Early the next morning, Mu Mohan found Zhao Chen, said a few words, and Zhao Chen followed Mu Mohan and left Yingtian Academy. After a few days of travel, Zhao Chen and Mu Mohan came to the foot of a big mountain.

Along the way, Mu Mohan also explained the situation to Zhao Chen in detail, it turned out that Mu Mohan had discovered a secret place here not long ago. The so-called secret realm is generally a small world opened up by the powerful, and there are all kinds of rare treasures in it.

Some people obtain powerful spiritual skills in the secret realm, and some people obtain the magical elixir that changes their lives against the sky in the secret realm, in short, it all depends on their own fate in the secret realm.

Zhao Chen saw the mountain in front of him, towering into the clouds, and the white clouds swirled between the mountainside, as if this mountain was like a pillar supporting the sky, and it was not high. This mountain, which basically has no roads, leads to the top. The whole area is very steep.

Soon Zhao Chen and Mu Mohan came to this halfway up the mountainside, where the two of them obviously felt the sharp drop in temperature, and the two of them found a flat place after all and rested.

"Mo Han, how did you discover that there is a secret realm here?" Zhao Chen asked curiously.

"That time, I heard that there were Poria cocos here, so I came here to look for it, but Poria didn't find it, but found a secret place. Mu Mohan said slowly, and then said: "By the way, the place where we are resting now originally had a phantom array, and I can feel that this phantom array is very powerful, but it may be because of time, this phantom array is a little broken, and it has been cracked by me!"

What is the phantom array, the system's explanation to Zhao Chen is that the phantom array is a kind of formation that confuses people's minds to achieve the purpose of hurting people, and it is also true and illusory in the phantom array, and all kinds of fantasies are permeated in it; some are the things that people hope for the most; some are the things that people are most afraid of; and some are some painful or happy memories, which make people fall into it and can't extricate themselves!

And some more advanced phantom arrays can read information directly in people's minds, in the phantom array, just like reality, even if someone understands that this is an illusion, they will still fall into it, and the phantom array can usually find the vulnerable part of the person, and then trigger the inner demons, so that it will never recover.

After resting for a while, Zhao Chen and Mu Mohan climbed up again, and suddenly a powerful aura came to them, although Zhao Chen was not affected by the Tao at all, but seeing Mu Mohan's somewhat painful expression, Zhao Chen couldn't help asking, "Are you okay?"

As soon as Zhao Chen finished speaking, this powerful aura disappeared without a trace, and Mu Mohan had no expression of pain, and then said calmly: "It's okay, this aura is equivalent to a test." ”

This means that if you want to continue to go up, you must be able to withstand this powerful spiritual pressure. Zhao Chen said with some understanding. This is like an assessment, and only those who succeed in the assessment can continue to walk.

Mu Mohan also nodded. The two walked up again, and Zhao Chen watched the target get closer and closer, and it seemed that it was about to arrive.

Soon the two came to a steep rock wall, and when they looked down, they had reached a height of thousands of meters, and there were flying demonic beasts circling around them from time to time, staring at Zhao Chen and the others, as if they were treating them as food.

Zhao Chen and Mu Mohan ignored these demonic beasts, but directly jumped lightly and came to the top of this mountain. In an instant, they could feel a strong wind, like a knife cut, hitting them.

I saw that the top of this mountain was as if it had been cut by a sword, and it was very flat, like a high platform. In the center of this hilltop, there is a structure that resembles a circular altar.

The wind is getting stronger and stronger, and the two of them wrap their spiritual energy around their bodies, and they are not blocked by the wind in an instant, and they walk on it very easily.

It's strange to say, when they came to this altar, after Zhao Chen and Mu Mohan withdrew their aura, they didn't feel the attack of the hurricane, and they could even feel the warmth.

This altar is shrouded in a transparent barrier, and it can be seen that this altar is very complete, and it must be this barrier that protects it.

"Is this the entrance to the secret realm?" asked, looking at the entire structure of the altar.

"That's right, you look at the altar in the shape of a yin and a yang, and there is a stone ball on each side, which are called yang stone and yin stone respectively. Mu Mohan briefly described this altar to Zhao Chen.

Seeing that there were indeed two stone balls on this altar, according to Mu Mohan's statement, Zhao Chen also understood why Mu Mohan asked him for help, if he wanted to enter this secret realm, he had to have two people to open it. Yang represents men, yin represents women, and a man and a woman are the keys to this secret realm.

Zhao Chen wanted to complain a little, how did the owner of this secret realm come up with such a way to open it, his brain hole was enough!

"I understand, let's input the aura on the corresponding stone balls, and this secret realm will be opened, right?" Zhao Chen said his speculation.

"That's right!" Mu Mohan nodded.

"In that case, let's get started. Zhao Chen also began to be a little curious about this secret realm.

Soon the two of them began to input their own aura into the stone ball, but after inputting the aura, there was no movement.

"Mo Han, it can't be a mistake, right?" Zhao Chen said puzzled. Isn't it wrong to think before?

"I don't know about this now. Mu Mohan frowned, and he really couldn't figure it out.

"System, what should I do now?" Zhao Chen saw that Mu Mohan had nothing to do, so he had to consult the system now.

【Ding, ...... in Analysis】

【Ding, analysis successful】

[Behind the stone pillar in the center of the altar, there is a solution to the problem.] 】

"There are actually words!" Mu Mohan watched Zhao Chen walk behind the stone pillar and kept looking at the stone pillar, and he was also curious to walk over, and found that there were words on the stone pillar, and couldn't help but be surprised.

"The two poles are reversed?Zhao Chen, do you know what it means?" Looking at the four words on the stone pillar, Mu Mohan asked.

Then Zhao Chen said with some caution: "If I guessed correctly, the two poles are reversed, that is, I will input the aura into the yin stone, and you will input the aura into the yang stone!"

"I think it's possible!" Mu Mohan said in surprise.

"Then let's give it a try! If not, I'm thinking of something else. Zhao Chen said slowly.

"Hmm. I saw Mu Mohan nodding and agreeing.

The two also switched places, and once again injected spiritual energy into the stone ball.

"Sure enough!" The moment the aura was injected, the two stone balls also lit up instantly.

At the same time, in front of the stone pillar in the center, a spatial crack appeared, instantly sucking Zhao Chen and Mu Mohan into it. Soon the spatial rift closed again, and the altar became quiet again.