The building of the fat teacher, in a place shaded by green trees in the backyard, faces the pond called Yunbo in front, and the tall women's school buildings are one west and one north, although the scale is very different, but it will not look depressing at a distance.

Mr. Xi, a fat teacher named Pang Jingran, led Ren Pingsheng into the small courtyard and closed the door casually. As soon as he entered the living room that was elegant and clean, but there was no extravagance, Ren Pingsheng even sensed the entire mansion, and there was a very strong fluctuation of qi in an instant. He knew that Mr. Pang had already used some kind of Dao magic power to isolate the heaven and earth here.

"Are you Ren Pingsheng?" Mr. Pang asked casually, as he rummaged through the living room where there was not much to do.

Ren Pingsheng nodded yes, feeling a little strange in his heart. It stands to reason that there is no need to ask more, Fang Mao also said, I am the only one who will be transferred to the class this year, and I will be ranked in the C level as soon as I transfer to the class, and there has never been anything in the Taoist Academy. As a teacher, such an outstanding student, you still need to ask.

"Can you really prove that the four-color map can make any adjacent region no longer have the same color?" Fat Jiao Xi suddenly glanced at him seriously, but it was just a glance, and then turned his head and continued to look for his things.

Ren Pingsheng thought for a while and said, "It is rumored that the prehistoric ancients have made countless attempts, and they all found that to draw two pairs of contiguous areas with public boundaries, only three or more can be drawn, and no matter what, nothing can be done." Therefore, it is possible to obtain a map of the world, which only needs four colors, so that the adjacent areas can no longer have the same color. As for the proof, this puzzle has never been proved by mathematical logic until the extinction of prehistoric humans and the end of civilization. ”

Pang Jingran took out a small piece of old and yellowed paper from a very secret locker, held it in his hand, and immediately turned around with a solemn expression, "Think about it seriously, and then tell me truthfully, who told you the truth of the four colors?"

Ren Pingsheng looked at the other party's expression, and knew that this matter was not trivial, but he still didn't think about it, and shook his head directly, "No one told me, it was like a big dream, and when I woke up, I knew many things that I had never heard of and never seen." I can't say I know, but I can think of it as soon as someone asks. So if my husband wants to find someone through these puzzles, I can't help him. ”

Pang Jingran's expression changed several times, and there was still a trace of doubt, his eyes stared at Ren Pingsheng, "Is this really the case?"

Ren Pingsheng doesn't know what kind of secret is involved, but in any case, it must be very important to this teacher. Although he was a little unbearable, he still nodded firmly and said: "Sir, just rest assured, although my classmates already know the principle of the four colors, but the origin of this matter, I will never pass on the six ears again." Therefore, it will still not affect Mr. to use this clue to find the person you are looking for. ”

He couldn't help but smile bitterly and continued, "I'm a blind cat hitting a dead mouse. To tell the truth, except for the easy number taught by the master, Kanyu and those rune books, I have never been to school for a day in my life, let alone read any other classics, and no one else has taught me any books. Whether it is the mathematics and physics on Mr. Lin or the Qi things that Mr. Lin talked about before, as soon as you start or leave a question, I seem to be naturally familiar with these problems. Mr. Lin taught, I didn't want to sleep, but I couldn't help but not sleep, it was very strange at this time, and I couldn't figure it out. When you went to class, sir, I was really tired, thinking that you wouldn't be in the classroom anyway, so I just continued to sleep. In the future, pay attention to Mr. Wang. ”

When he looked up again, he saw that Mr. Pang's round face showed the texture of muscle twitching, and he looked very excited.

Pang Jingran muttered, "It's not weird, it's not weird, it's good, it's good......"

Ren Pingsheng was at a loss, so he simply waited for the following.

Pang Jingran spread out his left hand, and the yellowed piece of paper appeared in the palm of his hand, the paper was spread out, only the size of a palm, and there were only a few strokes on the paper, which was a vivid picture.

