It is said that entering the non-existent space of the fourth layer can solve such a problem. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

But Zhang Yuanhang didn't expect much from this.

Quite simply, this situation of going deeper and deeper from the beginning and finally returning to the beginning made him think of something very interesting.

Möbius Ring.

A Möbius ring is something that has only one side, but can walk through all the surfaces through that side.

There is no concept of positive or negative.

The Strange sheared the mine so that there was only the inside and no outside, forming a loop by gluing the exit of the third layer and the first layer.

Therefore, Zhang Yuanhang and others can only exist in the interior of the mine, walking through the route from the first layer to the third layer, and then returning to the first layer.

They can't get out because everything outside is gone, and for them there is only a fixed route in the mine.

In this way, it is actually a bit similar to the Klein bottle. However, the difference between the two is not very big, after all, splitting the Klein bottle in half is two Möbius belts.

There is no difference between the inside and the outside of the Klein bottle, no matter how you do it, the place you reach is still on the outside, and the essence is a strange thing with an outside and an inside.

Now Weird has made the mine into a Klein bottle, which has become a strange situation where you can only walk in the mine no matter how you go.

Zhang Yuanhang: They are trapped in an endless loop.

Xi and the others want to solve this problem, and it is really a bit troublesome.

Zhang Yuanhang didn't talk nonsense, just told everyone a little bit about what he knew, and then looked at these people in a daze.

To be honest, for the weirdness here, Zhang Yuanhang has constantly raised it in his heart, but he still didn't expect that the weirdness would reach such a height.

From the beginning, he was full of confidence to get rid of the haunted gold mine, and then left after discovering the strange trouble, gathered a few people and came back again, and finally became the prey of the other party.

Although it doesn't seem to be too dangerous now, with such a strange intelligence, is there really no way to deal with his own side?

Are these endless gushing spirits really fearlessly sending them to death?

Zhang Yuanhang felt that there seemed to be a conspiracy in this.

Because no matter how you look at it, this is a meaningless act of sending people to death.

How could a weird person be so stupid as to set a trap when he could be so stupid?

Zhang Yuanhang's scientific literacy is not deep, at most he is a small civil science, but he remembers one thing very clearly, that is, in the real society, there should not be such a strange thing as a Klein bottle.

Because the Klein bottle only exists in the fourth dimension, and the world he lives in is a three-dimensional space.

When something in a four-dimensional space is brought into a three-dimensional space, it itself represents an inappropriateness.

Zhang Yuanhang said these things, and he didn't expect the Kardashians to understand.

After all, there are no physicists who play the game, and this kind of advanced knowledge cannot be passed down.

"Hah!" In the distance, Xi suddenly erupted, and the sun's glow blew out the countless necromancers around her.

She even punched the ground, smashed a terrible hole, and jumped off.

It didn't take long for her to jump back on.

Obviously, she wanted to get through the way down and go all the way down, but she ended up on the first floor when she went down the third floor.

Not only Xi, but others are also having their own ways to destroy this mine, wanting to achieve their goals in this way.

But all Zhang Yuanhang could see was the scattered and destroyed caves.

Other than that, there are no anomalies.

This is already a big anomaly, for people like Xi and them, a single punch can collapse a mountain area, but now that they hit like this, they can't even collapse the mine.

The power of the punch is like sinking into a sponge, and it quickly disappears without a trace.

Zhang Yuanhang sighed, sat on the ground and casually looked at Ke Li's state, she was now almost level 9.

This made him want to be like her even more, so he just leveled up here.

After thinking about it, Zhang Yuanhang found that this was really a good idea.

It may seem dangerous, but it's not that dangerous.

With these mysterious ores holding experience points and allowing yourself to level up at any time, it means that you can return to a relatively safe point in a few minutes at most.

However, before he is ready to do this, Zhang Yuanhang still needs to do one more thing.

He unloaded all his equipment and didn't put it on again.

Although the level requirement factor can be ignored, the equipment itself contains extremely powerful power.

He once gave Kardashian two very rubbish pieces of equipment, but they already made her feel a little overwhelmed.

If he returns to level 1 by himself, will he be able to withstand the enhancement brought by the current equipment?

Therefore, it is not possible to wear equipment back to level 1.

In addition, Zhang Yuanhang also called Xi back, took out all the mysterious ores on his body, and asked her to smelt all these ores and reduce the volume.

Xi's Sun Flame is the hottest flame, and Xi, as a Sun Knight, can also control the temperature of the Sun Flame.

Under her watchful eye, the mysterious ore melted like water, then gathered together and was re-divided by her.

Ten huge gems appeared, each sparkling with a mesmerizing black brilliance.

"These gems can be named experience gems!"

Zhang Yuanhang's heart was slightly excited, and he chose a new name for this gem.

And just as he was choosing a name, the [Mystery Ingot] that was originally marked on the system became the [Experience Gem].

This made Zhang Yuanhang think about something and grasp something.

"Androria, come here!"

Zhang Yuanhang shouted into the distance, and Androlia, who had been studying the mine wall, raised her head and trotted over when she heard the news: "Master, what's the matter?" ”

"Protect me."

Zhang Yuanhang smiled at her, then took the experience gem by his side, ignoring the various spells that Angelia had released for himself, and began to inject his experience points into it.

The XP Gem was the size of a human head, much larger than what had been previously obtained.

And this is extracted by the sun flame, which is the most important essence.

After Zhang Yuanhang entered 100 million experience points, it was not full, which already made him very satisfied.

By the time the 10 experience gems were filled with experience points, Zhang Yuanhang had already fallen to level 60.

"Very good!"

Zhang Yuanhang couldn't help but be a little amazed, if level 60 falls to level 1, the experience points that need to be given up are not very much, and at most one experience gem is needed to fully accommodate it.

He thought it would take 20 or even 30 to do it.

Zhang Yuanhang didn't need experience gems for the rest of the experience points, he directly aimed at a skill and upgraded it, and Zhang Yuanhang, who had lost a lot of experience points, soon fell to level 1.

"Now, it's time for me to level up!"

Thinking about it just now, Zhang Yuanhang had not yet started to use the experience gem, and he began to upgrade in an uproar.

In the distance, the necromancy that the light of the light of the sun had killed brought him plenty of experience points.

It's just that these experience points made Zhang Yuanhang, who was upgrading, feel a little stunned.

Although it is a general experience gain for brushing, each one is only 1 experience point gain.

Kill a monster with more than 40 and only gain 1 experience point?