After walking for about ten minutes, just when everyone still felt that this passage was unfathomable, suddenly the light in the hand of Nari in front of them hit a wall.

In other words, the passage in front of it was blocked by a wall.

It's the end!

"No, this passage is gone?" Tom was surprised, a little incredulous, after all, this passage still had to be mechanical, and it only took ten minutes to stop, which was too short.

"I feel like there should be a mechanism, everyone have a snack, this passage is not that simple. Ning Xiaofan said.

At that moment, Nari walked straight to the wall, and began to knock on it with her hand, but it was too thick to see any difference from the others.

Ning Xiaofan planned to have a perspective to take a look, if there was a mechanism here, he should be able to see it below.

After dilating his pupils, he suddenly found that there was a road behind this wall, but it was not a passage, it seemed to be a cave.

This wall can be opened, just need to find the mechanism from the hole!

Just as he was about to look for the mechanism, he suddenly saw a lot of sharp arrows trembling in the crevices in the stone above the part of Nari's head, which was occupied by Nari above the passage, that is, in front of the wall, and could shoot out at any moment.

Ning Xiaofan was shocked, this must have been something that Na Li had touched just now, otherwise it would have been impossible to touch the mechanism here. If those arrows were fired, Nari would have died.

"Come back!" Ning Xiaofan roared, grabbed Na Li's arm, and didn't know where the brute strength came from, so he pulled her over, and the moment she pulled over, hundreds of sharp arrows fell from the top and swished to the ground, making everyone stunned, and it was also because of Ning Xiaofan's timely pull away, this Na Li was saved from death, Na was also terrified in her heart, after all, she was just an eighteen-year-old girl, no matter how brave she was to experience such a scene of life and death, she had to tremble in her heart.

"Everyone be a little careful, this should be an organ arranged by the people of country M many years ago, there may be more than this one organ here, these organs may kill people at any time, don't underestimate it!" Ning Xiaofan said.

Everyone has no doubts, because of the arrow just now, everyone's vigilance has increased hundreds of times, and every step is cautious, and even the driver doesn't dare to move, and he is scared.

After Ning Xiaofan finished speaking, he continued to look at the wall in front of him and the surrounding things with his perspective eyes, to see if there were any other mechanisms that could open the wall. First he found that there were no more fatal arrows and other dangers, and then he found that there was a very strange relief on the right side of the wall, which was somewhat like the shape of a copper coin in ancient China.

Ning Xiaofan dilated his pupils to look at the back of the relief, and was suddenly shocked.

Behind this relief are all kinds of precision gears, chains, and all kinds of switches!

In other words, this relief is the key to opening this wall door!

But how to open it, Ning Xiaofan finally came to a conclusion, there is still a device on this relief, it is only a lock, and if you really want to open it, you have to find it. In the middle of the relief, there is a deep hole, which is really like the key hole of the lock cylinder at home, but where to find a key that can open this relief lock?

Just when Ning Xiaofan was at a loss, Tom suddenly picked up an arrow on the ground, and couldn't help but sigh: "I have to say, the people in the past were wise, looking at the time of the arrow shaft, it must have been at least a hundred years, and it is almost the same as before, but the end of this arrow is already sharp, if it is pierced on a person's body, it can be said that it can be penetrated more than a bullet." ”

Listening to his words, Ning Xiaofan's eyes also looked at these arrows, and with Nali's light, he suddenly found a somewhat unique arrow among these arrows.

This arrow is not sharp, on the contrary, it is still very curved, its end is curved, which is very strange, so many sharp arrows, there is actually a curved one, this is because I have been in the wall for a long time, when I shot it just now, I hit a foreign object, and then it was bent?

I have to say that there is indeed such a possibility, but Ning Xiaofan feels that this possibility is not very likely, on the contrary, an idea suddenly popped up in his heart, he took this arrow and walked directly towards the relief.

"Be careful, if there is another dangerous mechanism!" Nari was already afraid, since she was dismounted by those arrows just now, she basically didn't dare to cross the thunder pool by half a step.

Ning Xiaofan didn't listen to her, and resolutely walked over, and then tried to insert the curved arrow into the small hole in the middle of the relief, maybe this was the key to open the wall door. It's a pity that Ning Xiaofan was disappointed in the end, this can't be inserted at all, because the arrow port is bent, so the direct size can't get in.

Jin seemed to see Ning Xiaofan's intentions, "Fan Shao, this shouldn't be the key to open the mechanism, why don't you try other arrows?" ”

Ning Xiaofan was a little disappointed, listened to Jin's words, and tried other arrows, but found that it was useless at all, and after inserting it, there was no reaction at all.

"We're not going to die here, are we? or we're going to go up the passage, I don't want to die in this hellish place where there's no light. "The driver was about to cry, and he was even more desperate when he saw that there was no hope ......of opening the door.

"Don't bb, then bb, Lao Tzu will kill you with one shot. Tom couldn't help but talk nonsense all the time, and he was talking about things that made everyone feel down.

"I ......"

As soon as the driver heard that Tom was going to kill him, he quickly covered his mouth and did not dare to say anything more.

Ning Xiaofan tried the arrow for a long time, and finally got back the curved arrow just now, I don't know why, he always had an intuition in his heart, this arrow is the key to open the wall door, and the others are all seductive illusions.

But now that the crooked arrow can't get into the hole, it's a big problem, so what can I do about it?

Just as Ning Xiaofan was thinking carefully, Nali's light suddenly hit the curved arrow.

"Let me take a look. Nari said suddenly.

Ning Xiaofan raised his eyes to look at her, and then handed it to her.

"My father once said that in the ancient country of M, there was a kind of curved arrow, which did not exist in one piece, and there was often a mystery hidden in it. As she spoke, she began to hold the arrow in both hands, and as her wrist turned, it kept twisting like a bottle cap.