The underground palace, the altar platform, is constantly rising upwards.

Nalan Su said solemnly, "It is rumored that he is the founder of the martial arts and the owner of this 'Xuanwu Vault'. ”

Song Duanyu said, "Could it be that this 'Xuanwu Secret Collection' is his tomb?"

Nalan Suxiu bent his fingers and slammed Song Duanyu's head, "It is said that the Blue Emperor has become an immortal, and he can't say anything." ”

A moment after the two of them spoke, the altar platform had already risen to the second level.

"It's time to reach the second floor of the Xuanwu Underground Palace", Nalan Su stepped out. As soon as her feet hit the ground, the candles on both sides of the road were lit.

Song Duanyu followed closely, and in front of them was a huge mural that recorded the structure of the entire 'Xuanwu Vault'. In addition to the underground corridor, the Xuanwu Vault has a total of 18 floors from bottom to top, the bottom three floors are the Xuanwu Underground Palace, and the remaining 15 floors are collectively called the 'Xuanwu Vault'.

"Sure enough," Song Duanyu exclaimed, "This project is too huge." ”

"You are wrong, according to legend, the small mountain was built on the basis of this pagoda by man. ”

Song Duanyu turned his gaze to another mural. This mural is the floor plan of the second floor of the "Xuanwu Underground Palace", with the place where the two people stand as the central main hall, with a total of four side halls in the north, south, west and east.

Suddenly, Naransu's legs and feet weakened and she fell down, and she spun her sword out to support the ground, half-kneeling on the ground.

"What's wrong with you?" asked Song Duanyu eagerly.

Naransu's cheeks were originally reddish, but now they are a little black, and her lips are very pale, which seems to be a recurrence of dark injuries caused by exhaustion.

"The Gu of the alto charm before almost went mad, consumed too much qi and affected the old wounds," Nalan Su said weakly.

Seeing Nalan Su say this, Song Duanyu's nose was slightly sour. Although Nalan Su said this, he knew in his heart that Nalan Su was injured by rashly using his true qi in order to save her.

"Let's go to the West Temple," Naransu said, "and what I want should be there." ”

Judging from the annotation of the map, the west hall is used to store ancient naturalist books and martial arts classics. Nalan Su knew in her heart that the recurrence of her old injury was due to a problem with the moves she cultivated.

"Su Nu Thirty-six Road Flying Immortal Sword" is divided into the first eighteen paths and the last eighteen paths, Nalan Su only practiced the first eighteen paths before, and she entered this 'Xuanwu Secret Collection' in order to find the last eighteen road swordsmanship.

Song Duanyu helped Nalan Su to walk towards the west hall, the second floor of this Xuanwu underground palace was much more luxurious, at least the lamp stands on both sides of the road were carved with fine ornaments, and the patterns of foreign beasts on the walls pulled out long shadows under the orange light.

The two stepped on the shadows and crossed a corridor, and a small stone pavilion came into view. This pavilion is not big, you can walk through it in about three steps, but the pavilion lies in the middle of the road, which cannot but make people feel strange.

Song Duanyu said, "Miss Nalan, this pavilion is a little weird. You are waiting for me here. ”

As he spoke, he lowered Naransu against the wall, and then cautiously approached the stone pavilion. Half a foot of snow is already in his hand, although Song Duanyu has not learned martial arts, but he has also reached the level of Xiaowu Jiupin after many years of standing on the pile and practicing qi.

On the rivers and lakes, the martial arts are divided into two levels: Xiaowu and Dawu, both of which are based on the end of the nine products and the respect of the first product, and the cultivation of Xiaowu is the extreme, which can be among the realm of great martial arts. Like Nalansu, at the age of twenty-six, she is among the top 50 in Xiaowu, and she can also rank among the top 50 in the entire Jianghu in terms of qualifications and understanding.

Song Duanyu's mind was like a filament on a spider web, and even the slightest flow could make his tense nerves tremble slightly. He approached the stone pavilion, in which there was a stone table, and eight small stone benches were placed beside the stone table.

He stepped on the stone steps, and there was no movement in the pavilion. Song Duanyu stepped on another step, and after making sure that he was safe, he walked to the stone table. There was a lot of dust on the stone table.

"There seem to be words on this", Song Duanyu vaguely recognized the lines of several fonts by the dim lights on both sides.

Song Duanyu was about to brush off the dust on the stone table, but at this time, Nalan Su outside the pavilion shouted with all his might, "Don't touch that stone table." ”

But after all, it was too late, and Song Duanyu had already wiped the dust off the table.

A line of vigorous and simple big characters appeared on the table - "Blue Emperor Eight Mirrors and Four Edges Sword Formation".

Between the lightning and the stone fire, the floor under the eight small stone benches suddenly emptied, swallowing the stone benches, and instead eight blue-green long swords emerged, all shooting towards Song Duanyu together. Song Duanyu rolled over and dodged the blow.

But these eight flying swords seemed to have spirituality, twisted around in the air, and shot at Song Duanyu. Outside the pavilion, Nalan Su said, "This is a set of sword formations, you have already entered the formation, and if you want to come out, there is only one way to break the formation." I can help you. ”

The flying sword shuttled back and forth, and Song Duanyu clumsily danced the half-foot snow in his hand. Half a foot of snow is a good knife, but it really doesn't play any role in the hands of Song Duanyu, a foreign man who has never practiced knife skills. Such a treasure knife is no different from a kitchen knife.

The fluctuations caused by the collision between the blade and the blade of the sword were transmitted along the body of the half-foot snow knife to the hilt, shaking Song Duanyu's mouth in pain. Fortunately, Song Duanyu's hard work over the years allowed him to instinctively stabilize his body in danger, but the sword blade finally cut through Song Duanyu's clothes, and blood splattered on the stone table.

"There are a total of eight small stone benches around the stone table, corresponding to the eight directions of Zhen, Li, Dui, Kan, Xun, Kun, Qian, and Gen", Naransu's eyes lit up, "You block those flying swords in the order I said." ”

"The first one is the Gen position", Song Duanyu turned sideways slightly, and the flying sword slid against his clothes. When Song Duanyu stood still, he turned his hand to block half a foot of snow sideways.

I only heard a "bang", and the flying sword fell to the ground.

"The second is to leave the position!"

Song Duanyu rolled over and rolled on the ground, and the stirred dust and the dim light blended together. Song Duanyu slashed with a backhand when he left his position, and cut off one of the flying swords. There were only six flying swords left.

Song Duanyu's expression was excited. Although sweat soaked through his clothes, he tightened his grip on half a foot of snow.

According to Nalan Su's instructions, Song Duanyu stood in six directions successively and shot down the remaining six flying swords.

At this moment, the center of the stone table suddenly opened, and a small platform slowly rose from it, and a book was placed on the platform.

Song Duanyu picked up the book, the title of the book was "Three Inches of Green", which seemed to be a trick. He walked out of the pavilion and handed the book to Naransu.

Nalan Su took "Three Inches of Green", and after reading it a few times, "This is a good book of body law, you can keep it." ”

Song Duanyu took "Three Inches Green" into his arms, walked through the pavilion with Nalan Su, and came to a library.