It is said that people's psychology changes with the scene, that's it, life has to go on, you encourage me and I encourage you, maybe life will become a little different.

Hua Xinyu secretly glanced at Lin Qing and found that Lin Qing was also looking at her, feeling that the atmosphere at this time was a little weird, so she quickly returned to the topic and asked, "Great talent, you read a lot of books, so what do the above four sentences mean?" ”

Lin Qing didn't think much about anything else, now he only had to go out to get out of business, he looked at the words on the wall and pondered for a while before saying: "The most important of these four sentences should be the last sentence 'The needle turns ugly and can survive'." ”

Lin Qing looked up at the white strip of cloth hanging on it, and then said: "That is to say, we have to adjust the crown needle of this corona to the position of the ugly time, and the way out will appear, and we will have a chance to survive, which should be the meaning of 'the needle turns ugly to survive' written above." ”

Lin Qing pointed to the corpses hanging on his head, and he guessed that the key to getting out should be on these corpses.

Hua Xinyu didn't dare to look up, because the ragged skeleton corpse was really terrifying, she lowered her head and asked, "Then how can I get the crown needle to the ugly position?" ”

Lin Qing groaned: "This...... I don't know, but there should be a mechanism, so let's find a mechanism to mobilize the crown needle. ”

Saying that, Lin Qing began to look for it again, and after searching for a long time, the two of them found that the mechanism that used to transfer the crown needle was next to those engraved words, which made it easy for them to find it.

Because the design of the mechanism is the same as the abyssal wall, unlike the potholes where the lettering is written.

And the moss on it was almost the same as the rest of the place, covering the location of the mechanism, so they couldn't find it at first, until they removed the moss around the four lines of words and realized that the mechanism was next to the lettering.

Looking at the mechanism on the abyssal wall, the two breathed a sigh of relief and finally found it!

The mechanism is a square of the palace grid, square, divided into twenty-five pieces equally, five times five specifications, each square has text on it, but they don't know the text on the square.

But the next to the mechanism was engraved with a number, each square has a corresponding number, although the engraving is very small, the nick is not very deep, but it is still quite clear, from this handwriting can be seen that it is still engraved by that person.

The outermost numbers, that is, the numbers with the length of the four sides of the square, are 12345-54321-12345-54321, which are connected from end to end, with two angles being 1 and two corners being 5.

Then there are nine inner blocks, two diagonals, one is 1, one is 5, and the intersection is 2.

The remaining blocks are zero.

As follows:

1 2 3 4 5

2 1 0 5 4

3 0 2 0 3

4 5 0 1 2

5 4 3 2 1

Lin Qing and Hua Xinyu looked at this string of numbers, and then looked at the palace grid mechanism, and felt a lot of pain in their hearts, especially Hua Xinyu, she was not very good at math, and this puzzle solving game really made her feel a special headache.

But a headache is a headache, and if you want to go out, you still have to pay some brain cells.

The two of them stared at the numbers so hard, their brains racing rapidly, trying to see what was going on with this mechanism, and occasionally staring at each other with wide eyes, but helplessly, they still found nothing.

There's no way to start at all, Hua Xinyu complained again: "This prompt was given but it didn't seem to be given, how can we solve it?" ”

Lin Qing didn't answer Hua Xinyu's words, he still looked at those numbers intently, Lin Qing always felt that the arrangement of these numbers was very familiar, as if he had seen them somewhere, but after thinking about it, he couldn't remember where he had seen them.

"Needles turn ugly to survive" Lin Qing muttered, as soon as he finished speaking, he remembered an incident when he was a child, he looked at the numbers on the abyss again, and finally knew why it was familiar, it turned out that he had really seen these numbers, he tried hard to recall, and was sure that this was the game of mathematical operations that his uncle taught him to play when he was a child.

These numbers look quite a headache, but the operation method of this number plate is actually very simple, that is, an operation on addition, subtraction, multiplication and division.

His uncle once told him that this was a common arithmetic game somewhere in China.

Could it be that the uncle is talking about Changsheng Village, or that the person who engraved these words is the person from the place where the uncle said, or that these words were engraved by the uncle, but these handwriting are not the uncle's notes, and they should not be engraved by him.

Thinking of this, Lin Qing was a little gloomy, his uncle had been missing for so long, and now he couldn't find it, he now misses every relative, of course, here is the home when he was a child, and the relatives of the family that was maintained by his grandfather.

But he also knows that his uncle is not an ordinary person, how can an ordinary person have such good skills, how can he have such a powerful martial arts, even if he is so good now, in front of his uncle, he doesn't dare to say that his skills are good, and his skills are just the fur that his uncle taught him.

And his uncle was not raised by his grandfather Manyue since he was a child, but was rescued by his grandfather when he was twenty years old, and then he has been living with them all the time, of course, Lin Qing has not been adopted by Manyue at that time, he was adopted after his uncle.

Originally, his grandfather did not allow his uncle to stay, because the family was already in difficulty, and his grandfather spent all the money in the family to beg a barefoot doctor to save his uncle, because his uncle said at that time that even if he died, he would not go to the hospital.

