Lu Mingshu lay on the bed and did not fall asleep until late at night.

Outside, the moonlight was abundant, and a glimmer of light shone right through the small hole that led to the heavenly light, shining on her window.

Over and over again, she wondered what she was going to do. The advantage of staying here is that you can not be disturbed, but the disadvantage is that having a master is almost the same as not having a master. If she goes to the lower house, she can practice martial arts, but there is no one to take care of her.

It didn't sound like there was any other choice, she wanted to practice martial arts, so she had to go to the lower house. However, she was afraid that she would not think well and make the wrong choice.

Thinking about it, I fell asleep in a daze.

After some time, she sat up in a daze.

The inside of the house was dim, but the outside was surprisingly bright.

Lu Mingshu got out of bed and opened the door.

The cave that used to be dark is now full of light.

She was attracted by the light and walked over step by step.

Unconsciously, it goes deeper and deeper.

Inside the cave, the stone paths crisscross and are densely packed like cobwebs. But she didn't hesitate to step on her feet as if she had a goal.

Walk through stone paths, through stone halls, and finally stop at the hollowed-out mountainside.

The empty mountainside is wider than the largest square of Jiuyao Palace, and there are no furnishings around, only a skeleton sits on the stone platform in the middle.

The skeleton, seated cross-legged, sits on a stone platform. The body was empty, there was nothing, the palms of the two hands were stacked upwards, and there was an object on it, which was faintly shining.

Lu Mingshu stretched out his hand, and the thing flew in front of her.

The object is quadrangular in shape and has six sides, and is an angular cube. Amazingly, it is made up of many small square wooden blocks that are exactly the same. Each row is nine, each column is nine, and there are a total of nine hundred and eighty small squares on one side. Each small square is carved with concise patterns, including mountains and rivers, animals and plants, and indescribable figures. The pattern was also filled in with colors, Lu Mingshu counted them, and there were six colors, namely red, yellow, blue, green, black, and white.

She reached out and touched it gently, only to find that the small squares could be twisted. Eighty small squares can be twisted on one side, whether horizontal or vertical, outer or middle. With each twist, the combination of small squares on each side changes.

Now, these little squares are messy in color, mixed together, and look particularly messy.

Looking at it, Lu Mingshu suddenly thought, six sides, six colors, can it be turned into one color on one side?

That's what she thought. It's just that there are ninety-nine eighty-one pieces on each side, and every time it rotates, it will cause chain changes, and it is so difficult to put all six sides into a unified color!

After a while, the colors became more chaotic.

Lu Mingshu stopped his hand and looked at it carefully.

If one side is rotated, the two small squares are the same, but the other piece is taken away and turns into a different color...... She thought one step at a time, and her thoughts extended all the way.

Time seemed to have passed for a long time, but Lu Mingshu didn't realize it at all, she didn't know whether she was hungry or thirsty, and all her attention was on this wooden block.

No, it's too much......

By the way, it can be divided into several areas and then co-located. There are a total of eight pieces that can be seen on three sides, which are easy to separate. There are also two sides that can be seen......

A little bit of clarity.

In the stone house next door, Liu Jizhen slept until midnight and suddenly woke up inexplicably.

Although he has broken his meridians and is already half-useless, he studied hard and practiced hard in his early years, and the intuition of a master is still there.

Not knowing where his intuition came from, Liu Ji really thought about it and got out of bed to put on his clothes.

Pushing open the door of the stone house, the cave is especially bright today. The moonlight of the full moon shines through the regular holes in the overhead, reflecting the light all over the room.

Liu Jizhen is accustomed to this scene.

This Tongtian Pavilion is not an ordinary place, it was built by the patriarch of the Jiuyao Palace in the early years. That ancestor was an extremely talented figure, he was one of the five grandmasters back then, and he was famous all over the world.

It's just that this Song Patriarch didn't know what he was stimulated, so he ignored everything in his later years, concentrated the strength of a faction, hollowed out this partial peak, and built this Tongtian Pavilion to collect books from all over the world. After that, I never went out again, and just sat here.

What's even more strange is that he left his will, did not move his body, did not need to be buried, and only closed the place where he usually visited enlightenment and used it as a tomb.

For this reason, the previous generations of disciples regarded Tongtian Pavilion as an important place for the sect, and the head of the courtyard was concurrently served by the head of the sect, and the Dharma protectors and elders all wanted to enter the Tongtian Pavilion to see the place where the ancestor had attained enlightenment.

In their thoughts, the grandmaster of the Song Patriarch generation is the most accomplished figure in Jiuyao Palace, and he must have his reason for acting like this. Perhaps, in this Tongtian Pavilion, there is a secret to achieving a peerless master.

It's a pity, generation after generation, they haven't discovered any secrets. This Tongtian Pavilion is really a library pavilion, although the collection is rich, there are many rare and unique books, but these things, what is the use of them warriors? That is, there are some secrets, and the useful ones have been copied out, and what is left is either a remnant or a waste product that has been verified to be useless.

Over time, this Tongtian Pavilion was abandoned, and even the head of the courtyard was no longer set up, only guarded by someone - after all, this place was the place where the ancestor was buried, so he had to have a tomb keeper, right?

Before the meridians were exhausted, because Liu Jizhen did not want to take over as the head of the house, the elders of the sect negotiated and gave him the position of head of the Jingyi Academy. The matter of receiving rewards and punishments in Jingyi Yuan is light, but it is an important position of the first class. After he abolished the meridians, it was impossible for him to take on this position anymore, but he just went to work, and it didn't sound good, so someone had an idea and picked up this Tongtian Pavilion master who was drowned in the dust.

Liu Ji is really a very serious person, especially after abolishing the meridians, his temper is even more eccentric. Since he was made the head of the Tsutenkaku, he came to the Tsutenkaku to sit in the town, although there was nothing to do.

He exiled himself, and the hostile faction rejoiced, and those who were originally from the same faction as him saw that he was stubborn, and after persuading him several times, they stopped persuading. Everyone is very busy, it would be good to take care of the past situation, a wasted Liu Jizhen, there is really no need to bother more.

Liu Jizhen pushed open the door next door and found that his named little apprentice was not indoors.

He frowned.

In the middle of the night, he had closed the stone door of the cave, and she couldn't get out.

I searched the two rows of stone houses on the left and right, but I didn't see her figure.

Liu Jizhen's brows furrowed even tighter, but he could only look into the depths of the cave.

The Tsutenkaku Pavilion was built very large, like an underground palace. Liu Jizhen held the torch and looked for it all the way along the main road.

Half an hour later, he stood in front of the tomb, his face changing dramatically.

The door of the tomb was opened!

This tomb door has never been opened since the ancestor drove the crane, and even the tomb door was closed by the ancestor himself.

He took a deep breath and stepped into the tomb.

Then, he saw that in the empty tomb, next to the stone platform where the patriarch was sitting, Lu Mingshu fell there.