And this time, the difficulty of the question seems to have increased again, and what is given is a ring Sudoku.

Its appearance is a circle, divided into five rings, one ring in which it is divided into ten parts.

And what needs to be filled in is also ten numbers from "zero to nine", no longer the previous nine numbers of "from one to nine" - one more number, the difficulty increases exponentially.

Sun Li secretly tongued, but after sighing, he still began to crack.

This time, the gears turned a thousand times before they stopped, and then the silver door opened with a "boom", making a completely different sound from the previous two doors.

But Sun Li was not very happy, but rushed inside with an arrow to see if there was another door.

Luckily, there is no fourth door.

At this time, Sun Li breathed a sigh of relief, and there was no lack of malice in his heart, maybe the person who designed the design didn't have enough money, so he didn't cast a fourth more expensive door.

Thinking like this, Sun Li continued to walk towards the front.

After more than ten zhang, the eyes suddenly opened up, and another hall appeared in front of him, much larger than the one above, with a radius of several hundred zhang, in terms of area, that is, the hall at the bottom of the Ten Thousand Spider Caves in Jinhua Mountain before can be compared.

Sun Li took a general look and found that this hall was designed in the shape of the word "Hui". It is divided into an outer area on the periphery and an inner area on the center.

And the formation that spreads from its own path passes through this outer area and enters the innermost inner area in the very center.

Moreover, this is not the only one, Sun Li can see that the same formation pattern extends from other directions, and there are more than a dozen of them in a rough number.

And according to the calculation of the vitality that can be evacuated within a radius of dozens of miles, I am afraid that there is no more than a circle of hundreds of miles in this inner area.

Horror, simply terrifying!

What secrets are hidden in this inner zone?

Sun Li didn't know, because this inner area was tightly blocked by the wall, and if he wanted to find out, he could only go in person.

So, the next moment, with inexplicable emotions, Sun Li slowly walked through the outer area and walked towards the inner area.

In this process, Sun Li became more and more frightened.

Because in this outer area it is not empty, but there are all kinds of things.

For example, the iron furnace used to make weapons, the copper tripod used to refine elixir, and the unknown container filled with various liquids, and even Sun Li saw a huge siege crossbow.

Basically, anything you can think of, anything that is allowed in this world, can be seen here.

This place is simply a department store.

No, it's not a department store! Sun Li looked at the strange things around him, looked at those things that were very novel, his eyes flashed slightly, and he suddenly had an amazing thought: "Here...... It's like a laboratory. ”

Yes, it's a laboratory, a huge laboratory, a laboratory that studies everything!

The next moment, Sun Li, who wanted to understand all this, was surprised by incomparable.

Because, no matter how you think about it, this kind of thing shouldn't exist, but it really exists. Who did all this, and for what purpose?

When Sun Li came back to his senses, he suddenly found that he had walked to the entrance of the inner area.

On both sides of the entrance, there are two bronze statues, one with a human-faced snake body and the other with a human-faced scorpion body.

This is...... Femme fatale? meaning vicious, deterring foreign enemies, or meaning ferocious, so that outsiders do not break in?

Sun Li glanced at the two bronze statues, confused, and couldn't figure out what they meant after thinking for a long time, so he simply shook his head, crossed the two bronze statues, and walked directly inside.

As soon as he took a step, the next moment he heard a series of gears, followed by the sound of metal rubbing, rust falling off, and finally the sound of breaking wind.

"Huhu", two weapons attacked the back of Sun Li's head at the same time, menacing!

Sun Li was slightly startled, lowered his head suddenly, dodged the attack, and then quickly turned around and looked behind, and saw that the two bronze sculptures like dead objects before were actually alive, one holding a spear, and the other holding a steel fork was attacking him.

"This is?" Sun Li's eyes widened, not shocked by this mechanism, but suddenly remembered something.

That is, in the modern animation "King Kong Gourd Baby", if I am not mistaken, there are two villains, one is a snake spirit, and the other is a scorpion essence, so these two in front of me?

Coincidence, coincidence, or coincidence?

Sun Li was really a little shocked, the seven gourd babies before were still coincidental enough, plus this snake spirit and scorpion essence, it was so clever that it couldn't be more coincidental.

Could it be that this is really the world of gourd babies? What about Nie Xiaoqian and the old tree demon?

"Bang", the sound of the collision of weapons interrupted Sun Li's thinking, and the steel fork in the hand of the Zhuxian Sword and the Scorpion Spirit collided fiercely, and sparks immediately flew everywhere.

Sun Li gritted his teeth, slammed into the joints of the two strange bronze statues, and unloaded an arm with a click.

But the bronze statue did not feel pain at all, and after losing its arm, it continued to attack without diminishing its power at all, and the sound of gold and stone suddenly resounded, and it was not until after a cup of tea that it dissipated.

Sun Li stood on top of the corpses of the two bronze statues with scars, looking at the internal structure of the corpses, silent.

I saw that inside these two corpses, there were countless large and small gears, as well as gear-like devices, through a control core, manipulating the whole to exert extraordinary combat effectiveness.

In other words, these are two robots, two robots no less than modern ones.

Able to defend, can be on guard, can easily judge the advantages and disadvantages of the environment, and then choose the most suitable way to fight.

I have to say that this kind of existence is even more weird than the Sudoku mechanism on the previous three gates.

Who did all this, and what was his purpose? The doubts in Sun Li's heart became deeper and deeper, he clenched the Zhuxian Sword, took a deep breath, and finally strode into the inner area.

Anyway, let me see your true face of Lushan!

Then there was a sudden light in front of him, and an inner area the size of more than a dozen houses appeared in front of Sun Li.

Tables, long tables, square tables, round tables, semi-round tables, various kinds of tables......

On the table, there are all kinds of containers, large, small, transparent, translucent......

In the container, there are strange liquids, red, yellow, blue, black, green, blue, white......

And a man, a man dressed as a Taoist priest, was busy in the midst of this, pouring one of the liquids into the other from time to time, and then fusing the third into one piece, and starting to distill, condense, and so on.

If you ignore the world and the characters, this is a very modern laboratory.

It's just that appearing in this world, and a character dressed as a Taoist priest is busy, that feeling is really weird and extremely weird......

The Taoist priest had been busy, as if he hadn't seen his arrival at all, until a long time later, when he mixed more than ten kinds of liquids into one, he breathed a sigh of relief, then looked over and said slowly: "Boy, I hope these things of mine haven't frightened you." ”

Sun Li didn't speak, just looked at the Taoist priest, looked and watched.

The other party is not old, nor young, he is in his fifties, the wrinkles on his forehead are very deep, giving people a feeling of going through vicissitudes, and those eyes are even more aging. However, the gestures are extremely neat, and with a robe made of silver wire, it is very artistic.

Either way, though, it's an old man.

Well, an old man.

Then Sun Li remembered that in "King Kong Gourd Baby", a very key but often ignored character, his name is "Old Grandfather".

Well, grandpa!