The things on the screen are extremely familiar to Ren Pingsheng.

Every time he saw Jin Ao, he hung a small pendant on his chest that looked like gold and not gold, and silver and not silver, which made Ren Pingsheng look at it twice. The pendant is shaped like a drop of water, polished and smooth, with rounded edges; the carved pattern in the middle is obviously not a knife chisel mark, but more like a kind of brush stroke with a fine and round stroke; where the ink falls, it leaves a Taoist notch on the surface of the gold and iron; the strokes are rigid and soft, with a few brushstrokes, looking like the strange Tai Chi pattern of Taiyi Sect.

Regardless of the material and craftsmanship, it does not look like an item that can be made by a contemporary craftsman.

The first time I saw Jin Ao wearing such a thing, so the thing contained an extremely strange aura, or it was not a breath, but an extremely mysterious, unknown species,

Strength!

People in the rivers and lakes, everyone needs to leave one or two skills to press the bottom of the box, or magic weapons. Therefore, Jin Ao was extremely generous at the beginning, dedicated his own treasures, and never mentioned the pendant on his chest, Ren Pingsheng was not unconcerned, but he didn't want to do things absolutely.

After that, I saw Jin Ao again, and the ornament on his chest was never seen again.

Suddenly, I found that the drawing displayed by the fat teacher was such a thing, and Ren Pingsheng was shocked!

But now that he is with that Jin Ao, he can be regarded as an ally who does not know each other, and this fat teacher is just meeting for the first time, and he doesn't know the roots. Therefore, although Ren Pingsheng was shocked in his heart, he always kept his mind in check and tried his best to keep himself quiet.

"This thing is called the Infinite Pendant. It is a thing that has been passed down from generation to generation in the ancestral hall in my Jingluo Gate, and is in charge of the masters of the past generations. Pang Jingran said briefly, and spent about a moment or so to introduce some of the old yellow calendars of this door.

It turns out that Jingluomen is a little-known Taoist sect in the rivers and lakes. A thousand years ago, this kind of Jianghu sect that was not recorded in the genealogy of Hongmeng Mountain Daoting was as many as a cow's hair. The way of cultivation of various schools is also a scene of a hundred flowers blooming, some enter the Tao with martial arts, some use art as the way, and even some tricks in the rivers and lakes, such as the folk witchcraft of carrying ghosts on a boat and offering sacrifices to invite gods, there are many schools of thought, large and small. And among these complicated Jianghu sects, the Jingluo Sect is actually a serious Taoist sect, but because the Yuan Zhen Wuji Gong method practiced is contrary to the orthodox Taoism of the Taiyi family, it has never been included in the Taoist genealogy, and has been reduced to a wild cultivation sect, and cannot become an orthodox mountain sect.

Later, it was said that the traces of the sword demon Ren Fengshu clan were discovered, and even the sword of sorrow that had been passed down for thousands of years also showed signs of coming out. It was not so much a battle to eliminate rebellion, but a massacre by the Taiyi Sect to eliminate dissidents and clear the wilderness.

Because Jingluomen is located in Xijing, and the head of the house at that time was on the Kanyu side, he was the leader of the whole world, not to mention the reputation, the master named Lai Wensong Kanyu had an intricate relationship on the mountain. Therefore, before the Apologetic Iron Cavalry was dispatched, the Jinglumen received rumors early, and Lai Wensong knew that the general situation was irreversible, so he resolutely disbanded the Jinglumen. Hongmeng Mountain remembered its extraordinary achievements in the public opinion world, and wanted to let it work together for the world and stay in Xijing City.

The so-called co-workers, no matter which city they stay in, their identity and household registration are actually under the direct jurisdiction of the Hongmeng Mountain Lower Court. The world's engineers are divided into four categories, according to their rank from low to high for technicians, craftsmen, engineers, and co-workers. Among them, to the level of engineer, it is already very honorable in the industry, and generally in a landlord's main city, or even among the soldiers of the Northern Wilderness City, he will hold a high-ranking position. As for co-workers, they are all rare figures in the world.

