Out of the backyard, Yu Sheng's footsteps were fast, with Huang Yuanwu and Huang Yuchen, quickly through the corridor, to a pavilion, under a rock next to the pavilion, gently flip a switch, only to hear a soft sound, a cyan stone in the pavilion made a slight sound, and slowly disappeared, revealing a deep hole below.

Yu Sheng didn't speak, and went down the hole directly, Huang Yuanwu glanced at Huang Yuchen, and without the slightest hesitation, he followed directly, and Huang Yuchen also hurriedly followed.

The cave was pitch black, the rest of his life groped on the rock wall on the left and right for a while, as if he had opened some mechanism, after a light sound, the stone behind him slowly rose, blocking the entrance to the cave that he had entered before, on the rock wall on both sides of the cave, suddenly lit up a few wall lamps, by the candlelight of the wall lamp, Huang Yuchen looked forward, only to see that this was a narrow passage, and he didn't know where it led forward.

Huang Yuanwu obviously didn't come to this cave for the first time, and when he saw this situation, he was not surprised at all, but urged Yu Sheng to move forward quickly.

The rest of his life carried the man in black, and several people walked forward quickly. This passage looks long and narrow, but it is not too long, and after walking not far, a stone chamber appears, saying that it is a stone chamber, which looks more like a dungeon.

Coming out of the narrow passageway, there is a small stone room in front of you, surrounded by wall lamps and candle flames, illuminating the entire stone room.

It was a square space, surrounded by prisons made of fine iron, and the whole stone chamber was damp and dark, emitting the smell of decay.

Yu Sheng took a few steps forward, opened the iron door of a prison, threw the man in black inside, and then turned his fighting spirit, red light appeared, and quickly counted points all over his body, and then walked out of the prison and closed the iron door.

Huang Yuanwu and Huang Yuchen sat in the middle of the stone room, there were several simple tables and chairs, which were covered with dust, and it seemed that no one had used this place for a long time.

Yu Sheng walked over and sat beside Huang Yuanwu, frowning, looking at the unconscious man in black in the prison cell, without saying a word.

Huang Yuanwu's thoughts were flying, this person ran to the city lord's mansion of Dongxuancheng in the middle of the night to steal the seal letter, afraid that the plan was not small, and he couldn't help frowning, and his thoughts were flying.

Huang Yuchen sat on the chair, holding two rune papers in his hands, and fell into deep thought, of course he had heard of the rune technique, but now he can't use it, and this kind of spell is extremely rare, and now that he has seen it with his own eyes, he is inevitably a little surprised.

The art of the rune is to depict the formation that was originally engraved in a fixed place on the rune paper, which is extremely demanding for the caster, not only to be extremely familiar with all the spell seals, but also to have a very strict affinity for the formation. From this rune paper alone, ordinary paper must not be used to depict spell marks, because the paper is fragile and cannot resist the power brought by spell marks, so the paper used to depict rune paper is specially made, fusing the inner skin of several fierce beasts, and repeatedly condensed to make it.

But the production of this rune paper is an extremely complicated process, but compared to the carving of rune paper, it is still simple.

Generally speaking, to depict a complete formation and achieve the desired effect, the number of spell seals should be at least seven. The technique that Huang Yuchen used to use to crack illusions before was one of them. It is extremely difficult to quickly condense the spell mark in the air with Dou Qi and explode in an instant.

If you want to engrave the spell mark on a small rune paper, the requirements for the spell are extremely harsh, at least you must be proficient in the word redemption formula, the condensation of the advanced word recipe is more difficult, the formation affinity is higher, and the spell mark that forms the formation must be made in one stroke, and there can be no break in the middle, otherwise the success will fall short. This alone would take thousands of exercises to achieve. Huang Yuchen was able to skillfully condense the formation in the air, originally because he was born with the formation, and he had a very high affinity with the curse seal formation, coupled with diligent practice, this was the only way to use a simple formation.

But the person who portrayed this spell was able to depict a complete formation on the rune paper, and this person's affinity for the formation and proficiency in the use of the spell were far above Huang Yuchen.

"That person slapped me just now, like thunder. After a while, Yu Sheng whispered.

"Thunder Douqi?" Huang Yuanwu was a little surprised, looked at the man in black who was still unconscious, then shook his head, and said, "This person is definitely not using Thunder Douqi, otherwise we won't be able to catch him with just a few of us." ”

Thunder Dou Qi is a kind of Dou Qi, cultivation is extremely difficult, ordinary cultivators cross their knees and absorb the natural power between heaven and earth into their bodies, and they can turn into Dou Qi. However, the cultivation of thunder fighting qi is much more complicated, except for the need for special exercises and special thunder attribute physique, condensing thunder fighting qi, but it needs to be cultivated when lightning and thunder roar, absorbing the thunder attribute breath between heaven and earth, entering the body, and transforming into fighting qi. There is no weather in the world where lightning and thunder roar every day.

Thunder Dou Qi is one of the most powerful of many special Dou Qi, although cultivation is difficult, but if you can reach the advanced level of cultivators, you can turn into thunder, and the speed is like thunder, coming in an instant. The attack is like the birth of the thunder god, and it is definitely not something that ordinary martial artists can resist.

"He is definitely not a cultivator of Thunder Dou Qi himself, and he can use the exercises of the Thunder Attribute, which seems to be related to this rune paper. Yu Sheng glanced at the rune paper in Huang Yuchen's hand and said quietly.

Huang Yuchen grabbed two pieces of rune paper, he had been reading the spell marks on them for a long time, although he knew the spell marks, but he had never seen the formation depicted on them. The electric flashes on this talisman paper from time to time confirmed the rest of his life's speculation.

