After listening to Li Junhao's explanation, Tao Xi suddenly looked at Zhang Huiyi's feet, the space system is so good, after he made such a little sense, Tao Xi quickly understood what was going on.

"Like Hui'er, you walk around the waterhole, and if you look closely at the refractive power of the water, you will find that there is a difference in the refractive power of one or more places, and the water in that place hides something inside the stake, and in short, one person can pass through."

After thinking about it, Han Chen restored the principle according to the knowledge he had learned, plus some clues on the scene.

After listening to this, Tang Lei suddenly realized, "Is this the same principle as the stone on the wall before we entered the door?" ”

"Yes, although the two seem to have nothing to do with each other, the basic principle is to use the refraction of light."

To say how Han Chen found out so quickly, and thanks to his spatial ability, he is extra sensitive to space, Han Chen thought of this, and looked at Tao Xi, she should have thought of it too.

Li Junhao suppressed the surprise in his heart, this group of people seems to be able to understand the truth a little bit, if he relies on rich book knowledge and experience, then they all rely on their brains.

It's really easy and stressful to stay with this group of people, everyone is so strong, he can't be left behind, right? The name "Know-it-all" is not called in vain.

"I'm surprised that you found out so quickly, after all, it's designed to be hidden, and many people can't see it." After Li Junhao finished speaking, he observed the light around him, and finally looked at a ghost fire lamp.

It is said that it is a ghost fire lamp, but it is actually a blue open flame, and the moment the gate is opened, the lighthouses in all corners are lit, and in the past, it may be thought that there are ghosts, but now that science is so advanced, people have long known the principle of it.

The ghost fire is actually phosphorus fire, phosphorus and water react together to produce phosphine, and this blue flame is the flame when phosphine burns.

The designer made a mechanism between the lighthouse and the gate, and the moment the gate opened, the scarce water flowed into the lighthouse and fused with the phosphorus that had been placed inside, thus illuminating the entire hall.

And now what Lee Jun-ho has to do is to find out which ray of light makes everyone's sight have an illusion, as long as the light is extinguished, the refraction will naturally be gone.

In this way, there is no need to be blind with both eyes, and he walks away by feeling, but Li Junhao is becoming more and more curious about Zhang Huiyi in his heart, even he can't find out where the disturbed stake is so quickly, Zhang Huiyi seems to have found it easily.

And according to the information he collected, Han Chen actually said very little in front of people, but when he faced Zhang Huiyi, he talked a lot, and the part that was more was answered knowingly, as if he was specially explained to Zhang Huiyi, is Zhang Huiyi's brain very stupid?

Li Junhao couldn't help but recall the first time he saw Zhang Huiyi, no matter who he saw, he was hilarious, so Zhang Huiyi actually really had a problem with her brain? She was the simplest person he had ever seen in the last days, but after personal contact, he had a different view of her.

After cutting off the water source of the lamp, due to the lack of water, the lamp was soon extinguished, and Lee Junhao looked back again, and the wooden stakes in the water were all visible.

"Oh my God, even if you explain it again, I still think it's amazing, it's like in martial arts!" Lin Han sighed, seeing the appearance of the stake with his own eyes, it was very enjoyable.

"That's not it, anyway, I don't understand your big truths, I just know that my sister found the stake at once, sister, you are so amazing!"

Zhang Yao made no secret of his praise for Zhang Huiyi, and her mother said that she would praise her often.

When Zhang Huiyi heard this, her heart fluttered, and she walked back and forth on the stake like a trick, but she didn't go ashore.

"Okay, Hui'er will go over when she has had enough, what if she falls? I'm not going to save you. Han Chen pretended to be serious and said.

As soon as she heard that she couldn't save her, Zhang Huiyi immediately stopped jumping and arrived at the coffin in three or two steps.

The central place is too small, and only a few people came, Li Junhao, Han Chen, Tang Lei and Zhang Huiyi.

Tang Lei: "Do you really want to open it?"

"Let's go, we still don't know which person in history is lying here." Lee Jun Ho said.

Han Chen took Zhang Huiyi's hand and stood aside, Zhang Huiyi always wanted to pick the gold on the coffin, but Han Chen had no choice but to grab her.

Not to mention the professional steps, it took Li Junhao an hour to open this coffin, and no one else understands this, and the help is a small favor.

After Zhang Huiyi was stopped by Han Chen a few times, she was no longer attached to that bit of gold, and just when they were all in Li Junhao's movements, she bent down and looked at the bottom of the coffin alone.

There was a crack in it, and the water flowed through that crack.

"I suspect there are no bodies in there." Han Chen said suddenly.

Tang Lei agreed: "I also prefer this, otherwise the water will not make sense."

Li Junhao listened, this is contrary to what he has learned, it's not impossible, but where is the body not put in the coffin? "Let's open it first, and when it is opened, you'd better avoid it, because there will be turbidity."

"Yes."

Han Chen and the others left the central place, leaving Li Junhao alone by the coffin, and after waiting for a while, Li Junhao pushed the coffin lid open, but from their point of view, his face was not very good.

Lin Han shouted, "What's wrong?"

"Come and see for yourselves."

……

"So this is actually another secret passage? And it's a secret passage that can't get down? Lin Han said dumbfounded.

When the coffin was opened, there was a long, narrow staircase passage, but the water outside kept seeping in and down the staircase, which explained why the water was flowing into the coffin.

"At this time, we have to rely on the green tree." Tang Lei shrugged, "Qingshu, how is your poison research?" ”

Evergreen only cares about the water, and when everyone else is looking for clues in the main hall, he is indifferent, and in a place that does not affect the 'traffic road', he starts researching.

Seeing that someone cared about his research project, Evergain suddenly became interested.

"The poison in this water is naturally formed, according to the geological landform plus some environmental factors, and then there are parasites that live in the shadows all year round, etc., and gradually evolve into a complex bacteria, which is what you call poison."

"Can you solve it?" Han Chen asked.

"Uh...... For the time being, I have only studied its composition and source, and the subsequent steps can only be developed through professional instruments back to the laboratory. ”

Lin Han rolled his eyes, "What do you want!" ”

"But as long as you don't touch the water." Evergain said with a serious face.

Lee Junhao said: "On the staircase, it is difficult to ensure that the water does not splash on yourself."

Evergreen was helpless, he couldn't help it, don't look at him.

"Let's go down one by one, be careful, stay away from each other, and cover the exposed skin tightly." Han Chen said.