But Lai Shi did not accept this position, but chose to travel the world and disappeared. In later generations, there are many legends of Lai Buyi, the master of Tianxing, and the folk history, for Lai Buyi, who thinks that Ren is chivalrous and righteous, and specializes in saving the poor and suffering with the secret art of Kanyu, is Lai Wensong, the head of the previous generation of Jinglumen.

Lai Wensong smiled at the actions of the rivers and lakes, so that countless people in the rivers and lakes have followed suit, and in the rivers and lakes for thousands of years, there is no sect other than the Taiyi Sect, but all kinds of mountains and rivers are cultivated, and folk teachers have sprung up. Jingluomen has its own future and has no contact with each other, but Lai Gong has two other descendants in the rivers and lakes, one of which is Pang Jingran.

The token of the teacher is the infinite pendant that is not like the things of the world.

"The Wuji pendant is said to be a token of the master, in fact, it is also a mission of the master from generation to generation, passed down from generation to generation, in order to find a person who was born to know, and put this pendant in his hands. My mission is over. Pang Jingran said this, his voice trembled, and he choked slightly, "Lai Gong was willing to wander into the rivers and lakes, and finally when he was refining the Yuan Shen in the Ying Heaven Realm, he did not protect Kunlun's heart with that sudden opportunity of the Great Dao, but he calmly endured the realm breaking tribulation with his physical body. Lai Gong's move is not without the intention of preserving the descendants of the same family and allowing future generations to successfully complete this mission. ”

"It's actually boring to be alone in this long river of time, watching life and death in the world. Mr. Pang's tone was a little calmer, and he said with emotion, the word boring, mediocre, and countless bitterness, "Now I finally found the person I was looking for, and Wuji Pendant has long been lost from my hands!"

Ren Pingsheng's face changed slightly, and he suddenly asked, "Dare to ask Mr. Guigeng?"

"Three hundred and twenty-five springs and autumns in vain. Pang Jingran laughed at himself, "The matter has come to this, Pang has a humiliating mission, and he should lead the family law by himself." But until then, I still have to protect your way. As for whether you can find this token in the future, and what you can use it for, you need to rely on your own chance and ability. ”

Ren Pingsheng suddenly had countless doubts in his heart, and after asking about it, he always felt that there was something strange about this matter, and even in his heart, it was extremely difficult to accept that he was the person that Mr. Pang had spent hundreds of years looking for.

What is the purpose of this little infinity pendant, which is neither a magic weapon nor a thing of the world? What is the origin of this thing? In the hands of a person who is born to know, and what should he do with it?

The most critical question is,

There are very few people in the world who are born to know, but they are not nothing, and how can you be sure that I am the only one who deserves it?

Pang Jingran spread his hands, and he didn't know any of the countless questions, so he only answered the last question.

"The so-called people who are born to know come from different sources, such as the complete souls of the reincarnations of the former sages, the wandering spirits and demons who took away the baby, or a certain god who has been degraded to the world, and is the body of a human in the world. But in any case, what is known is only the pinnacle of learning in history. And the theory of the four colors of the picture is derived from a prehistoric classic. This classic is also the foundation of the establishment of the scriptures and the source of the Taoism. The depth of knowledge contained in the texts is unparalleled. The theory of the four colors, with the magic of today's arithmetic, will be difficult to verify in another two or three thousand years. The assertion of the classics is that those who can be born with prehistoric knowledge are the only people in the world. The source of the canon cannot be verified, the author claims to be worried about the heavens and scattered people, and in the preface it is specified that those who receive this Tao should take on this mission and hand over Wuji to those who have prehistoric knowledge. ”

After a pause, Pang Jingran's eyes were clear, and he looked at Ren Pingsheng, "The key is that once you find it, this person must be surnamed Ren!"