"Yuchen, we are not familiar with the formation, you can tell me, what is the mystery of this rune paper. When Huang Yuanwu heard this, he also glanced at Huang Yuchen, his eyebrows furrowed.

Huang Yuchen exhaled lightly, took out a piece of rune paper and grabbed it in his hand, mobilized his whole body's fighting energy, slowly approached the rune paper, and slowly entered the rune paper.

Suddenly, a flash of lightning flashed, and a great power passed into Huang Yuchen's hand, shining brightly, and this light was dazzling, illuminating the entire stone room.

Huang Yuchen's heart froze, and he hurriedly waved forward with one hand, and a white light roared out, fleeting, only to hear a crisp sound of "boom", directly hitting the wall not far away, and the wall was actually blasted out of a hole by this blow.

The dust filled the surroundings, and the choked Huang Yuchen coughed a few times, and looked down at the rune paper in his hand, which had turned into black ash and fell from his fingers.

Huang Yuchen frowned, looking at the ashes, and then looking at the wall not far away that was blasted out of a hole by this rune paper, he was a little shocked. It is truly appalling that the power of this rune paper can be achieved like this.

"This blow is almost equivalent to a martial artist's advanced level. Huang Yuanwu also glanced at the wall and said softly: "If I want to beat the wall like this, I must also use all my strength." And this rune paper, but it can be done easily, it is really incredible. ”

"It's a spell that's so intricately described, I can't break it. Huang Yuchen said truthfully: "However, this spell is amazingly powerful, and it only needs a small amount of fighting energy to be poured into it to stimulate it, and the person who portrays the spell seal ......."

"Hmph. Yu Sheng suddenly snorted and said: "In the territory of Qitian, there are only a handful of such a formation powerful, there are only so few people, all of them are secluded in the mountain and forest sects, and none of them have joined the imperial army, and now it seems that this rune paper is probably from the hands of one of them." ”

Hearing this, Huang Yuanwu nodded lightly, his brows furrowed. The development of things seems to be beyond his imagination, how did the rune paper carved by this formation power come to the hands of such a man in black, and who is this man in black?

"Anyway, coming to Dongxuan City in the middle of the night, stealing my seal, and having such a precious instantaneous rune paper in his hand, I am afraid that the origin of this person is extremely deep. Yu Sheng said a word, looked at Huang Yuanwu again, and said, "Yuanwu, don't you want to say what happened now?"

Huang Yuanwu still didn't speak, just sighed softly, and looked at Yu Sheng's eyes a little tangled.

Something like this happened suddenly, disrupting his arrangement, if he guessed correctly, this man in black must belong to the camp of one of the other three kings, or Yang Lan's people. This person came to Dongxuancheng to steal the seal letter, and his purpose was about to come out.

"Now is not the time to discuss this. Huang Yuan Wu said: "Since this person can sneak into the Dongxuan City Lord's Mansion to steal the seal letter, I am afraid that other cities will also suffer from this." ”

"I think so. Yu Sheng nodded and said, "But even if you send a fast horse to remind you now, I'm afraid it's too late." ”

"With the cultivation of several other seniors, as long as the seal letter is in the mansion, it will not be easily taken away, and I am afraid that it will ......" Huang Yuanwu thought of a person, which gave him a little headache.

"I'm afraid that Senior Xiao is angry with you, so don't care about anything, just come over. Yu Sheng glanced at Huang Yuanwu and said, "Don't worry, everyone knows the temper of Senior Xiao, and his city lord Yin Xin is basically just an ornament." ”

"Having said that, after all, it is a seal granted by the empire, if you really lose it......" Huang Yuanwu had a big head, thinking about the possible consequences behind this, he had a little headache.

Yu Sheng waved his hand and said, "It's okay, this is nothing more than the little trick of the three kings, and they can't beat our prince head-on, so they just want to do it in the back." Even if they took away the city lord's seal, they would not be able to call on the resources of the Eastern Palace. The resources of the East Wangfu came up with the scope of the East Palace, in addition to the seal letter of the city lord, but also the seal letter of the East King, and the order of His Majesty, otherwise it is absolutely impossible. ”

"The enemy has a clear purpose this time, that is, he is coming for Yinxin, and he has only sent one person. Huang Yuanwu frowned and said: "This person doesn't look at his cultivation high, but he has a strange body, which is very difficult, their purpose is just to steal the seal letter, but for the time being, they can't think of any other purpose." ”

"Suffer!" After listening to Huang Yuanwu's words, Yu Sheng suddenly thought of something, immediately got up from the chair, came to the side of the prison in three or two steps, opened the prison at once, and pulled up the man in black.

"Damn!" Yu Sheng suddenly felt a little annoyed, turned the man in black still on the ground, turned around, and said to Huang Yuanwu: "One step less, this person has poison in his mouth, and once he is caught, he will be crushed immediately, and he will die at this moment." ”

When Huang Yuanwu heard this, he stood up, sighed, and said softly: "Brother Yu doesn't have to blame himself, since the other party can do this, he must be completely prepared, even if this person doesn't die, we can't ask anything." ”

Yu Sheng shook his head: "Just now my strength control is accurate, this person should be in a coma for about an hour, but he doesn't want to wake up so soon." ”

"It's possible that he had taken some kind of poison before he came. Huang Yuchen interjected on the side at this moment: "He was caught in the Sky Dance and was knocked unconscious by Brother Yu, so he definitely has no spare strength to do anything else." ”

"Anyway, this person is of little use now. Huang Yuanwu glanced at the man in black, turned his head and said to Yu Sheng: "Go out, this person will stay here for the time being, and call someone tomorrow to see if he had taken poison in advance." ”

After saying that, Huang Yuanwu walked straight out, Huang Yuchen looked at the back of his eldest brother, and a feeling of gloom came to his heart.