Zhang Gong also looked tired at this time, took out the water from his backpack and took a sip of it and said: "I don't need you to tell me this now, I wonder, why didn't the ancients have a fresh idea, making an ancient tomb is this space cycle, and it is about to become the standard, alas!" How long have we just been gone? Roughly calculate the length here. ”

Professor Chen snatched the water from Zhang Gong's hand and drank a few sips and said, "Half an hour? Twenty minutes? This is not clear. ”

"The speed just now is almost 10 miles an hour, 20 minutes, half an hour, that is to say, we have walked 4 to 5 miles, such a long distance, now we are in big trouble."

In the environment of mild hypoxia, coupled with physical exhaustion, the body and thinking will be significantly sluggish, which is directly reflected in Professor Chen, Zhang Gong and others. Although Situ Fang and others have been retired from the army for a few years, their physical fitness is still very good, and compared with Professor Chen and others, the advantages in this regard are not more than a little bit.

Situ Fang looked at everyone around him, most of them were already tired, so he said: "Professor, you all stop here for a rest meeting, if we start to walk here slowly from the suspension bridge, then the junction can definitely be judged by the sound of tapping, so I decided to take a few people to knock on the cave wall all the way along the sides now, maybe you can find the problem." ”

Professor Chen nodded and said, "Okay, this is also the stupidest and most effective way, then you can work hard, alas, when you are older, you will become a burden to you young people." ”

In this way, Situ Fang took three people away, and several people knocked on the mountain with small shovels along the way, and soon the figure disappeared in front of everyone's eyes, leaving only the sound of the small shovel hitting the mountain echoing. After walking like this for more than 30 minutes, Situ Fang and the others came back from behind everyone in the sound of knocking, and it seemed that they had found nothing.

Professor Chen rested for more than 30 minutes, his physical strength and thinking were replenished and adjusted, he stood up and said: "Don't bother, Situ, the design here should be the same as the one just now, and it is also a passage that appears from above, so let's look at the top of your head, I think the idea and method of design here are the same." ”

"But it's straight, it's curved, and if it's a drawbridge, how does that happen?"

"Since it's a sectional suspension bridge, there is no problem with these arcs after sectioning, and the arcs of the passage are more suitable for camouflage and concealment, so let's find the way overhead."

"Professor, I think there's something wrong with your train of thought, there's a walk down the suspension bridge to the enclosed space, and now we're going up from the suspension bridge, and then we're going forward and then getting here, so I think we're parallel to the suspension bridge, or higher than the suspension bridge, if it's parallel, we've knocked it around just now and ruled it out, so I think we should look at the feet, not the heads."

"Also, it seems that I'm confused, so you have knocked on the circle just now, which means that it is impossible for us to be on the side, or the thickness is quite high, then try what you said again, look down."

Hearing this, Situ Fang took three people again, and in groups of two, they looked down at their feet from two directions, and after nearly twenty minutes, they met together, and this time they didn't find anything, so several people walked back in frustration.

As he walked, Situ Fang suddenly found a paper ball on the ground in front of the passage, so he hurriedly stepped forward to pick it up, and when he opened it, he saw that a few words were written on this yellow paper with a carbon pen: There is a situation ahead, don't come out for the time being.

After Situ Fang drew a swastika on the place where the paper ball fell, he hurriedly ran to Professor Chen and handed over the note, Professor Chen looked at it and smiled slightly, and said: "It seems that we didn't walk in here by ourselves, but were arranged here, so it's okay, it means that we are safe." ”

Zhang Gong took the paper ball and asked, "What does he mean by the note?" ”

"I guess it has something to do with the grave robbers, maybe they're fighting again."

"You're saying that the tomb robbers are trapped in some space as well? And then the grave keepers shoot them in the shadows? ”

"It's possible, but I'm not sure, after all, those tomb robbers are very well armed, and if they are really shot, they will definitely fight back blindly, and then there will definitely be a sound."

"So that means they haven't solved the problem yet?"

"It should be, so we need to keep waiting here."

"Understood, that means that the group of tomb robbers has almost entered the slaughterhouse now, and is now preparing to be judged by the grave keepers."

When Situ Fang heard Zhang Gong talk about the slaughterhouse, he felt a little incredible, so he asked, "Does the grave keeper have the right to kill people?" ”

Zhang Gong glanced at Situ Fang with contempt, and then said: "They don't have the right to kill, but they need to divide the situation, for example, just now, those foreign tomb robbers armed tomb robbers, the tomb keepers shoot the armed tomb robbers in order to carry out the mission of generations and protect this ancient tomb, such a situation is generally not pursued, I think they should be rewarded instead, to put it nicely, these ancient tombs are like things in their homes, and people are not allowed to do anything when they come in to rob other people's things?" To put it mildly, this is a cultural relic of the country, they are guarding this heritage for the country, and there is nothing wrong with killing those tomb robbers! It is because of their generations of perseverance that these ancient tombs have been preserved. ”

"Okay, let's not discuss this issue, I personally think that this note also sends us another signal that we should be able to get out."

Professor Chen's eyes suddenly flashed, and he said with a little excitement: "You mean that there must be an exit near the paper ball?" ”

"Yes, that's exactly what I thought! On the one hand, this paper ball is telling us which space in front of us is the tomb robber, and on the other hand, it is also telling us that the place to go out is near the paper ball. ”

"Clever! Lao Lei really helped us a lot this time! Since the grave keepers can throw paper balls in, it means that they can see our every move in the dark, which means that they have come in through a window and then throw them in, telling us about the tomb robbers on the one hand, and exiting them on the other. ”

Situ Fang nodded and said, "Professor, I'm not sure about one thing now, that is, will the grave keeper also shoot us?" ”

"They already knew our identity and purpose in the hotel, and they must have secretly observed our whereabouts in the peerless town, probably seeing that we were in the real archaeological and conservation area, so they didn't shoot us in the passage, but protected us in this way."

As soon as Professor Chen finished speaking, he heard a loud voice suddenly come out of front of him: "That's right! ”