Nack decides that if he doesn't feel anything at all, he will go back to the cave and go back to the lake, as long as he is careful, he should not be so unlucky and encounter some terrible monsters

But now there is no need to worry at all, if there is wind, it means that the passage will lead to the outside world, even if the exit of the passage is halfway up the mountain, it is much better than going back to the lake.

Nack felt that the wind was coming from the middle passage, and he did not hesitate to continue along this road.

In this way, there were many forks in the road after that, and basically Nack used this method to decide which way to go.

After a long distance, they had reached about four-fifths of the total height of the cliff island, which was determined by Yin by analysing the record of Nack's path.

Another fork in the road of two passages appeared in front of Nack, and when he saw these two forks in different directions, he did not decisively choose one passage to move forward as before, but felt a strange "Huh? "Yes.

At this point, the wind has been blowing a lot, and even if you don't have to wet your fingers, you can clearly feel the direction of the wind.

It stands to reason that Nack would not hesitate to go in the direction the wind was blowing. However, he was surprised to find that the other passage was obviously different from all the passages he had seen before.

There were obvious signs of manual excavation, and even where Nack was standing now, he could clearly see the light in the distance. In addition, the passage was reinforced with a lot of solid timber around the perimeter.

It was for this reason that Nack did not make a decision for a while.

Nack already sensed that if he chose the passage in the direction where the wind was blowing, the exit should be in front of him. It is almost certain that this passage will lead to the outside world.

However, the other passage also made him curious. Why is there a passage in such a place that is thought to have been built?

It can be seen from these rough logs used to reinforce that the age of this passage is very old, and they have been very corroded very badly, if they had been willing to maintain it, they would have been sent to reinforce it again, and they would not have become like this at all. So, this path should have been unattended for a long time.

So, Nack wonders, where does the end of this passage lead? Could there be anything in there?

Nack calculated that he came to Cliff Island relatively early, and there was still plenty of time, so even if he took a slight detour to see it now, it shouldn't have a great impact on his next actions.

Besides, there is a high probability that the other side of this man-made passage is also an exit, but it was only closed for some reason, so I didn't feel the wind entering. If that's the case, with Nak's ability, maybe he can reopen the road.

Compared with the two, Nack decided to try this passage with artificial traces first, even if he couldn't get out in the end, the speed of one nanogram would not be a lot of delay.

Walking in this artificially opened passage, although no one has maintained it for a long time, it is still much better than the natural path taken before, not only the ground is relatively stable compared to the former, there are no potholes, and the route is also smoothly raised at a certain angle, and there are few ups and downs.

In this way, Nack's advance became faster, and soon he came to the end of the passage.

Yes, that's right, a dead end, the passage is sealed by a flat piece of metal. Nack suddenly felt in his heart, "Are you kidding me?" "Thoughts.

However, when I think about it, I know that something is wrong, who would be so boring to do such a thing, if it is said that the passage has collapsed, Nack can still understand. But now it's clearly not, there is absolutely no debris around, and the wreckage left behind by the collapse of the passage. In addition, the intersection of the metal and the passage is also very smooth, and the possibility of the passage collapse can be basically ruled out.

And if it is to seal the passage, bricks or some other materials are completely sufficient, and the use of metal is too luxurious to be necessary. If this is the case, then the predecessors should have their purpose in doing so.

Nack's eyes rolled in his sockets, observing the wall at the end of the passageway, but if he looked at it, Nack didn't find anything for the time being.

However, convinced that his idea should be correct, he began to fumble around the wall, knocking east and west.

"Da, da, da"

"Da, da, da"

"Da, da, da"

。。。。。。

"Da, da, da"

"Knock, knock, knock"

"Huh?" Nack's "um" was a little surprised, a little delighted.

As he banged on the wall, suddenly there was a sound of the wall tapping on the wall that was different from the others, and it sounded hollow inside, without that feeling of fullness.

Nack quickly wiped the mud and sand from this position, and it turned out that there was a whole green brick in this position, but it was covered with mud and sand, so it was not easy to see.

Nack smiled slightly, and took out the green brick, which only had a round pull ring, and a jump chain was attached to the pull ring, and the length of this chain was only about one or two centimeters at most.

Isn't it clear that you want someone to pull it out when it's designed like this? Could such an obvious trap be a trap? Nack thought about it, it was very unlikely, and he didn't find any other mechanism here.

Moreover, if you have already come here and give up, then you haven't left in vain before. When he chose this path, Nack knew that there was a risk, and this level was still within the range of tolerance.

decided to pull the bracelet, but this does not mean that Nack has to pull it directly with his hands, there is a more secure way, and Nack will not bear this risk for no reason.

Nack took out a piece of ordinary metal, put his hands together, and used Alchemy to smelt the metal into a metal rod with a right angle at one end.

Nack was going to use the metal rod to hook the bracelet, even if something unexpected happened, he would have some time to buffer.

Nack inserted the right-angled end of the metal rod into the ring, hooked the ring, and then pulled it out with force.

The chains connected to the ring were gradually pulled out of the wall, and the sound of "rumbling" from the interaction of various parts such as gears could be clearly heard from the wall.

With the gradual extension of the chains, the metal wall that originally blocked the way slowly rose little by little.