While the minions were discussing crossing the water with weapons, Zhang Han was observing the minions standing at the entrance of the cave on the other side, while lying on the side of the pool, smelling the smell of the pool water.

After all, in the pool water last time, there was a medicinal smell, and Zhang Han suspected that there should definitely be one in this pool water.

Moreover, judging from the ancient coins stored in the cave, it is the Hongwu period of the Ming Dynasty, which is hundreds of years away from now, and it is obviously impossible that a pool of water can not evaporate.

Water is not a watermark, how can it be preserved until now.

But this water just doesn't evaporate, and there must be a problem.

His intuition told Zhang Han that there must be some kind of drug that would not evaporate the water. Judging from the knowledge learned in textbooks, as long as it is soluble in water, it will delay the evaporation of water, such as salt and ethanol. Of course, it's just a delay, not a non-evaporation.

Of course, some chemicals can also be used, and the territorial water becomes colloidal, so that it is difficult for the water to evaporate. However, it is impossible to determine how many years it can be maintained, after all, theory is theory, and practice needs time to prove.

Zhang Han's actions were soon noticed. The eyes of the big guy fell on him, and even the minions who were about to go into the water stopped and looked at Zhang Han.

After sniffing for a while, Zhang Han was already able to determine that the medicinal smell in the water this time was slightly heavier than the medicinal smell in the water before, and it also had a little fishy smell.

In terms of medicinal materials, there are not many with a fishy smell. At this moment, Zhang Han's heart moved, and he thought of a medicine - Houttuynia cordata.

According to the book, Houttuynia cordata grows on the seashore and has a fishy smell on its leaves, which is probably due to the fact that it is irrigated by seawater all year round. In this world, land plants that can be fed by sea water are extremely rare, and H. cordata is not the only one, but it is estimated that it is almost the same.

Hovertuynia cordata is a rare medicine that can treat many ailments, such as colds, coughs, etc. The principle is very simple, because H. cordata is irrigated by seawater, which inevitably contains salt, and its own pharmacology is excellent in anti-inflammatory.

However, it has been recorded that when Hovertuynia cordata is used alone, it does not have any toxins. But once it touches mercury and celestial vanilla, it will turn into poison. If you take it, you will soon have abdominal pain, and then bleed to death, from poison to death, it will not take more than half an hour, it is an extremely powerful poison.

If not taken, it is just as toxic. Touching people's skin will cause a rash and then ulcerate, but fortunately, it is not incomprehensible, the most direct way is to perform surgery and scrape off the poisoned skin and flesh with a knife. In terms of medication, there is no way to do it in the book anyway. Because it contained mercury, with the medical technology of the time, it was not enough.

Mercury is mercury, and now, it can be synthesized with some chemical components. It's just that after mercury is highly toxic with celestial vanilla and sea cordata, it also needs many experiments to find a way to detoxify.

The water here can be preserved for a long time, and it is impossible to do without mercury. A small amount of mercury alone will not cause damage to the skin, but if it is combined with celestial vanilla and sea cordata, it will be unlucky.

Intuition told Zhang Han that the pool they had used to in the past was very likely to contain celestial vanilla. And in this pool, there is also Hearthy cordata.

As for mercury, it's tasteless. When it is combined with so many water ginseng, it is decomposed by the drug, and it is impossible to find it.

Realizing this, Zhang Han stood up and said, "I don't think it's better to go over first, and observe the situation of the person opposite......

"Doctor Zhang, what do you mean by that? Could it be that the water is poisonous? Miss Nie said a little worriedly.

"I'm so skeptical...... Mr. Zhang said.

"Not really...... The pool we crossed just now was not poisonous...... If the other party wants to poison him, he can go directly under the first pool, so why bother...... Qiu Yihan said.

"How do you know that the pool up in front of you isn't poisonous?" Zhang Han asked rhetorically.

"When we were doing the gong just now, weren't we able to be sure that there was no poison in the water?" Qiu Yihan said.

"If it's to separate the poison, it's hard to say. For example, these two pools, one of which goes down alone, are not poisonous. However, if both pools go down, it will be poisoned. Zhang Han said.

"There is such a ......," Qiu Yihan was dumbfounded.

For Zhang Han's medical skills, she has the least right to question.

Miss Nie hurriedly said, "Then what do you mean...... If both pools go down...... We're going to be poisoned......"

"This is my suspicion, and I can't fully prove it yet. Now, I can only observe the person on the other side first, whether there is any reaction on the body. Zhang Han said.

"If there was a reaction, what would it look like?" Miss Nie asked.

"First it was itchy and there was a rash...... Then, there will be ulceration...... Once it gets into the mouth, nose and ears, the consequences are even more serious...... "Zhang Han said.

"That's ......" Miss Nie immediately looked across and was about to ask loudly.

But before she could speak, she saw that the minion standing opposite her was picking his nostrils with his hands.

The other people here also looked at the minions, and after seeing this scene, they couldn't help but whisper: "Why is he picking his nose." "Could it be poisoned ......", "Can't ......", "This is too scary............ "

"Quiet! Quietly! Miss Nie immediately interrupted everyone's discussion and shouted, "How is your situation?" Are there any abnormalities on your body? Why pick your nostrils? ”

The minion on the other side said loudly, "My nostrils are so itchy...... Exceptionally itchy......"

"What about the body?" Miss Nie asked again.

"Body...... I haven't found ...... on my body yet," the minion shouted.

"Then you can observe it again......" Miss Nie exclaimed.

"Miss! I'm not going to be wrong, am I? The minion shouted nervously.

"It's hard to say now, you can observe and observe!" Miss Nie shouted.

"Yes, Miss!" After shouting this, the minions couldn't help it, and began to pick their nostrils hard.

After digging for a while, the minions shouted, "I—I've got a nosebleed...... It's a lot more ...... But it's so itchy...... I—Am I really poisoned......"

At a distance of more than ten meters, the big guy can see the action of the minions picking their nostrils at most, and they can't see him bleeding from the nose at all.

It was still Mr. Jiang who took out a pocket telescope from his arms, opened the protective cover on it, and began to observe.

After a few glances, Mr. Jiang said, "His nosebleed is so bad, it seems that it is not a ......."

Miss Nie took the binoculars and observed, then shook her head helplessly.

The minion on the other side, seeing that he didn't speak here, couldn't help but become anxious, and shouted: "Miss, save me, save me......"

Then he jumped into the water and prepared to swim back.

His body is poisonous, and according to Zhang Han's words, he can't be touched at all. Otherwise, as soon as you neutralize the toxins in your body, you will be finished.

So, Miss Nie shouted, "Don't go over, go back for me!" If you die, I'll die over there! ”

(End of chapter)