Being able to connect to the cave gave Nie Chen a lot of convenience. At this time, the transfer of the body of the giant spirit tree was only completed in an instant. The huge trees, along with this piece of land, were included in the Purple Cloud Cave Heaven by Nie Chen and placed in the very center of Qianyue Lake.

This giant spirit tree is an ancient spirit tree, and it exudes a special aura within its growth range. With him sitting in Qianyue Lake, there are also many benefits to the people there. Even if they can't turn into immortals, they can still prolong their lives and avoid diseases.

Taking away the giant spirit tree, Nie Chen turned around and wanted to return, but was directly besieged by more than a dozen warships. In the bow of each battleship, there was a special device that emitted a strong sonic vibration.

Nie Chen glanced at it, and his face showed a little stunned. This vibration is very strange, it can shake the space.

If it is an ordinary monk, under this shock, there is really a danger of being trapped. But for Nie Chen, this shock was really nothing. What she was more interested in was how these people got this kind of thing, which actually had some effect of the monk's formation.

Nie Chen stopped his steps and landed on top of one of the battleships. Completely ignoring the bullets fired by the other side, he went directly to the command room and found the supreme commander of the battleship.

"Tell me, how did you get the things on the bow of the boat?" Nie Chen asked.

"That's how we found it in an old book. ”

The supreme commander of the battleship was a rear admiral of the Confederates. In the face of Nie Chen's inquiry, he didn't dare to hide it in the slightest, and answered the question honestly.

As for resistance, he didn't even think about it. Nie Chen walked in under the rain of bullets, and that was already the strongest force they could use.

In addition, only high-powered shells or missiles can be used. But Nie Chen was already on top of the battleship, and if those weapons were really used, it would be tantamount to suicide.

"Where are the ancient books, and where did you find them?" Nie Chen asked.

"Books are a secret base in our Federation, which is heavily guarded and guarded, and ordinary people can't break in. As for the origin of the book, it is from your Huaxia country. I don't know the exact details, but you'll need to go back and ask your own high school officials. ”

"Okay, I got it. Nie Chen nodded, turned around and walked out of the battleship, and began to return to Huaxia. She was going to find a few high-level people and ask about the source of the book.

That ancient book, Nie Chen did not continue to pursue. It was closely guarded, and it took a lot of time to find it. Nie Chen felt that the book records were limited, and it was the place where ancient books were discovered that it was more worthy of his own exploration.

After a short time, Nie Chen returned to China. Without delay, he went straight to the fortress of the capital and entered the center of the country.

There was a tight position, but it was not possible to stop Nie Chen. After a little search and interrogation, Nie Chen quickly found a target, and the president of an academy of sciences participated in the events of that year.

The dean is studying today. Nie Chen found his address and rushed directly to his home.

"I'll give you whatever you want, don't scare my family. The dean spoke, a look of pleading on his face.

The dean was in his sixties and looked kind. He belongs to the core figure, so he naturally knows what happened back then. The moment Nie Chen entered, he recognized Nie Chen's identity.

"Don't worry, Dean, I won't hurt you. I've come to you just to ask about an ancient book. Nie Chen explained slightly.

"So you said that. The dean breathed a sigh of relief, he was really afraid that Nie Chen would make other demands and put himself in a dilemma.

"Yes, I want to know the address where the ancient book appeared. ”

"There's no problem with that. Actually, we wanted to enter that place too, but unfortunately there were many traps inside, and we tried many times and lost a lot......"

The place where the ancient books were unearthed is a hill 100 miles away from Kunlun Mountain. The peaks are ordinary, and there is nothing special about the appearance. However, when a person or animal intrudes into the area of the hill, it will be trapped in it instantly, and it is easy to get out.

This strange thing quickly attracted the attention of the relevant departments. They sent a number of experts to find out the secrets.

After nearly two years of excavation, everyone finally has a little harvest. From a corner of the mountain, several ancient weapons were dug up, as well as several ancient books.

They have studied these things for a long time, but it is difficult to make a breakthrough. Even those ancient books are shrouded in strange powers, and they can't be opened easily.

It was also at this time that the news leaked and spread abroad. Foreign powers put pressure on those things. The country was forced to surrender a few gains and calm the turmoil.

It was at that time that I got the ancient book of the Confederation. Later, they used some methods, and finally opened the ancient book and got the record on it.

"I'm going to take a look at the others, especially the weapons. Nie Chen spoke.

"Well, well. The dean nodded, knowing he had no way to refuse.

Nie Chen didn't want to waste time, so he flew directly with the old dean and soon arrived at an important place in the Academy of Sciences. The few weapons I got before were kept in there.

With the dean leading the way, Nie Chen was not hindered too much, and went through layers of defense to the deepest part. Behind a heavy alloy door, what weapons were seen.

There were three things, a short sword and a short knife, plus a rusty iron axe. Nie Chen glanced at it and already recognized that this was a magic weapon used by the monk. However, their grade is not high, and they can only be regarded as high-grade spiritual weapons.

But there was one thing that surprised Nie Chen, on top of these spiritual weapons, there were still spiritual power fluctuations.

You must know that this world is produced by cutting off aura. Even monks will be suppressed and consumed, and eventually become mortals. And these spiritual weapons, after so many years in this world, should have become waste products long ago according to common sense.

"Or maybe it has something to do with that hill. Nie Chen thought in his heart.

"If you're interested in that mountain, I can take you there. Nie Chen hadn't decided yet, but the dean took the initiative to speak.

Nie Chen was stunned: "Do you really want me to go?"

"We've been studying for a long time, but we can only wander around the periphery of the peaks. If you go further inside, you will be moved by an inexplicable force and pushed to the edge of the mountain. If it is tried many times, it will even cause great harm to the human body, causing trauma, fractures and even death. ”

"So you want me to go and help you solve the mystery of this year?" Nie Chen chuckled.

"We guess that there is a special power in there, and it takes special people to be able to enter. And you can fly into the sky, and I believe that it is not too much of a problem to enter that place. The dean smirked, with a bit of anticipation on his face.