"Keep going, although this piece of machinery has been cleaned up, everyone should be careful when moving forward."

Because the mechanism dismantled by the mechanic has been filled with a basket, everyone also knows that although this cave looks quiet, it is actually not safe, so even if Su Yu doesn't say it, they will be vigilant and will definitely not act rashly.

In this way, everyone carefully groped their way forward.

Even at such a slow pace, it took them less than ten minutes to reach the end of the cave.

"There is no road ahead." The person in charge of the front scouts cautiously touched the surrounding walls, and then told everyone what he had found.

"I guess it's still an agency, I'll look for it." Although he was checking the mechanism along the way, the mechanic was not tired, but very excited.

After all, in their industry, the most lacking thing is practical cases, and being able to see so many perfectly arranged organs at one time will have a huge effect on his future learning and growth in this industry.

So, while the mechanic jumped up and down to fumble for the mechanism, the others stayed where they were for a while to rest.

Because it took a while to look for the mechanic, Su Yu ordered five more people: "The five of you go outside to see the situation, this is a detonator, and if there is a problem, it will be detonated directly." ”

Su Yu's biggest worry on this trip is that she will become a turtle in an urn, especially since the location of this final destination also happens to be in a semi-enclosed cave, so whenever she has time, she will arrange for people to explore back and forth, so as to ensure that even if they can't achieve their goal, they can get out of the way.

About five minutes later, the five men went and returned and told the truth.

"The ten people outside are still there, nothing happens."

Hearing this, everyone was relieved, and Su Yu was also relieved.

The rest of the time is to wait patiently for the Mechanic to find the Mechanism, and then follow the path opened by the Mechanism to see if you can find the source of the pollution!

As the minutes and seconds passed, the mechanic found nothing, and everyone couldn't help but have doubts about him.

"Why haven't you found the mechanism for so long?"

"Do you want to stop using fluorescent water? I think it may be that the mechanism is too tightly hidden, and the light here is dim......"

Hearing everyone's words, the alchemist said helplessly: "The fluorescent water has run out. ”

It is true that there are many kinds of strange things on her body, but the amount of each potion is not much, otherwise she is such a big person, and she can't carry many potions.

Originally, she didn't even plan to bring a metal fluorescent, but if she hadn't heard that the destination of this trip was a cave with dim light, she thought that special marker props like fluorescent agents might come in handy, so she filled a bottle.

And that bottle had been used up just now, after all, the cave was not small, and it consumed a lot.

"Then there is no way......"

The fluorescent agent ran out, and the alchemist also said that there were not enough materials to make it on the spot, so there was really no way.

After waiting patiently for a while, before everyone could say anything, the mechanic himself couldn't help but start to doubt.

"My lord, is there a possibility that we are in the wrong place......" the mechanic said as he noticed that many people were staring at him with strange eyes.

After a few seconds, he suddenly realized that it might not be appropriate for him to say this, so he quickly explained, "That's not what I meant! I'd like to say that I didn't find any mechanism in this area......"

Both mean the same thing.

The mechanic himself must have believed in his own strength, so he felt that it was not that he had not found the mechanism, but that there was no mechanism at all.

But he can't directly question that Su Yu is in the wrong place, after all, the gap in identity and status is here.

Of course, this may not be the case in the eyes of others.

Some people think that what the mechanic said is right, and they may really be in the wrong position.

Some people also think that they have not found the wrong position, after all, if they find the wrong position, then there should not be a trap array outside, and there should not be so many traps.

There was an endless stream of private discussions, and Su Yu originally felt that it was not a way to find it like this, but she didn't think of a solution for a while, so she didn't say anything, but just now, she had already thought of a solution.

"Gong Yu, with your current strength, how thick of an obstacle can you penetrate?" Su Yu looked at the bard.

Minstrel...... It was also Gong Yu, he stroked his harp and slowly spoke: "I don't dare to say more, there is still no problem with the obstacle of three or five meters, Lord Lord, this is what you want to test which direction is hollow?" ”

Since ancient times, the classic way to check whether there is a secret room or cubicle is to knock on the wall and other places, and then listen to the sound to distinguish it.

However, since there is a way to find it, there must be people who will find a way not to find it in order to hide the secret room of the compartment, and the simplest of them is undoubtedly to directly widen the distance between the two spaces, so as to have a certain sound insulation effect from a physical angle.

In this case, it is certainly not possible to find the hollow by the sound of percussion.

Su Yu had tried it before, and there was really no way to find the hollow position through ordinary tapping.

However, when she saw the bard, she thought of another way, and this way, as Miyayu had said, she wanted to find the possible location of the secret room through the sound of the rhythm.

"You try, you all go back first." With Su Yu's order, everyone retreated to the rear, leaving only Gong Yu alone at the end of the cave.

Gong Yu didn't care about the eyes of others, and sat on the ground by himself, his fingers on the harp.

"I suggest you cover your ears." As soon as Gong Yu's words fell, the fingers that were still soft and weak before suddenly struck the harp like sharp blades, and the sharp but not harsh rhythm echoed throughout the cave.

For a moment, everyone who didn't have time to react felt as if they were going to be deaf.

And those who reacted a little faster, although they covered their ears, still felt a faint buzzing in their heads.

As for Su Yu, she took the earbuds out of her ears after the storm was over, and then leaned close to each wall to listen.

After going around, the surrounding walls had already been heard, and Su Yu still hadn't found a hollow location that could become a secret room.

Others who did not believe in evil also tried to listen, but to no avail.

After thinking for a moment, Su Yu suddenly had a bold idea in his heart-

"A few of you go out again......"