived today, the little boy took the pass awarded by the emperor and left the palace with a bottle in his arms. I have arranged for someone to track him down. According to the boy's pace, he should not have left the palace yet!"

Zhao Ji and the head of the Imperial Hospital looked solemn. Zhao Ji sighed and said, "What if the boy knows martial arts?"

"If this little boy knew martial arts, he should have left the palace by now!"

The secret guard had never thought of this possibility, but since Zhao Ji brought it up, the secret guard knew the result after a quick estimate in his mind.

Sure enough, after a while the secret guard who went to the palace gate came back.

"My subordinates were incompetent. They failed to stop the boy at the palace gate. Moreover, the boy disappeared after he left the palace gate. No one saw a man dressed as a Taoist child again!"

Although Zhao Ji and the director of the Imperial Medical Service had already anticipated this result, they still felt a little regretful after hearing the report from the secret guards. It could have been done earlier.

The head of the Imperial Hospital comforted Zhao Ji and said, "No one would have thought that this little boy would do this. Normally, this little boy disguises himself too well. When this little boy came to my Imperial Hospital to get medicinal materials, he also looked innocent and ignorant!"

"At that time, several medical boys in the Imperial Hospital thought that this little boy knew nothing, but they never thought that this little boy should be the one who knew the most."

Zhao Ji sighed.

Just now in front of Master Zhang's sickbed, Zhao Ji and the director of the Imperial Hospital sorted out the clues and found the biggest suspect, who turned out to be the naive little boy who seemed ignorant in the Taoist temple.

Only this little boy can come into contact with Master Zhang, and will not allow Master Zhang to resist in any way.

In addition, when Master Zhang disappeared, the little boy was the only one left in the entire Taoist temple.

It would be impossible for anyone else to escape the eyes of the secret guards and re-enter the Taoist temple in broad daylight.

In addition, when Zhao Ji remembered that when he was about to take Zhang Zhenren's body away in the Taoist temple just now, the little boy's expression seemed to stiffen for a moment.

Therefore, the head of the Imperial Hospital and Zhao Jicai concluded that the little boy was the murderer behind the murder of Zhang Zhenren.