Gu Xu stood under this huge city, looking up at the huge city wall spirit wall, with a little cold color on his face: "The human race built the city, blocked the demons, and trapped itself. ”

Gu Xuan can infer from the countless traces on this city that this huge spiritual wall has shielded the human race from many dangers, but it has also made the human race gradually lose a lot of enterprising spirit.

"Boy, don't wander around the spirit wall, go to the library as soon as possible, get a technique, or cultivate a powerful spell, and the Great Demon Clan will attack again. ”

"That's right, there is a magic circle set up by a human race master in the spirit wall, and you can absorb the Qi of heaven and earth to cultivate, and seizing the time to cultivate is the main thing. ”

When Gu Xuan walked around, the two soldiers patrolling in this area saw Gu Xu, and couldn't help but remind them, they patrolled for a few hours, and when they saw Gu Xu, they couldn't help but remind them.

"Thank you two seniors!"

Gu Xuan looked at these two seniors, smiled and thanked them, no matter what, both of them were kind-hearted, but after being reminded by the two of them, they wanted to go and see how this library was doing.

Asking all the way to the past, Gu Xuan walked through the streets and alleys, and once again saw a huge city, this city was even larger, and the countless magic circles on it flashed with Dao brilliance, and countless traces told the horror that had been experienced.

Outside this huge city wall, Gu Xuan found a huge palace, stretching for dozens of miles, surrounded by huge platforms, on which were sitting cultivators one after another.

When Gu Xu came to the periphery of this palace, he was illuminated by a huge demon mirror, but fortunately, he had many treasures on his body, and he was not afraid of being discovered.

Gu Xuan also saw clearly, this holy city is divided into inside and outside, loose on the outside and tight on the inside, I am afraid it is more difficult to enter the inner city, and the many breaths emitted by this inner city have clearly told him that there are a large number of masters among them.

"Boy, entering the library to select exercises, only allowed for one month, after one day, you must come out, after selecting exercises, you can practice on the platform for three months, and then you will fend for yourself, and you are not allowed to stay any longer. ”

A young man in a robe looked at Gu Xuan lightly, his attitude was extremely proud, and his expression was a little cold.

Gu Xuan swept this young man, but the cultivation of the peak of supernatural powers, but this attitude and temperament are like the old monsters of the immortal realm, Gu Xuan smiled dumbly in his heart, and did not pay much attention to it, and walked straight in.

When Gu Xuan raised his feet and walked, another guard boy suddenly shouted: "You are going the wrong way, walk in from the right, don't go the wrong way." ”

As the boy spoke, he raised his hand and removed the seal from the gate on the right.

"Right?"

Gu Xuan moved slightly, his mind swept away, the aura emitted by this side door was mostly obedient and evil, this seal had obviously not been opened, this time it was opened, his eyes swept down the two teenagers, and saw a trace of ridicule and mockery in their eyes, and suddenly understood in his heart, a sneer appeared at the corner of his mouth, but he didn't mind this, even if there was a sea of swords and fire in front of him, he couldn't stop himself, but he showed a little curiosity about the thing on the right.

After Gu Xuan left, the young man and another caretaker looked at Gu Xu's back and sneered: "An outsider in the middle stage of supernatural power still has such an attitude, he deserves to be unlucky. ”

"Hehe, yes, the person who came here, that one is not respectful to us, this guy is obviously from the flood wilderness, and he still thinks that he is a master of what kind of party, and I don't know what the flood in my father's mouth is?"

"Whatever, the engraving on the right side is all about some perverse methods and imprisoning some guys who have gone mad, and since this guy has entered, let him suffer enough. ”

"The passage on the right side is handed down from ancient times, and the people in it are all monks from ancient times, will there be a problem when this person walks in?"

The other suddenly said with some concern.

"What are you worried about, no one has entered this place for hundreds of years, and the engraved ones are all some exercises, and those monks who have gone mad have been imprisoned, and nothing will happen. The two said in a low voice, but Gu Xu, who had the heart to pay attention to the two, heard it clearly.

"I've heard of the rich second generation before, the second generation of power, but I didn't expect to meet the second generation of immortals now, the monks in the flood wilderness are all cultivating little by little, even their descendants are strictly guarded, how did they get here, their own children have become like this. ”

Gu Xuan shook his head, showing a little disappointment, but he was a little interested in the monks who were imprisoned here, and walked in on foot, and saw that it was a huge stone path, constantly extending towards the ground, and many exercises were engraved on both sides of the stone path.

However, these exercises have great reference significance for Gu Xu, here, Gu Xuan even saw the cultivation method of the Five Ghost Heavenly Demon Formula, thinking of this, Gu Xuan couldn't help but take out the condensed Five Ghost Heavenly Demon Flag, and the evil spirit formed by the integration of the five ghosts and the five poisons of Buddhism on it became more and more powerful under the degree of the central Yuan Spirit.

Gu Xuan comprehended these exercises all the way, and also sighed all the way, judging from the breath and traces of these engraving exercises, it should be a long, long time ago, if you strictly speculate, I am afraid that it was engraved by the first generation of strong people who came here.

Because some of the ancient laws shocked Gu Xu, and many of them were even witchcraft in ancient times.

The more he went underground, the more ancient these spells became, some of them were simply ancient witchcraft spells and witchcraft, which made Gu Xuan surprised and delighted, and kept them in mind one by one.

However, the aura emitted by these witch spells and witchcraft is too evil, and if the mind is uncertain, just looking at these spells will make the mind disordered and the breath will be chaotic.

Gu Xuan looked at it layer by layer, and after being familiar with these witch spells and witchcraft, he suddenly had some thorough understanding of the pure yang spell he had used, and in this understanding, he also secretly pondered this pure yang spell.

When Gu Xuan was pondering here, he didn't know how long he had walked, I was afraid that it was enough for dozens of miles, and Rao took more than ten days at the speed of Gu Xu, and when he came to the end, Gu Xu condensed the power of faith in the Shending with a gas into a golden word mantra.

And when condensing this spell, Gu Xuan also came to a huge empty place, and looking around, there were countless dense caves.

Inside these caves sat countless monks wrapped in black robes, which were covered with chains of sigils.

"What a powerful evil spirit?"

Gu Xuan swept the black-robed people in these caves, and his face was slightly stunned. (To be continued.) )