Sixianglou is also more cautious, although their landlord is very optimistic about Tang Long and thinks it is worth befriending, but after all, it is people's hearts and stomachs, and the landlord still arranges for people to secretly stare at the six-story building where Tang Long is located at an important retreat moment.

Tang Long didn't mind this.

At such an important moment, people let you in, and their sincerity is already very sufficient.

He took Xia Yulu and went straight to the sixth floor.

There are no windows on the sixth floor, and there is a black hole inside, only a few rays of light coming in from the staircase, which is a bit eerie.

No matter what Tang Long does here, he doesn't have to worry about the observation of outsiders, because the design of the Ancient Doctor Marquis is to prevent others from seeing how he cultivates the Dao of Stone Medicine, but not only can he not see it without a window, but the people outside also want to show the situation inside with treasures.

It is estimated that this is also the reason, many people think that there are treasures here, so there is obviously damage to the wall, but only some residues are left, and they are all new, so that Tang Long suspects that it may be made by Sixianglou, but in the end, he did not find the mystery.

"I'm guarding the staircase to protect you. ”

Xia Yulu just came in to take a look, then walked down the stairs and guarded on the fifth floor, protecting Tang Long and preventing others from disturbing him.

This is also one of the reasons why Xia Yulu is particularly liked by Tang Long.

Without Tang Long's instructions, Xia Yulu herself would find places that Tang Long couldn't reach, such as not being able to distract him, she would do it, saving Tang Long a lot of trouble.

Tang Long took a deep breath, he took out a stone needle and pierced it on the wall, and checked it with his heart.

I also want to see if there are some mysteries in the stone medicine path left behind in this chaotic ancient medicine marquis's cultivation retreat.

Except for the discovery that the walls of this floor themselves contained a large amount of strange stone essence, nothing was found.

As a practice to isolate outsiders from seeing through the treasures here, the ancient physician naturally used a lot of strange stones to build this layer, and later cultivated here for many years, and it is also a stone medicine Tao, invisibly, whether it is a medicine or a treasure, and the study of the stone medicine road, there will be a strange stone essence emitted into it, which makes the strange stone essence contained in this layer of walls is very amazing.

Judging by Tang Long, it is completely possible to refine a key.

He knew the three keys and had already understood the secret of the key to open the inner city, so he didn't need to deliberately refine the fourth key, and directly inserted the golden key in his hand that fused the three keys like a short sword into the wall.

Grab the essence and blend it with the golden key to form a complete key that can open the inner city.

Tang Long still took out three stone needles and inserted them in the three positions of the golden key, forming a triangle, and a dragon needle was inserted into the top of the golden key.

In this way, a subtle cycle was formed, allowing the golden key to grab the essence on its own, just as the second key of the Shadow Dragon Forbidden Land was integrated, and he sat down cross-legged and entered into a short-term retreat.

Get the key and you'll be able to enter the inner city.

The inner city is mysterious, whether it is dangerous or not, it is unknown, Tang Long still feels that it is better to improve his strength as much as possible.

It is to use as much time as possible for him to cultivate.

Three hours later, Tang Long, who was in retreat, suddenly felt that something was wrong with this top floor, and when he opened his eyes, he found that there had been a change here.

The Golden Key can no longer grab the Strange Stone Essence inside the wall.

Just because the surface of the walls, even the roof, and the ground, are covered by silver thumb-thick light, making this place feel like a prison.

This sudden change surprised Tang Long.

He had previously used the Stone Doctor Dao Stone Needle to investigate, but he didn't find anything abnormal.

Tang Long looked at it very calmly.

However, it was found that handwriting appeared on the north wall.

The top line of words is more delicate, like a woman's writing, and those words have a smart atmosphere, like a special treasure light condensed.

The content is: the wonder of the ancient is this.

There is another line of words below, which seems to be quite sloppy, as if it was written in a hurry, but it can still be seen that the person who wrote is very confident.

The content is: The saint of the Shengli clan is really extraordinary, she breaks my medical path with martial arts, and she is wonderful, and when I return, I will come to understand it again.

This was written by the ancient physician.

Judging by the meaning, he left in a hurry because of something urgent.

The last line was still written by the Holy Maiden Wanrou of the Holy Power Clan.

The content is: That's it, the eternal sleep, wandering outside the world, only to see a person who can talk about the Tao, but he went in a hurry.

Through the handwriting, Tang Long could even taste a hint of helplessness, as well as the indescribable bitterness and loneliness.

"Eternal sleep?"

"Could it be her?!"

Tang Long's mind came up with the sleeping girl in white on the life gem under the Forbidden Land of the Demon Spirit Clan's Purgatory Grass Sea.

He thought of the Shengli Clan again.

This is a distant race that has almost been forgotten by the Emperor Emperor of Medicine in the inheritance of the Emperor's Medical Dao, only a few words have been mentioned, because the Shengli race has been extinct for too long, and the Terran race at that time was only a race with relatively good strength, and it was not up to the top 100 races of the 10,000 races, not to mention that it took the Terran race to break into the top 10 overlord races from the top 100 to the top 10 later.

"Didn't I find out before, the Holy Maiden of the Shengli Clan Wanrou made her hands and feet on the wall, similar to the practice of mezzanine, and also moved her hands and feet on the outside, if it weren't for the Guò Stone Doctor's Dao, it would be difficult for outsiders to crack the power of the appearance cover-up, which confuses my exploration, and also makes it impossible for outsiders to explore the mystery. ”

"If you use the medical path to crack this martial art, it will take a long time. ”

"But why should I use the medical way? ”

Tang Long took out the Demon Power True King Sword.

It is impossible to judge the strength of this Holy Power Clan's holy maiden.

But if you want to compete with the Ancient Doctor Hou of Martial Dao and the Martial Dao, it must be carried out with the same strength, otherwise if it is exceeded, the Ancient Doctor Hou will not be able to compete with it at all, so what is the battle between the Medical Dao and the Martial Dao?

Therefore, the power on this wall is not very strong, at most it is equivalent to the martial arts title Wuhou realm.

Then it would be difficult for Tang Long to crack it by relying on his own strength, and it would be easy to use a celestial-level divine weapon.

He swung his sword and slashed.

Bang! Bang!

Three swords in a row, the silver light like a prison on the wall all shattered.

Originally, this was based on the strange stone essence hidden in the wall itself, and if Tang Long swung his sword and slashed it to connect with the wall, it would naturally collapse.

With the collapse of the silver prison, the power contained in it was like a flood that had found an exit, and it rushed to the golden key inserted in the wall, so that it was instantly perfected, and the portrait on the key became extremely clear, like a 10,000-meter stone statue.

Tang Long stretched out his hand and pulled out the golden key.

Now, you can go and open the inner city and enjoy the mystery inside to yourself - 16662 + d6su9h + 10100639 - >