Xu Shu looked at the stone gate and the stone walls on both sides, trying to find the news of the mechanism, but it was so easy that he couldn't see a similar arrangement at all.

"It's troublesome, this stone gate is also in trouble." Zhang Hongjun is obviously a bag, with three stone gates on one side, but they are miserable, one lost Lao Biao, and the other almost took the lives of more than a dozen people.

Several people approached the stone door to take a closer look, and the stone door was opened, which is undoubted, so the stone door is not closed by the top door stone, nor is it opened and closed at one time, but can be opened and closed repeatedly.

Xu Shu also observed again, there is no gap between the stone door and the stone door frame and the docking position of the two doors, which is really puzzling, I don't know how people did it before.

It is also puzzling that the door frame is flush with the stone door.

If there is no auxiliary head and door knocker, it is not even possible to see that there is a stone door at the end of this tomb.

Xu Shu was worried for a while.

Zhang Hongjun seemed to be more experienced, and after careful consideration, he clenched his fist and knocked on the stone door and the stone walls on both sides, in Xu Shu's ears, the sound of the fist knocking was the same dull, and he couldn't hear anything special, and Zhang Hongjun was sideways to carefully distinguish it.

"Lao Zhang, what's wrong?" Xu Shu saw that Zhang Hongjun had finished knocking and listened to it, so he asked him.

Zhang Hongjun smiled and did not answer Xu Shu's words, but stroked the crack of the door, the stone door was opened, but there was nothing to be seen in the gap of the stone door, and the stone door was made very well.

Xu Shu looked up and down, and there were thresholds up and down the stone gate.

"This stone door is very special, when making the door frame, install both sides of the stone door, make a hole up and down, the hole on the top is deeper, the two sides of the door frame are made into a concave groove, arc-shaped, the stone door is installed at both ends of the door frame to leave two protruding parts, and the edge of the stone door is made into an arc shape, so that the stone door opening and closing can be combined with the door frame tension, a very special setting, but this stone door installation method, is not unusual, many old houses are now such doors." Zhang Hongjun must have seen it, so he analyzed.

Xu Shu had also seen this kind of door, and he had seen it in the countryside, so he asked Zhang Hongjun: "Old Zhang, since you know, how can this stone door be opened?" ”

This is the key, someone has already pushed through the stone gate, pulled through the stone gate, but the stone gate can't move at all.

"This door, it should be pushed in, and it can be pulled out, now that the stone door is fixed, it must not be fixed on one side, otherwise even if it can't be opened, it can be pushed, I think, the mechanism is inside the stone door, and the position where the stone door and the door frame are docked." Zhang Hongjun frowned and pondered.

As soon as Zhang Hongjun said it, everyone was puzzled, but he immediately began to look for it again, according to Zhang Hongjun's statement, if there is an organ, there will be an organ to control the news.

As a result, everyone turned on the flashlight, and found no clues on the stone gate and the nearby stone wall, and there was no organ news at all, and there was not even a protruding or concave place.

"Nope!"

"Nope!"

……

The results of everyone's search were the same, and nothing was found.

Zhang Hongjun frowned and repeated what everyone had just done, so Nanfeng said to Zhang Hongjun on the side: "Team Zhang, we not only looked, but also touched it with our hands, and we really didn't find anything. ”

Looking for not touching by hand is really not good, the stone wall of the tomb road is the traces left by the axe chisel, there is no carefully polished stone wall, it is still quite rough, it is very easy to leave dust, different from the stone door, the stone door and the door frame are made a lot finer, after polishing, smooth and smooth.

On the dusty stone wall, you can't see the original appearance just by looking at it, and you can only touch it with your hands.

Zhang Hongjun was studying the stone wall, but Xu Shu moved his eyes to the bronze auxiliary head and door knocker at this time.

Xu Shu raised his hand and held one of the door knockers, the door knockers were very thick, and their own weight was estimated to be more than a kilogram, and it was very laborious to pull up, and the result was naturally conceivable, Shimen still did not move.

At this time, the muscular man who had cooperated with Lao Biao before walked in front of Xu Shu, shook his hand and motioned for Xu Shu to step aside, and handed the flashlight to Xu Shu, Xu Shu smiled, took the flashlight, and asked the muscular man to open the stone door, his strength was far greater than that of Xu Shu.

The muscular man easily picked up the knocker and went to the stone door outside, the stone door seemed to grow in the door frame, and the muscular man pulled hard, but there was no reaction at all.

Looking at the muscular man, Xu Shu shook his head and asked him to stop, this method obviously can't work.

Xu Shu thought so, since there is a mechanism in the stone door, on the stone door, on the door frame, and on the stone wall on both sides of the stone gate, there is no news to open the mechanism, and the stone door has really been opened by someone, and the knocker on the stone door has been used, then the answer should be on the knocker.

Xu Shu was not in a hurry to push and pull, and shone a flashlight on the bronze auxiliary head, and observed carefully, which was completely inconsistent with the style of the Xu Shu sect.

In the flashlight, the bronze auxiliary head can be seen very clearly, the bronze auxiliary head is installed on the stone door in a circle, and the auxiliary head is cast in bronze, which is a whole, and there are no traces of splicing.

But at the place where the stone door and the bronze auxiliary head fit, Xu Shu saw a little trace, the trace left after rubbing.

"Big brother." Xu Shu beckoned the muscular man to continue, "Rotate the auxiliary head." ”

The muscular man glanced at Xu Shu, and then glanced at Zhang Hongjun, who was standing next to him watching at this time, Zhang Hongjun nodded, and the muscular man held the door knocker with both hands, and rotated the door knocker hard, but the door knocker did not move.

"Try spinning in a different direction." Xu Shu saw that the auxiliary head did not move, so he said to the muscular man again.

The muscular man did so, but the knocker still didn't move, Xu Shu scratched his head and was confused, judging from the traces on the stone door, the auxiliary head can be rotated, is it because the strength is not enough.

Xu Shu glanced at the muscular man who had stopped and said, "Big brother, try harder, otherwise we will have to turn around and leave." ”

After Xu Shu finished talking to the muscular man, the muscular man glanced at Zhang Hongjun, and Zhang Hongjun nodded affirmatively.

The muscular man's hands were held on the knocker again, and on the auxiliary knocker of a stone door on the left, he first turned counterclockwise, until Xu Shu saw the muscular man's arms trembling, blushing and his neck thick, Xu Shu asked him to stop.

"I guess this won't work, the auxiliary head can't move." More than a dozen people stopped looking for news from the agency, and watched the muscular man rotate the auxiliary head under the command of Xu Shu.

Xu Shu ignored these people's doubts, and glanced at the muscular man, he used his strength, and the sweat came out.

"Big brother, now let's change direction and rotate clockwise." Xu Shu said with the muscular man.

The muscular man nodded, continued to exert force, and rotated in a different direction, until he blushed and his neck was thick, and he actually moved, although it was only a little, but he heard the dull movement from the stone door.