Before the old man entered the main hall, the stone sword suddenly emitted a terrifying sword light, and he wanted to kill the old man on the spot.

The old man looked at the sword light of the stone sword, and his body changed drastically in an instant, and the flesh and skin and the clothes on his body were all in the shape of jade in an instant, as if the whole person had turned into a strange jade statue.

The sword light shot on the old man's jade-like body, and it was shattered by the old man's hand.

"Fear!" Zhou Wen was surprised in his heart, this old man was able to break the sword light of the stone sword, and he was obviously a fear-level powerhouse.

Without hesitation, the stone sword unsheathed again, slashing at the old man again with an invisible sword light.

The old man with a jade statue suddenly stretched out his hands to clamp the stone sword, and for a while he was in a stalemate, and the stone sword could not stab down for half a minute, but the old man was also difficult to repel the stone sword, and one person and one sword were frozen there.

"Who is this old guy, who can actually carry the power of a stone sword!" Liuyun said in surprise.

Zhou Wen didn't say a word, and as soon as his body flickered, people had already rushed into the palace.

Liuyun also reacted, gritted his teeth, and rushed into the palace.

The stone sword and the jade statue were in a stalemate, and they didn't have the strength to stop Zhou Wen and Liuyun anymore, and the two of them had already rushed into the hall with bamboo slips in the blink of an eye.

Zhou Wen saw that the old man was still in the stalemate of the stone sword, so he didn't rush inside, and casually took a roll of bamboo slips from the shelf, opened it and looked at it.

Seeing that what was written above turned out to be the provisions of the law, and then I randomly picked a few bamboo slips on different shelves to read, and all of them were legal provisions, I couldn't help but feel a little strange.

"I heard that Emperor Qin believed in the art of immortality preached by warlocks back then, and I originally thought that the books he was buried with should be something related to alchemy and immortality, but I didn't expect it to be the Book of Law. Zhou Wen looked through it casually as he walked, and found that there were no records related to alchemy in these books, all of them were some laws.

"Little junior brother, don't you leave quickly, what's so beautiful about those bamboo slips?" Liuyun also flipped through a few volumes, and saw that they were all legal provisions, so he was not interested.

Zhou Wen put down the bamboo slips, quickened his pace, and Liuyun walked to the back of the palace, and saw that there was another gate there, but it had been opened, and it was obviously the masterpiece of the Jingdao Immortal.

There was a jade screen inside the door, and the two of them bypassed the screen, and they were quite surprised by the sight that caught their eyes.

The ground was littered with shattered pieces of bronze and jade, as if they had experienced a great battle, but there was no human figure in sight, and there was no portal to other places.

"There may be a secret door. Liuyun said as he fumbled around the wall, trying to find out where the secret door was.

"Don't look for it, look at the water in the pool, if there is something wrong. Zhou Wen pointed to a pool and said.

The water in the pool was black, like ink, but it didn't smell bad, so it wasn't because it had deteriorated.

"You mean, there's a road down there?" Liuyun looked at the pool, but the water inside the pool was too dark to see anything clearly.

"I don't know if there's a road down there, but there shouldn't be a secret door in this palace. "Zhou Wen has already scanned the entire palace with Di Ting, if there is a secret door, it is impossible for him not to find it.

"Do you want to go down?" Liuyun hesitated.

"I'm afraid I can only go down. Zhou Wen said and glanced outside, only to see that the old man had rushed in.

Unlike the Jing Dao Immortal who rushed in before, the stone sword actually chased in, and the sword light on the stone sword almost destroyed everything wherever it went.

Zhou Wen no longer hesitated at the moment, and jumped into the pool directly with Ya'er.

The Canglong Qiqi Technique on his body was activated, and it seemed that there was a Canglong surrounding his body, repelling those black waters from his body.

Liuyun also gritted his teeth and jumped down with Zhou Wen.

Strange to say, the black water in the pool seemed to have no buoyancy at all, and as soon as they jumped in, they fell rapidly, and the speed of the fall became faster and faster, as if there was a force pulling them below.

Boom!

When Zhou Wen and Liuyun were on the ground, the powerful impact almost broke their leg bones.

Before they could see the environment in front of them clearly, two more shadows fell above their heads, one was the jade-like old man, and the other was the stone sword.

As soon as the stone sword fell, thousands of sword lights radiated from the sword's body, enveloping all the nearby areas.

Zhou Wen and Liuyun both dodged quickly, Zhou Wen turned over and hid behind a huge object, which blocked the sword light of the stone sword, and watched the sword light bombarded the thing like a torrential rain, but it didn't smash the thing.

Only then did Zhou Wen realize that the thing he used to take refuge in turned out to be a huge alchemy furnace, which was more than ten meters high, and the whole body seemed to be made of copper.

However, it is not the bronze that was often seen in that era, but a kind of copper.

The sword light slammed into the copper Dan furnace, making the Dan furnace crash into chaos, but it didn't hurt the Dan furnace in the slightest.

Zhou Wen looked inside the Dan furnace and found that the inside of the Dan furnace was filled with flames, the flames inside were already blazing white, and the temperature was unimaginably high, but the copper Dan furnace was only warm to the touch, and there was no burning feeling.

"Strange, I've never heard of a Dan furnace catching fire inside, it should be a burning flame underneath to heat it, but this Dan furnace is on fire inside, what is the reason?" Zhou Wen felt a little strange.

Shi Jian was fighting with the old man, and Zhou Wen took the opportunity to look at the nearby environment, and was surprised to find that this was actually the top of a mountain.

In the dark and huge underground space, a mountain peak occupied a large part of the space, and they stood on the top of the mountain, only twenty or thirty meters away from the stone dome above their heads.

The surroundings were dark, because the space was too large and there was no light, only the flames coming out of the wind holes of the copper pill furnace were emitting light, which made the distance darker.

The range that Di Ting could perceive was all hollow, until there was a cold wind blowing from farther away, and the wind was still very strong, and the clothes on Zhou Wen's body were all attached to his body, and the cold wind drilled straight into the cracks of the bones.

"Where did Jing Dao Immortal go?" Zhou Wen hugged Ya'er, turned his back to the cold wind, and searched for a while, but did not find the figure of Jing Dao Immortal.

Liuyun also rushed to the back of the Dan furnace, and after converging with Zhou Wen, he said: "There is nothing on the top of this mountain, there is only one Dan furnace, do you say that inside this Dan furnace, will it be the immortal pill refined by the emperor?"

"I guess not, otherwise how could the Well Dao Immortal not be here?" As Zhou Wen spoke, he suddenly heard a loud rumbling sound in the distance, as if it was thundering.