Under the moonlight, Lu Yu sat on the stone, his shallow figure a little lonely.

At night in Moqiu Mountain, it is very quiet above the fourth district, but there are often the roars of demon beasts below the fourth district.

Lu Yu walked around the third district, and he didn't see anything unusual on the outside, but he always felt that something was wrong in his heart.

Dong Zhong came to Lu Yu's side and looked at the thousands of miles of rivers and mountains, feeling a little sad.

"When I was a child, when I was upset, I would climb to the top of the mountain, look into the distance, and shout out my heart's wishes to the mountains and rivers. ”

Lu Yu turned his head to look at him and asked, "Has anyone called you a madman or an idiot?"

"Yes, quite a few. ”

Dong Chong showed his nostalgia, it was the boyhood of his previous life.

Lu Yu smiled, he also had a past, but he didn't want to talk about it.

"You say, if the third district has an edge, where will it hide?"

Dong Chong asked rhetorically: "You can actually let me help you to enter the realm of gathering spirits in a short period of time, and that is also an opportunity, but why don't you do that?"

Lu Yu said with a smile: "Whether you help me or not, I will enter the realm of gathering spirits, so I don't have to be busy." ”

Dong Zhong frowned and said, "It seems that you are more conceited than I imagined." ”

Lu Yu got up and said with a smile: "Let's go, take a walk with me." ”

At night, the two wandered around the Third District like ghosts.

Except for a hundred holes in the ground, the vegetation in this area is very ordinary, and nothing unusual is seen.

Seeing but not knowing, there are generally two situations.

One is that it is too ordinary for anyone to ignore.

The second is that it is so profound that no one recognizes it.

Lu Yu sacrificed his martial spirit, communicated with the heart of grass and trees, and explored dozens of times before and after, but he didn't find anything special.

"How many holes, have you counted?"

Dong Zhong asked suddenly.

"One hundred, I've counted twice. ”

Dong Zhong questioned, "One hundred, why did I only count to ninety-nine?" ”

Lu Yu was stunned for a moment, and said in surprise: "What you said is true?"

Dong Zhong snorted: "Why am I lying to you?"

Lu Yu's eyes lit up, and he blurted out: "Let's count again, this time we must count accurately." ”

The two of them chose the starting point and re-walked the third district.

"A hundred. ”

"Ninety-nine. ”

Lu Yu and Dong Chong glanced at each other, and they both felt very strange, why was there one missing?

So we took a hundred sticks of wood and put them in front of each hole. ”

Dong Chong said: "Okay, I don't believe that there is such an evil thing." ”

After the two of them prepared, the second round began.

An hour later, the two returned to the starting point.

There is not a single wooden strip left in Lu Yu's hand, but there is still one left in Dong Chong's hand.

"Hell, how could this be?"

Dong Chong's face was gloomy, and Lu Yu was also full of surprise.

"You go back and see Lin Feng first, I have to think about it. ”

Lu Yu sat on the stone, and the whole person fell into deep thought.

In the cave, Lin Feng took two demon pills, and with the help of the power of Dafang Ding, his strength was rapidly improving.

Dong Zhong stood aside, his eyes were a little complicated, he was dying and accepting apprentices, is this a kind of compensation?

In the night wind, Lu Yu has been thinking about that sentence in his mind, seeing but not knowing, unparalleled in the world, how to understand this?

Lu Yu fell into confusion, those words kept rolling in his mind, and a ridiculous thought suddenly flashed in his heart.

Seeing but not knowing, the world is unparalleled.

This double represents an even number, and it is not difficult to think of it.

But if the word 'and' represents two, and the word 'literacy' represents four, or ten, and they are regarded as numbers, will it be some kind of combination of numbers?

See 'two' not 'four', or 'two' not 'ten'.

There is no one in the world, and the unequaled is a singular number, with two, four, and ten, what information can be evolved?

Lu Yu stood up suddenly, his eyes flashed, and he began to observe the distribution of these holes, from bottom to top, there were seven rows, because of the large and small bottoms, the number of holes in each row was different.

"Wushuang is a singular number, first exclude two, four, six rows, see two not four, will this 'see' be the interval between them?"

Lu Yu was calculating, constantly moving his body.

"In addition to the second, fourth, and sixth rows, there are still one, three, five, and seven rows, and there are two but not four, or two and ten, and the first, third, five, and seventh rows seem to be satisfied. ”

Lu Yu frowned, if this is a puzzle, it is really puzzling.

But Lu Yu didn't give up, he continued to expand his thoughts, and soon made new discoveries.

"There is no match in the world, and there is no match in the bottom, which is only in line with the seventh row, because there is no eighth row behind the seven, and behind the first, third, and fifth rows, there are exactly the second, fourth, and sixth rows, which are all doubles. ”

Lu Yu was a little excited and came to the seventh row.

"Eighteen holes, which one will it be?"

There are eighteen holes in the seventh row, which go around in a circle.

Lu Yu calculated for a long time, and gradually became eyebrows.

"That's the ninth hole, but which of the eighteen holes in a circle is the first?"

Without a starting point, it is difficult to calculate, and Lu Yu is in a predicament.

At this time, the sky dawns and the night fades away.

Lu Yu looked at the sky and suddenly felt a little dazzling.

"The sun is rising... Yes... I understand. ”

The first rays of sunlight from the east shine on Moqiu Mountain, and the entrance of the cave facing the rising sun perpendicular to it is the first cave.

Lu Yu stood in front of the entrance of the cave and said to himself, "If you are on the left, it should be this." ”

Lu Yu turned around for half a circle, came to a cave, observed for a moment, and didn't see anything unusual.

Lu Yu drilled into the hole, it was very dry, the depth was not more than ten zhang, but there was a skeleton of a demon beast.

Lu Yu was just about to go up, when he suddenly felt an alarm, and subconsciously dodged to the side, and a ray of light shot through his ear, cutting off a bundle of his hair.

Lu Yu's heart was shocked, and he didn't expect that there was danger here.

Lu Yu leaned his back against the cave wall, and his afterglow paid attention to the situation in the cave, and on the skull of the demon beast, there was a strange shining point, facing the entrance of the cave.

If anyone is not careful, they will be hit by the ray of light when they enter the hole.

Lu Yu sacrificed the small grass martial soul, and there was a change in the Ten Thousand Law Pool, and nine rays of light flew out of the pool, turning into a silver snake in mid-air, flying towards the skull of the demon beast.

At that moment, a ray of ghostly light shot out, but it was swallowed by the silver snake's mouth.

Immediately afterwards, the skull of the demon beast shattered, and the hole collapsed, frightening Lu Yu to flee quickly.

The martial soul flew out and entrenched on Lu Yu's head, and the silver snake flew in the Ten Thousand Law Pool, containing a ray of light in his body.

"This breath ......"

Lu Yu suddenly thought of Zhang Ruoyao, the woman in red who gave the bow, who was injured by a light in the third district and almost died.

Could it be that the light that hurt her martial soul was this ray of light in the Ten Thousand Law Pool?

"That's right, she must have been here in the first place. ”

Lu Yu came to his senses and paid close attention to the situation of the ray of light in the Ten Thousand Laws Pool, but found that two words appeared on the surface of the pool-Bliss.

Lu Yu's heart moved, and a black skull mark appeared in the palm of his right hand, and the Bliss Knife flew out of the skeleton's right eye, with nine colors and eighteen lights all over his body, and the dark blue on the tip of the knife bloomed, like lightning whistling, actually swallowing the ray of light in the Ten Thousand Law Pool.