To make the Nuyan Sect, one of the five major sects of the Heavenly Wind, attach so much importance to it, and do not hesitate to forcibly occupy the mountain range, and find it for half a month, there must be something good in this secret realm.

But no matter what, the greater the benefits, the greater the risks. The better the realm, the more danger there is.

Fear comes from the unknown, in the huge pit, except for the stone steps, they can only see a pitch black, even the vision of the Xuan Realm does not work, they have no idea what awaits below.

Although he had decided to go down, it was always right to be careful, so Xu Zixian grabbed General Goose and threw him into the hole.

"Quack?"

The elegant and easy-going goose cry kept coming from below.

Xu Zixian manipulated General Goose, and in the darkness, he kept going down.

I don't know how long I walked, but when I finally reached the flat ground, the light around me became brighter.

At the end of the stone staircase is a large circular stone chamber, which is empty except for a few faint lanterns hanging on the walls.

On one side of the stone chamber is the entrance to the pool, and on the other side is a closed stone door.

Xu Zixian summoned General Goose to wander around for a long time, but he didn't trigger any mechanism, and he couldn't open the stone door, thinking that there was some conventional decryption game inside, so he recalled the big white goose and left it on the ground, and led Tang Yu down by himself.

The stone steps are very long, and the eyes are very dark, even Xu Zixian can't see, let alone Tang Yu, an ordinary girl who doesn't know the mysteries.

Deprived of sight, and there were long steps with no end under her feet, she was inevitably a little nervous in her heart, for fear of falling down with one foot in the air, so she gently grabbed Xu Zixian's sleeve with her little hand and rubbed forward little by little.

At her speed, she didn't know how long it would take to reach the stone chamber, and it was undoubtedly torture to stay in the darkness for a long time.

Xu Zixian is not a patient person, but he doesn't want to endure such torture in vain, so he offended the girl who was still rubbing forward with nervous steps, and then picked her up.

He passed one hand through the crook of Tang Yu's legs, and the other hand held her shoulder, and in this way, in the girl's exclamation, he jumped down with her soft and petite body, and finally fell smoothly into the stone room.

The sight suddenly recovered, Tang Yu's reddish pretty face, and slightly shy and excited apricot eyes, met Xu Zixian's eyes for the first time.

He gently put the person down, and the two of them swirled around the stone room in an ambiguous silence, trying to find out the hidden mystery of this place.

"Boom..."

I don't know who touched what, but the stone chamber suddenly began to tremble, and countless ashes fell from the top wall, and the dust and sand stirred up made people almost unable to open their eyes.

As soon as the change occurred, Xu Zixian pulled Tang Yu up and retreated to the stone steps, and only then did he lead people back until the stone room calmed down.

After the shaking of Fangcai, changes have taken place in the stone room.

The opposite door was still closed, but the color was different from before.

Blue, white, red, blue, and black, five colors, arranged on it, and a "five" character is also greatly lit up in the middle.

And under the feet of Xu Zixian and the others, a five-colored stone slab also appeared, and a glowing "five" appeared.

What do you mean?

Xu Zixian frowned secretly.

These five colors seem to correspond to the five systems of Xuanqi.

What does the word "five" mean? The word "five" is not good?

Before Xu Zixian could come up with a reason, there was another change in the stone room.

The cyan stone slab on the stone door slowly lit up, and after a few breaths, it slowly extinguished.

Then, a cyan wind aura shot out from the stone gate and hit the two of them.

The power of this wind and Xuan Qi is not very strong, at most it is only at the level of the Human Yellow Realm, and it is not like the attack method of any organ, Xu Zixian just waved his hand and scattered it.

However, just after Xu Zixian defeated Feng Xuanqi, the number under his feet suddenly changed from "five" to "four", while the number on the stone gate did not change.

"If I'm not mistaken..."

Tang Yu looked down at the "four" under his feet and said, "These two numbers are probably what we have left... Well, the number of times remaining, or the number of lives, the number of health. ”

"If our numbers go to zero first, we will fail the challenge and we will not be able to open the stone gate, otherwise the stone gate will open."

She held her chin with her hand, her fingers rubbing constantly, and her face was full of thought.

"Since our numbers are still decreasing after you break up the Xuan Qi shot out of the stone gate, it means that the intruder's own attack methods are ineffective, and even if you attack the stone gate, the number of the stone gate will not change."

