After that, Ning Xin and the three of them searched carefully in the underwater city, but they didn't find anything special.

"I didn't expect this undersea city to be so big, we've been walking for a long time, and we can't see the end in sight!" Xia Wang said with a sigh.

"yes, it's just strange that there are no other creatures in such a big place except for those little black fish. Murong Xuan also agreed.

Ning Xin relied on the strength of her soul power, and tried her best to take Xia Wang and the two of them to the place where the soul power was concentrated, she didn't know if this walking direction was right, if the Yuanying monk didn't tell a lie, if there was really a treasure, then it was more likely to be in a place where the soul power was concentrated.

The cuttlefish must like to stay in a place with strong soul power, and if the soul power of a primordial infant monk is exhausted, the number of cuttlefish is not a few, and the soul power should also be relatively concentrated to meet the absorption of the cuttlefish fish!

Slowly, Ning Xin found that the more concentrated the soul power, the deeper it became, and there were almost no glowing ink soul fish around, which made Ning Xin a little puzzled.

Xia Wang and Murong Xuan have been silently following behind Ning Xin, Xia Wang is purely out of trust in Ning Xin, and does not think about anything else, anyway, wherever Ning Xin goes, he will follow;

And Murong Xuan thought about it a lot, after walking for so long, they were not tired at all, on the contrary, their spirits were getting better and better, this was definitely related to Ning Xin who led the way in front, she seemed to know where there was more soul power!

It seems that he still doesn't know Mu Ningxin, he used to just think that her martial arts value was high, and even Gu Tianling's genius could win, but now he finds that she is far more than what she shows, the disciples of Tianyi Sect are not wrong, she is indeed mysterious enough.

If it weren't for the heavy damage to the soul of the clan uncle and the fact that he had checked a lot of information, it was estimated that he, like other monks, would not know much about soul power, but even so, he didn't know that soul power could actually attack others.

On the island, Mu Ningxin helped them resist the soul power attack, how did she do it? Does she also have soul power attacks? Or does she know how to cultivate soul power?

Soul power cultivation is too tempting, Murong Xuan thought about it a lot, and wanted to ask, but he couldn't open his mouth, after all, this was a personal chance, Mu Ningxin had saved him more than once, and she was willing to use soul power in front of him, at least it showed that she regarded herself as a friend!

Ning Xin, who was leading the way in front, didn't expect that Murong Xuan guessed that she had cultivated soul power based on the fact that she helped them stop the attack of the cuttlefish fish, and she was now leading the two of them towards a place with strong soul power, and the further they went, the darker they became, and they would hardly see a cuttlefish later.

Looking at the black hole in front of him, as if he could suck them in at any time, Xia Wang swallowed his saliva and said to Ning Xin, "Senior sister, why don't we change directions?"

Ning Xin looked at the pitch black in front of her, she was also a little hesitant, if she went inside and encountered danger, she couldn't take care of Xia Wang and Murong Xuan, she thought about it before saying,

"I'm going in this direction according to my intuition, if I give up here, I'm a little unwilling, but what danger is inside, I don't know, why don't you stay here, I'll go in and have a look alone?"

"How can that work!" Xia Wang immediately called after hearing Ning Xin's words.

"Could it be that the two of us are not as brave as you as a woman?" Murong Xuan finished speaking, and walked out first.

Looking at the two people walking in front, Ning Xin was a little moved in her heart, this is a friend, sharing weal and woe, not abandoning or giving up.

After that, the three of them groped in the dark for a long time without making a sound, and when Ning Xin was a little deflated in her heart, there was a faint light in front of her.

Seeing the bright light, the three of them were very happy, "Be careful!" Ning Xin said.

The three of them slowly approached the light, and when they walked in, they found that this was a huge undersea cave, and it was the light emitted by the glittering moonstone in front of the cave door!

There was a particularly empty place in front of the cave, and the three of them were standing there now, and the three of them seemed very small compared to the cave.

Looking at the cave mansion in front of them, the three of them looked at each other, carefully approaching the entrance of the cave mansion, the closer they got to the entrance of the cave mansion, the more light there was, "Be careful, there is a formation!" Before Ning Xin finished speaking, one attack after another attacked Murong Xuan.

Originally, Murong Xuan was still carefully observing the surroundings, but before he could react, the attack came, which made him a little hurried to deal with it for a while.

Seeing that Xia Wang wanted to step forward to help, Ning Xin shouted, "Don't move." As he spoke, he threw out the Shadowless Whip and pulled Murong Xuan back, "It's okay!"

"It's okay, there's something weird here, I wanted to go back, but it seems that there is a force pulling me, so I can't come over at all, and how did I touch the formation?" Murong Xuan was a little puzzled, and a little frightened, just now he was not under his control at all!

Ning Xin looked at the glittering moonstones on the door of the cave, a full eighty-one, and looked at the light and shadow in front of the cave house along the light emitted by the moonstone, the light and shadow covered the cave mansion, in a semicircle, with a look of 10,000 square meters, Murong Xuan should have stepped into the light and shadow before being attacked, this is a light and shadow array.

"Don't walk into the light and shadow, as soon as you enter the light and shadow, you will be attacked, this is the light and shadow array. Ning Xin said to the two.

"But if you want to enter the cave, you have to pass through the light and shadow!" Xia Wang said.

"So, we must first break the formation in front of the cave, don't worry, wait first, give me some time, I can solve this formation." ”

The light and shadow array is arranged according to the projection of light, but fortunately, the light source of this array is fixed, that is, the number of light sources is a bit large, eighty-one, and it is estimated that it will take some time to break it;

If she encounters a moving light source, she may not be able to break the formation with her current cultivation, so thinking about it, it seems that the luck of the three of them is not bad!

To break the light and shadow array, the light source must be destroyed, and how to break the light source has become the key to breaking the array.

Ning Xin and the others now want to destroy the eighty-moon light stone on the door of the cave mansion, or pass through the light and shadow to break it at close range, but this method is a bit undesirable, generally the closer to the light source, the more powerful the attack in the formation will be, what kind of strength this attack has reached, they don't know, it is too risky to do so.

Another method is to break from a distance, which not only tests the monk's level of breaking the formation, but also tests the monk's cultivation ability.

Now Ning Xin observed the arrangement of the eighty-moon stones back and forth, and deduced the law of their projection of light and shadow, and broke the moonstones one by one according to this law.

Figuring out the laws of the light and shadow projected by the Eighty-Moon Stone, Ning Xin concentrated all her energy and spent a long time figuring out the rules of the formation, and now she only needs to break the formation from a distance according to these laws.

The distance is too far to break the formation with conventional formation breaking techniques, if other formation mages encounter them, it is estimated that they will have to go home; with Ning Xin's cultivation in the early stage of Jindan, conventional formation breaking techniques cannot be done, but Ning Xin's divine sense is comparable to that of Yuanying Monk.

After a long period of alchemy, Ning Xin's use of divine consciousness has reached the point of being free and accurate, and she is now going to use her divine sense to break the formation and destroy the moonstones on the door of the cave one by one.

Xia Wang and Murong Xuan watched the moonstones destroy one by one, and they were shocked beyond words, how did this happen?

When the last moonstone was broken, the surroundings returned to darkness, Ning Xin took out the moon pearl to illuminate, carefully walked to the entrance of the cave, pressed the mechanism, the door of the cave slowly opened, and a distant and ancient sound came into the ears of the three of them!