After his injury healed, his uncle saw that his grandfather had spent all the money to save him, so he often went out to earn money to support the family in order to repay his kindness.

He didn't understand it before, but now that he has experienced so much, he has long understood that his uncle does not go to the hospital even if he is injured, he must be afraid of being discovered, and he has such good skills, and he came to their house because of his injury, all kinds of signs show that his uncle is not an ordinary person.

After recalling for a while, Lin Qing thought about getting back to business again, and remembered the rules of this number game.

Simple rules of addition, subtraction, multiplication and division.

This number plate is calculated by combining numbers and shapes.

The method of pressing the plus sign is to press the number on the median line of the square horizontally, and then vertically press the number on the median line of the square, and its trajectory is "+".

The method of pressing the minus sign is to press the number on the median line of the square horizontally, and its trajectory is "-".

The method of multiplication is to press the number on two diagonal lines of a square, and its trajectory is "×".

The method of dividing is to press the number on the median line of the horizontal square, and then press the number on the midpoint of the upper and lower sides of the length, and its trajectory is "÷".

The rules of this game are: give the beginning and the end, and count the end with the beginning; Shun, irreversible also; When counting, small is the first, small to large, and if you can't do it, you can take the small, and then go to the next level; If you can't do it, take the fruit as the head, repeat, to the mantissa out, according to the law, first according to the number, then press the point, continue to press the four operations, and then press the number.

That is to say, this game gives the first and last two numbers, use the first number to calculate the last number, and can only be calculated in the order of addition, subtraction, multiplication and division, can not reverse the order, when calculating, to take the smallest number to calculate, if from small to large can not be the result, then take a minimum calculation, and then to the next level of operation, if it is not calculated, then take the result of the calculation as the first number, repeat the above rules, until the result is calculated.

The rule of thumb is to press the number first, then the most central number, then addition, subtraction, multiplication and division, and finally the next number.

Lin Qing looked at the top of his head, the crown needle at this time pointed to Shen, that is, the first number is Shen, and Shen is nine, and they want to turn the crown needle into ugly, that is, the tail is ugly, and the ugly is two, give the head and tail, and count the tail with the head, and the head and tail are nine and two, that is, use nine to calculate two according to the above requirements.

Lin Qing followed the algorithm taught him by his uncle in his memory, and quickly came up with the press method, and then imitated the engraved number and pressed it again, and then pressed it on the grid mechanism of the palace according to the law after confirming that it was correct.

As soon as I finished pressing, there was an abnormality under the abyss, and I saw that there were dots of green light slowly appearing below, and the dots of green light slowly increased, and finally turned into a cloud of green light.

The green light slowly surged upward, illuminating the abyss into a green and faint light, like the Yama Palace, this green light was much brighter than Lin Qing's watch, because there were too many points of light in the green light, and it was clustered at this moment.

Not long after the green light rose, a rapid humming sound came from below the abyss, and the sound was like the sound of a large windmill spinning rapidly, very strong.

The green light slowly approached Lin Qing and them, and after these green lights got closer and closer to them, Lin Qing knew that the speed at which these green lights rose was not slow, but the speed of these green lights came up from a deep place.

The green light gets faster and the humming gets louder the closer you go.

"Not good!"

Lin Qing exclaimed in surprise, and hurriedly pulled Hua Xinyu close to the abyssal wall, and then squatted down quickly, trying to lower his body and close to the abyssal wall, and when they squatted, the green light continued to rise from their side at an extremely fast speed.

After the green light passed them, their ears were filled with a constant buzz, as if the whole world was no longer there except the humming.

It wasn't until the green light continued to rise for a while that the hum slowly faded from their ears.

The two of them looked upwards and found that the green light was all attached to the hanging corpses and the ropes that hung the corpses, and instantly turned into a crown pin that emitted green light.

Then something strange happened.

A slight buzzing sound came from above, and then the two of them saw the green light drive the hanging corpses and ropes to start slowly turning, and it had turned into a huge crown needle that emitted green light, and the crown needle slowly turned from Shen Shi to Chou Shi.

At the moment when the crown needle turned ugly, a "click" sounded, and this "click" seemed to be a starting signal, and with its sound, a series of sounds followed.

The abyssal wall slowly changed, and they quickly took a few steps back to observe.

A piece of space in the abyss wall slowly recess in, moss sprinkles off, and an octagonal hole appears in the abyssal wall.

As the movement slowly became smaller, the two slowly approached the entrance of the cave, who knew that as soon as they approached the entrance of the cave, a large group of black things appeared at the entrance of the cave, and the group of things surged out of the hole, and the two quickly dodged against the abyss wall to avoid those black things attacking them.

It wasn't until the group of black things flew out that they looked up at the group of black things, only to see that the group of black things swarmed towards the green light, and the green light was swallowed up in an instant, and the entire abyss immediately became dark again.

It was dark for a while, and there were terrible screams in the sky, and then there were clusters of firelight, which fell one after another, and at the same time there was a pungent smell, which was as if the meat had been burned, and it smelled very unpleasant.