"The stone slab on the stone door will light up with a color, and then emit a corresponding mystical aura when the light goes out."

"The stone slab under our feet is not lit, it should be the mechanism we use to deal with the stone gate, and when the stone gate lights up again, you might as well step on it and try it."

Xu Zixian looked at Tang Yu with a little surprise.

The girl's eyes were rippling, the corners of her lips were slightly curled, and her pretty face was full of confidence.

Smart, smart, as if everything is under control, these temperaments are fully displayed in Tang Yu at this moment, which is completely inconsistent with her usual appearance full of pink peach blossoms.

In such a little time, so many things can be analyzed, and she really deserves to be the eldest lady of the Tang family.

The stone gate lit up again, and Xu Zixian stepped on the cyan stone slab with his feet according to Tang Yu's meaning.

Sure enough, the moment his foot touched the slate, the slab immediately glowed.

The same cyan light, the same cyan wind and mysterious qi, shot out from the stone gate and the stone slab, and finally collided together, each dissipating.

At the same time, the number on the stone gate became "four" and the number on the ground dropped to "three".

Seeing this, Xu Zixian frowned secretly.

In this way, you must choose a stone slab with a different color from the stone gate, otherwise the number on your side will be reset to zero first.

"This mechanism seems to be the intruder of the master of the secret realm in the examination school, and the relationship between the various departments of Xuan Qi..."

Tang Yu, who didn't understand the mystical path, suddenly frowned and asked Xu Zixian, "Do all the mystical qi of each department have restraint?" ”

Xu Zixian shook his head.

Just as there will be no two identical leaves, there will be no two mystic beings in this world with exactly the same strength, different mystical skills with the same power.

The strong overcomes the weak is the eternal restraint relationship between the mysteries.

The stone gate lit up again, but this time it was blue light, representing the water Xuanqi.

When it comes to water, the opposite is naturally fire, Xu Zixian stepped forward and stepped on the red stone slab under his feet.

The Shui Xuan Qi and the Fire Xuan Qi collided together, and the Fire Xuan Qi immediately collapsed, and the Shui Xuan Qi continued to move forward, and finally crashed into the surrounding stone wall and disappeared.

"Xu Gongzi, it seems that the fire can be extinguished by water."

Tang Yu looked at the number that had become "two" under his feet, and said to Xu Zixian with a smile that children know common sense.

Xu Zixian ignored her quips, thinking about the so-called attribute restraint in his mind.

The fire was restrained, the water was likewise removed, and after the two wrong answers were removed, only wind and thunder remained.

The wind blows on the water... can blow a puddle of spring water, it shouldn't be.

Thunder struck in the water... Electric fish are going to be in prison.

It seems...

Xu Zixian silently stepped on the black stone slab.

The two Xuan Qi rose again, and the result was just as he thought, the Earth Xuan Qi defeated the Water Xuan Qi.

Seeing the number on the stone gate turn into "three", Xu Zixian did not have the slightest joy in his heart.

At this moment, he only has a sense of humiliation of racking his brains and using exhaustive methods to make children's common sense questions.

And with the example of water, the latter is much better.

Earth overcomes water, water overcomes fire, fire overcomes thunder, reek wind, wind overcomes earth.

The numbers on the stone door slowly reset to zero, and the five-colored stone slabs on it faded in color.

Tang Yu frowned, as if puzzled.

"I can barely understand the earth and water, the wind and the earth, but what's going on with the fire clay? If you can't get anywhere, how can all fire be thunder? ”

Xu Zixian shrugged noncommittally, "Perhaps, I just want to pay attention to each other." ”

He didn't understand why.

It can't be a spark that can start a prairie fire and work together, and the will of heaven is unstoppable, right?

Don't say it, it seems to make some sense.

Xu Zixian didn't dwell on it for a long time, and the stone gate on the opposite side soon changed again.

It lit up again, only this time it was "three", and there was no longer a stone slab corresponding to the five series of Xuan Qi on it.

And under the feet of Xu Zixian and the others, there is still the word "five" and the five-color slate.

After waiting for a long time, Shimen didn't make any movement, obviously this time it was Xu Zixian who needed them to take the initiative to do something.

And in the face of this headless and tailless change, Xu Zixian and Tang Yu looked at each other, a little confused.