At this time, other netizens in the live broadcast room understood what was going on.

At the same time, He Hongbo and the others also secretly breathed a sigh of relief in their hearts.

Since it's phosphorus fire, it's harmless.

But then again, this white phosphorus also has a good antiseptic effect, and it seems that the ancients smeared it on the suspension bridge, which made the suspension bridge in front of it still not rot after thousands of years.

Aware of this situation, several people regained their confidence.

This not only confirmed that the phosphorus fire was harmless, but also verified that the suspension bridge in front of them was well preserved and should allow them to pass safely.

But in the face of this...

Is it really for antiseptic use to apply white phosphorus to a suspension bridge?

Seeing everyone's relieved looks, Zhang Yingxue always felt that something was wrong.

People during the Qin Dynasty discovered white phosphorus?

It may be possible.

They also know that white phosphorus can be preserved?

It also makes sense.

However, she always felt that there was something wrong with such a suspension bridge in front of her, and she seemed to have seen this scene in front of her somewhere.

You know, the Mu room is the last insurance for the owner of the tomb.

Regardless of the tomb, the owner of the tomb did not want his tomb to be stolen.

But since the owner of the tomb can spend a lot of money to hollow out the underground and dig out such an underground mountain stream, but he just made such a suspension bridge?

Isn't this just the right time for tomb robbers to get through?

If something goes wrong, there must be a demon...

In fact, Zhang Yingxue is not so naïve, on the contrary, she is very thoughtful like her brother.

So, even if no one else noticed the abnormality, she smelled danger.

"Yingxue, what do you want?" At this moment, He Hongbo saw that she was still hesitating, and couldn't help but ask.

At the same time, Professor Wang was also puzzled.

They have all confirmed the safety of this suspension bridge, why are they not in a hurry to get there?

"Something is wrong."

But at this time, Zhang Yingxue explained: "The owner of the tomb built the tomb to prevent theft, how could he make a special suspension bridge for us to pass?" ”

What?

Hearing her doubts, several people present also frowned violently.

They didn't think much of it because they were so excited before, but now that they think about it, it's really like that.

Unless it's a trap!

"But..."

Seeing this situation, He Hongbo couldn't help but say: "But if we don't pass over the suspension bridge, there is no other way to go." ”

Thinking of this, He Hongbo proposed: "It's better for a few of us to go first, and you and Miss Yang are behind, so it may be safer." ”

That's right.

The suspension bridge looks sturdy and should be able to support the weight of a person.

Hearing this, Yang Shurou stopped Zhang Yingxue and nodded by default, and then a security guard walked up cautiously under He Hongbo's instructions.

This is not He Hongbo deliberately sending people to death.

It's just that they're too old, and if something happens, they don't have time to save themselves.

In this case, the security guard cautiously walked up to the drawbridge, and within two steps he was lit up by a blue phosphorus fire beneath his feet.

Boil!

Blue phosphorus fire spread down the pipe of his trousers, enveloping the lower half of his body in flames.

It's an amazing feeling.

Even though he was enveloped in flames, he still couldn't feel any heat, let alone burn his clothes.

For a while, as he took two steps forward, several people behind him were hanging, and the netizens in the live broadcast room also quieted down and didn't dare to disturb.

"Professor He, it seems to be no problem!"

Seeing that he had already taken more than a dozen steps, the security officer turned back to report to He Hongbo.

Seeing this scene, netizens in the live broadcast room finally breathed a sigh of relief and launched a barrage one after another.

"I'll go, there's such a magical thing!"

"I want to give it a try!"

"That's right! Phosphorus fire is a cold flame, and many magicians will use it as a prop when performing, so there is no danger at all! ”

"Don't argue yet, am I the only one who thinks something is wrong?"

At this moment, the netizens in the live broadcast room were all different, but they all subconsciously didn't dare to disturb them, and seeing that the security personnel were fine, He Hongbo and the others were also relieved.

But then, they saw that Zhang Yingxue and Yang Shurou had not moved for a long time, and they were all frowning and thinking about something.

Seeing this scene...

"What's wrong, Yingxue?"

He Hongbo couldn't help but ask, but Yang Shurou looked at the security personnel whose lower body was wrapped in blue phosphorus fire, but her brows kept frowning.

She always felt that something was wrong.

First of all, when the ancients built tombs, how could they make a shortcut to the tombs?

Secondly, she always felt that the situation in front of her was a little familiar.

I still remember that when she was a child, she and her brother once passed by a suburban farm, and at that time she saw a lot of blue phosphorus fires floating in the wild.

She was too young at the time to think it was a ghost fire.

But at that time, her brother explained to her that it was the so-called phosphorus fire, and if a large number of eggshells were piled up outside the farm, the morning wind would form a phosphorus fire floating in the air after a chemical reaction.

Moreover, the elder brother also explained to her that this situation is dangerous.

Because, although phosphorus fire is a cold flame, once it comes into contact with certain chemicals, it will produce a strong chemical reaction and directly form a fierce flame.

The temperature is so high that steel can be smelted in a short time!

The carcasses of animals that accumulate outside the farm will decompose and produce a large amount of biogas, which is the chemical component.

At that time, the elder brother was trying to make her not afraid.

Moreover, the safety measures of that farm were unqualified at first glance, so my brother also made a backhanded call at that time and reported the farm.

Wait a minute...

Thinking of this, Zhang Yingxue suddenly glanced at the mountain stream below.

Grunt!

She couldn't help but swallow, and a sense of foreboding spread through her heart.

"Professor He!"

"Get him back!"

Thinking of the key point, although Zhang Yingxue didn't know what would happen in the next second, she suddenly strengthened her vigilance in her heart and immediately urged.

What's the situation?

But hearing her urging, He Hongbo and the others didn't understand.

But at this moment, Yang Shurou, who had not spoken, also immediately realized something, and then immediately echoed: "Hurry up, listen to Yingxue, let people come back quickly!" ”

What?

Why did she even say that?

Although He Hongbo didn't realize what was going on, he immediately complied.

After all, Yang Shurou is a descendant of moving mountains.

"Come back quickly, don't go any further!"

Well?

Hearing He Hongbo's shout, although the security officer still didn't understand what was going on, he also subconsciously turned around.

Immediately afterwards, a scene that made people's scalp tingle appeared.

I saw that from the abyss below the suspension bridge, an updraft suddenly surged.

Wrong!

The security guard was trained and had a stronger sense of danger than the average person, so he immediately realized that something was wrong.

"Run!"

It was at this time that Zhang Yingxue's urging voice came from the rear.

Without saying a word, the security guard rushed back in their direction, almost instinctively, and he was still a step too slow.

I saw that when he was about to rush to the edge of the cliff, the updraft covered the phosphorus fire behind him, and the phosphorus fire turned into a crimson high-temperature flame the moment it came into contact with the special gas.